Tender Designs of Major Infrastructure Highway Projects Tunnels & Earthworks (Cuts & Embankments) of the Comarnic – Brasov Motorway Romania Project Tunnels, cuts and embankments of the Comarnic – Brasov Motorway, Romania. Construction Cost Total Cost: approx. €. 1.5bn. hdl Proj ect Schedul e Tender Design: 2013 Construction: 2014 - Project Description • Sinaia, Busteni & Predeal Twin Bore Highway Tunnels Sinaia length: 5.890m Busteni length: 6.200m Predeal length: 7.500m Predeal length: 7.500m Excavation cross section: 84m 2 -132m 2 Effective cross section: 66m 2 -81m 2 Excavation Method NATM – Mechanical excavation, drilling and blasting Final Lining Reinforced concrete • Highway Cuts and Embankments (Section from Ch. 110+600-168+600) Embankments: Ltotal = 26.0km Cuts: Ltotal = 11.0km Geology • Alluvial deposits, limestones, flysch, marbles, schist and conglomerates Typical tunnels cross section • Groundwater • Max. overburden at the tunnels: 195m – 340m Our Services Tender design and preparation of the technical offer on behalf of ViStrAda Nord Client Typical embankment cross section 4, Thalias Str. & 109, Kimis Ave., P.C. 151 22, Maroussi, Athens Tel.: + 30 210 6837490, + 30 210 6897040, + 30 210 6835858 Fax: + 30 210 6837499, e-mail: [email protected], www.omikronkappa.gr ViStrada Nord Consortium (VINCI S.A. - VINCI Construction Grand Projects S.A.S. - VINCI Construction Terrassement S.A.S. – STRABAG A.G. - STRABAG S.E. – AKTOR Concessions S.A. - AKTOR S.A.)
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Tender Designs of Major Infrastructure Highway Projects
ViStrada Nord Consortium (VINCI S.A. - VINCI Construction Grand ProjectsS.A.S. - VINCI Construction Terrassement S.A.S. – STRABAG A.G. -STRABAG S.E. – AKTOR Concessions S.A. - AKTOR S.A.)
Railway Project Consulting services, technical review and checking of designs and Panagopoula Railway Tunnel associated detailed designsAthens - Patras High Speed Railway Line, Section Rododafni – PsathopirgosGreeceGreece
Project• Consulting services, technical review and checking of the designs of
the project: “Construction of the New Double High Speed Railway Lineat the section Rododafni – Psathopirgos from CH. 91+500 until CH.113+000 and Panagopoula Railway Tunnel design”.
GeologyQuaternary deposits of clayey scree from the marls weatheringencountered in the area and pliocene and pleistocene sedimentscharacterized by marls (stiff clays) and conglomerates alternations,limestones, chertstones
Our Services• Consulting services, review and checking of the designs of the project
in order to identify adequacy and incompleteness of the availabledesgns relevant to the projects’ feasibility and constructability
• Detailed design of Panagopoula railway tunnel West adit and portal• Detailed designs of the intermediate and west caverns and cross
Clients• AKTOR S.A. – J&P AVAX S.A. – INTRAKAT S.A. Joint Venture• AKTOR S.A. – J&P AVAX S.A. Construction Joint Venture
Adit’s portal pilewall
RockFill Highway Embankments
Demir Kapija-Smokvica MotorwaySection of European Corridor 10 & Part of the NationalRoad M-1 (E-75)Road M 1 (E 75)Scopje
ProjectDesign of rockfill reinforced embankments for the Demir Kapija –Smokvica motorway. Construction phase design for the incorporation,utilization of suitable rock type fill materials obtained from the cuts ofth j t i th t b k tthe project in the motorway embankments.
Construction CostTotal cost of the highway: approx. € 270m
Project Description• Total highway length: 28km• Reinforced embankments’ total length: 5km• Reinforced embankments’ max. height: 40m• Reinforced embankments’ slope: 2:3 and 1:1 (v:h)
GeologyGabbro – diabase complex rock formations of Diabases and Spilites Placement and leveling of fill materialGabbro diabase complex, rock formations of Diabases and Spiliteslocally covered with soil-like superficial mantle consisting of diluviumdeposits and talus – scree materials.
Our Services• Geotechnical Design of rockfill reinforced embankments• Slope stability analysis checks, dimensioning of the rock type
embankments and determination of the necessary and appropriateper case reinforcement requirements (tensile strength of the geogrid
Placement and leveling of fill material
elements, length, vertical spacing)• Elaboration of technical reports, detailed construction drawings,
calculation notes, technical and constructability issues• Consultancy Services
Typical cross section and construction details for the rock fill embankments
Rockfall Protection & Slope Support WorksDemir Kapija-Smokvica Motorway / Celevecka GorgeSection of European Corridor 10 & Part of the National Road (E-75) S j75), Scopje
ProjectRockfall protection works design and slope support-stabilizationmeasures design at the Celevecka river gorge. The alignment of TunnelT1 crosses the rivers’ stream with very steep, adverse rocky morphologybringing about high risk of potential rockfalls.
Construction CostConstruction CostTotal cost of the highway: approx. € 270m
Project Description• Gorge crossing length: ~120m• Four (4) gorge portals of tunnel T1 examined: North left and right, South
left and right• Rocky slopes’ height above the portal areas: max. 250m• Mountainous region under extremely unfavorable geomorphological
conditions, very steep rocky terrain (almost subvertical slopes), potentialrockfall source areas along the entire cliff rocky face
• Very high kinetic energies and bounce heights expected, highlyhazardous area
GeologyJurassic Limestone, slightly weathered and karstified with more intenseweathering and fracturing limited in the vicinity of faults and fault zones.Structural fracturing of the rockmass from major discontinuity sets.
Our Services• Geotechnical Design for rockfall protection and slope support works –Works Method StatementId tifi ti d l ti f t ti l f il h i
Rockfall protection and slope support measures at the south right gorge portal of tunnel T1
• Identification and evaluation of potential failure mechanisms• Stability analysis checks (rockfalls, planar and wedge type modes of
failure)• Determination of the necessary and appropriate per portal case rockfallprotection/mitigation systems (type of rockfall barriers, energyabsorption capacity, post height) and slope support-stabilizationmeasures (type of steel wire mesh, rockbolts, bearing capacity, length,pattern)
• Elaboration of technical reports, detailed construction drawings and
ClientAKTOR S.A. Rockfall protection barriers at the north right and left
gorge portals of tunnel T1
Highway Embankments – Cuts - Structures
Final geotechnical designs for Poligiros – UranoupoliMotorwayGreece
ProjectEarthworks final geotechnical designs (embankments and cuts)and foundation designs for overpasses, underpasses, culverts,bridges, cut & covers of a 38 km motorway stretch at Poligiros –Uranoupoli motorway, Greece.
D i C tDesign CostDesign cost: approx. € 321 k.
Project ScheduleDesign: 2010 – on going
Project Description• Total highway length: 38km• Embankments’ total length: 1km
DUBAI – FUJAIRAH FREEWAYSlope Stability Audit - Slope Stabilization and RockfallProtection Design, United Arab EmiratesProjectSlope stabilization and rockfall protection design at the Dubai-Fujairah Freeway. Geotechnical evaluation and determination of the required preventative and protective measures, as well as repair and remedial works
Project DescriptionAssessment of the cut slope stability and determinationof the necessary slope stabilization works and rockfallprotection measuresDesign Length: 22.0 km
Geomorphology - Geologyp gy gyMountainous terrain with steep rocky slopes of significantheight (exceeding 50m up to 110m)Ophiolite complex (gabbros, basalts, dunites, peridotites,serpentinites, breccia)
Our Services• Technical advisor - consultant services and special expertise
in geotechnical engineering and rock-soil mechanics• Geotechnical design
Existing rocky cut slopes
• Identification of the encountered geotechnical problems and evaluation of the potential slope failure mechanisms –elaboration of detailed stability audit
• Execution of stability analysis (planar, wedge, rockfalls, composite failures)
• Determination of the necessary support - stabilization measures
• Detailed dimensioning of the mitigation systems, technical specifications and construction method statementspecifications and construction method statement
• Elaboration of technical report, construction drawings and BOQ’s
• On site technical expertise and consulting services• Inspection, monitoring and maintenance plan
ProjectRockfall protection design at Athineo – Lefktro section (Rapsomatiarea) of the Tripoli – Kalamata road axis (Peloponnese)
Construction CostTotal cost: approx. 0.5 m. €
Project ScheduleDesign: 2008Construction: 2009
Project DescriptionProject DescriptionAssessment of the cut slope stability and determination of thenecessary support and rockfall protection measuresLength: 450m
GeologyRocky slopes of medium inclination with height up to 50mThin to medium bedded Limestones
O S i
Typical cross section with installation of rockfall barrier
Our Services• Detailed geotechnical design• Identification and evaluation of the potential slope failure
mechanisms – elaboration of detailed stability audit• Execution of stability analysis (rockfalls)• Determination of the necessary support - stabilization measures• Detailed dimensioning of the mitigation systems, technical
specifications and construction method statement• Elaboration of technical report, construction drawings and bill of
Design area general view
p , gquantities (BOQ)
• Consulting services during on site application• Designs jointly elaborated by OMIKRON KAPPA CONSULTING SA
and EDR GmbH, Munich
Construction DetailsInstallation of approx. 400m of rockfall protection barriers
Project DescriptionAssessment of the cut slope stability and determination of thenecessary slope stabilization works and rockfall protection measuresLength: 5.0km
Geomorphology - GeologyMountainous terrain, very steep rocky slopes of significant height upto 150mThick to medium bedded crystalline limestones, Phyllites, soil likeformations (limestone boulders, scree – debris materials)
Our Services• Detailed geotechnical design
Rockfall protection barriers Installation
g g• Identification and evaluation of the potential slope failure
mechanisms – elaboration of detailed stability audit• Execution of stability analysis (rockfalls, planar failure, rock wedge
formation, toppling, circular slip failure)• Determination of the necessary support - stabilization measures• Detailed dimensioning of the mitigation systems, technical
specifications and construction method statement• Elaboration of technical report, construction drawings and BoQ’s• Consulting services during on site application• Consulting services during on site application
Construction Details• Scaling works performed manually or/and with the use of
mechanical means• Installation of approx. 1,900m of rockfall protection barriers• Installation of approx. 5,500m2 slope stabilization systems
(fully anchored Tecco type mesh, Spider type net)• Application of approx. 1,350m of permanent, fully grouted rock
bolts• Rehabilitation of the existing fences and the drainage ditches
ClientMALIAKOS KLEIDI CONSTRUCTION J/V(HOCHTIEF – AKTOR – J& P AVAX– VINCI CGP – AEGEK – ATHENA) Slope stabilization systemapplication
Highway Cut Slopes
PANTELEIMONAS AREA (PLATAMONAS)PATHE SECTION MALIAKOS – KLEIDI MOTORWAY, Concession Project Slope Stabilization and Rockfall
ProjectSlope stabilization and rockfall protection detailed design atPanteleimonas area (Platamomas) of the National Roadway Athens– Thessaloniki
Concession Project, Slope Stabilization and RockfallProtection Detailed DesignCentral Greece
Construction CostTotal Cost: approx. 0.5 m. €
Project ScheduleDesign: 2008Construction: 2010
Project DescriptionAssessment of the cut slope stability and determination of theAssessment of the cut slope stability and determination of thenecessary stabilization works and rockfall protection measuresLength: 2.5km
Geomorphology - GeologySteep rocky slopes of average height 10 - 20mCrystalline Limestones, soil formations (limestone boulders, screematerials)
Typical cross section with installation of rockfall barrier and mesh
Our Services• Detailed geotechnical design• Identification and evaluation of the potential slope failure
mechanisms – elaboration of detailed stability audit• Execution of stability analysis (rockfalls, wedge failure)• Determination of the necessary support and stabilization measures• Detailed dimensioning of the mitigation systems, technical
specifications and construction method statement• Elaboration of technical report construction drawings and bill of• Elaboration of technical report, construction drawings and bill of
quantities (BOQ)• Consulting services during on site application
Construction Details• Scaling works performed manually or/and with the use of
mechanical means• Installation of approx. 100m of rockfall protection barriers• Installation of approx. 2,500m2 slope stabilization systems
+119.45Permanent f ully grouted spot rock bolts withantiox idant protection c oating Φ25, S500length 4 00m bearing capac ity 2 00kN
ProjectDetailed design of slope repair and remedial works for the existingembankments and cuts of Elefsina – Korinthos – Patras – Pyrgos –Tsakona Motorway
Construction Costs
Left
bran
chΑριστερός
κλάδος
Rig
ht b
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hΔεξιός κλάδος
35.30
+87.87+88.04
TerrainΦυσικ ό ανάγλυφο
Existing Rock trap wallΥφιστάμενος τοίχοςβραχοπαγίδας
Indicative positions of anchors(where required acc ording tothe in situ conditions)Ενδεικτικές θέσεις αγκυρίων(όπου απαιτείται από τις επίτόπου συνθήκες )
20.7
8
Existing TerrainΥφιστάμενοφυσικό ανάγλυφο
Indicative positions of anchors(where required according tothe in si tu condi tions)Ενδεικτικ ές θέσεις αγκυρίων(όπου απαιτε ίται από τις επίτόπου συνθήκες )
Project DescriptionRehabilitation of existing cuts and embankments
G l
Indicative cross section with the appropriate repair and remedial measures
GeologyLimestones, marly limestones, conglomerates and artificialembankment bodies
Our Services• Detailed geotechnical design• Identification and registration of all problems and hazards• Geological mapping and assessment of the geotechnical
parameters• Stability analysis to determine the potential failures and to work on
the protection measures• Determination of all necessary protection and rehabilitation
measures (installation of rock fall barriers, slope support)• Construction Drawings• Bill of Quantities - Budget
Construction Details• Scaling with the use of light mechanical means
Existing cut view
• Installation of rockfall barriers• Installation of slope protection measures• Application of permanent rock bolts• Installation of 3-D protection geogrid• Application of hydroseeding• Rehabilitation of damaged drainage culvert• Construction of drainage ditch at the top of existing retaining wall• Construction of support walls
ClientAPION KLEOS Construction JV(VINCI CONSTRUCTION GRANDS PROJETS S.A.S. - HOCHTIEFConstruction AG - J&P-AVAX S.A. - ATHENA S.A. – AKTOR S.A. –GEK/TERNA S.A.)
Rockfall Protection
Kakia Skala Section PATHE HighwayCentral Greece
ProjectHighway protection from rockfalls
Construction CostTotal cost: approx. € 2 m.
Project ScheduleDesign: 2003Construction: 2003
Project DescriptionTotal length of barriers: approx. 2000m
GeologyLimestones and dolomitic limestonesVery steep morphology
Construction MethodSpecial barriers installed to prevent rockfalls and to absorb kinetic energy
Our ServicesGeotechnical analysis and design of rockfall barriersGeotechnical analysis and design of rockfall barriers
Project Description• Rehabilitation of failures in the slopes of open cuts in a
highway section of approx. 3km length• One-sided and two-sided open cuts constructed from a
previous contractor with medium uniformly gradient 2:3 andfluctuant height from 1m up to 10m, which were appearingserious hydraulic mining problems, surface erosions andfailures of small depth
Open cut slopes view prior to rehabilitation
failures of small depth
GeologyMarls of clay and consistence and sand marlsAlluvial
Our Services• Detailed geotechnical design• Identification and registration of the slopes problems• Execution of stability back-up analyses for the assessment of
the geotechnical engineering characteristics of soils• Assessment of the necessary earth works interventions for
the rehabilitation of failures• Assessment of flood protection and anti-corrosion measures• Construction drawings• Bill of Quantities, Budget
Construction DetailsConstruction Details• Installation of loose material of the existing failures with
granular crust material• Installation of 3-D Geogrids ENKAMAT type for the anti-
corrosion slopes protection• Turfgrass planting over the slopes surface• Planting of small trees• Installation of drainage wholes at the foot of the slope• Construction of drainage trenches over the slopes crown
Concession project for the Construction, Operation &Maintenance of «Milot-Morine» highwayAlbania
ProjectTender design and consultancy services for the Milot – Morine highwaywith respect to the conditions of the cuts and embankments and theexisting Thirra tunnel, as well as, the new construction elements of thehighway referring to the earthworks for the dualization of the firstsection of the highway from Milot to Rreshen and the new twin boreKukes Tunnel
• New Kukes Tunnel: 2*250m=500m, effective cross section: 50m2
GeologyRock formations, mostly ophiolites and limestones, with differentialRock formations, mostly ophiolites and limestones, with differentialdegree of weathering, fracturing and tectonic deformation. Soft rockand soil-like formations are also encountered, especially in the firstsection from Milot to Reps and the last section from Kukes to Morine
Our Services• Independent diagnosis on the conditions of the entire existing
alignment of the highway with respect to the earthworks andpreliminary definition of the required works to decrease thegeotechnical risk associated with landslides and rockfalls and the
Existing Thirra tunnel
geotechnical risk associated with landslides and rockfalls and thecurrent status of the existing earthworks / environmental concerns –Safety assessment of the existing Thirra tunnel
• Method statement with qualitative future maintenancerequirements for the existing earthworks (cuts - embankments) andthe existing Thirra tunnel
• Tender designs for the construction elements• BoQ estimates for the interventions required to decrease the
geotechnical risk of the existing earthworks, the new earthworks ofth hi h ti t b d li d d th K k t l
the highway section to be dualized and the new Kukes tunnel
Client• VINCI CONCESSIONS SAS - AKTOR CONCESSIONS S.A.• AKTOR S.A.
Highway embankment slopes view
Feasibility Studies and General Design
SEETO Road Route 4 Investment Plan Feasibility Studies for earthworks (cuts, embankments,ground improvements, rock fall & avalanches), tunnelsg pand other structuresMontenegro
ProjectFeasibility studies and general design for Road Route 4 connectingthe port of Bar with Corridor 10 in Serbia.P t f M t ’ hi h t k li R t 4 t t h f thPart of Montenegro’s highway network lies on Route 4 stretch of thecore road network defined by the South East Europe TransportObservatory (SEETO). SEETO road route 4 runs for 597 km betweenVatin (Romanian border) – Belgrade (Serbia) – Podgorica(Montenegro) - Bar (Montenegro). The Montenegrin portion, runs forabout 180 km, generally North – South, from the Serbian border to thecoast at Djurmani where it intersects SEETO road route 1, or Adriatichighway.
Design: 2012- 2013
Project DescriptionFeasibility studies and general designs for the alternative alignmentsof the project, for earthworks (cuts, embankments, groundimprovements, rock fall & avalanches), the tunnels (approx.29km ofroad tunnels per branch with cross section approx. 90-120m2) andother structures.
Route 4: Montenegrin portion
GeologyAt the beginning of the route mainly limestone and dolomiteformations with some conglomerates and peridotites. After Uvac andup to the Serbian border, the geology changes and flysch, clayeymarls, sandstone formations and marly limestones are met.
Our Services• Inception reportp p• Geotechnical surveys• Preliminary geotechnical designs• General geotechnical design and Bidding documents for the
construction works• Operations & maintenance plan• Environmental and social impact assessments according to the
Our Services• Detailed geotechnical, structural & foundation designs• Geotechnical interpretation reports. Evaluation of the in situ conditions,
establishment of the foundation profile, the geotechnical engineeringti th d i t d l dproperties, the design parameters and loads
• Execution of stability analysis checks under the provisions of InternationalStandards and Guidelines (BS standards, Eurocodes, AASHTO standards),e.g. rotational check, sliding, bearing capacity, settlement, overturning,planar failure, wedge failure etc.
• Detailed dimensioning of the earthworks and structures and determinationof the necessary reinforcements, retaining, supports and stabilizationmeasures (strength, bearing capacity, spacing, length, technical specs ofmaterial, quality & durability needs)
• Elaboration of technical reports, detailed construction drawings, calculationElaboration of technical reports, detailed construction drawings, calculationnotes, instrumentation-geotechnical monitoring reports
• Quality, longevity & serviceability assurance of the designed works• Constructability issues, technical specifications, requirements, construction
standards & guidelines• Designer on site services & Technical Consultancy Services
Construction Details• Geogrid reinforcement elements, MSEW facing with Terramesh system or
Construction of Segment No 3 in Tirana-Elbasan Road (Krabbe Tunnel Exit Km 15.2 till Elbasan city Km 27) / FIDICConditions of Contract AlbaniaConditions of Contract, AlbaniaProjectHighway earthworks, retaining structures, culverts, hydraulic works
Construction CostTotal cost: approx. 86m $
Project ScheduleDesign - Construction: 2012- 2013
Project DescriptionFinal detailed designs of permanent open cuts, mechanicallystabilized earth walls, embankments, retaining structures, culverts,gabion walls, piles, dewatering-drainage measures, groundimprovement, treatment & rehabilitation worksEmbankments: Ltotal = 10.0km, Hmax = 40.0mCuts: Ltotal = 5.0km, Hmax = 60.0mMSEW: Ltotal = 1.0km, Hmax =20.0mGabion walls: Ltotal = 0.35km, Hmax = 9.0m C l t Lt t l 0 5k S 2 0 2 5Culverts: Ltotal =0.5km, Smax = 2.0mx2.5m
Our Services• Detailed geotechnical, structural & foundation designs• Geotechnical interpretation reports. Evaluation of the in situ conditions
and establishment of the foundation profile, the geotechnicalengineering properties, the design parameters and loadsengineering properties, the design parameters and loads
• Execution of stability analysis checks under the provisions ofInternational Standards and Guidelines (BS standards, Eurocodes,AASHTO standards), e.g. rotational check, sliding, bearing capacity,settlement, overturning, planar failure, wedge failure etc.
• Detailed dimensioning of the earthworks and structures anddetermination of the necessary reinforcements, retaining, supportsand stabilization measures (strength, bearing capacity, spacing,length, technical specs of material, quality & durability needs)
• Elaboration of technical reports, detailed construction drawings,l l ti t i t t ti t h i l it i tcalculation notes, instrumentation-geotechnical monitoring reports
• Quality, longevity & serviceability assurance of the designed works• Constructability issues, technical specifications, requirements,
construction standards & guidelines• Designer on site services & Technical Consultancy Services
Construction Details• Geogrid reinforcement elements, MSEW facing with Terramesh system
or gabions, drainage foundation improvement layers, permanentrockbolts-soil nails, pre-stressed anchors, concrete pile walls, gabion
ClientJV AKTOR – COPRI (Albania) Construction works
Highway Embankments
“Construction of “Struma” Lot 4 Highway, section “Sandanski-Kulata” from km 423+800 to km 438+500, Bulgaria” gBulgaria
ProjectFinal designs, techniques, mechanical mixing guidelines anddocumentation for the construction of the embankments of themotorway project “Struma” Lot 4, section “Sandanski-Kulata”from km 423+800 to km 438+500, Bulgaria, g
Graphical representation of PI, LL estimates of resulting soil mixtures
Project DescriptionEarthworks aggregate excavation volume 2,000,000m3 andembankment fills volume 1,700,000m3 (out of which animportant portion consists of upgrading the existing alignmentthrough lateral extension to a four lanes motorway)Embankments mainly low in heightMax. embankment height: 8m
Geology Trial embankment (H=8m) cross sectionAlignment crossing plains featured with alluvial deposits(consisting of clays, silts and sands and mixtures) and hills ofweathered peridotites
Our Services• Evaluation of available laboratory tests on the parent
(“unsuitable”) soil materials for embankment’s fill use• Evaluation of available laboratory tests on the potential
“borrow” materials for embankment’s fill use
Trial embankment (H 8m) cross section
borrow materials for embankment s fill use• Substantiated design, for mechanical mixing of the
“unsuitable” materials of the project with the “borrow”materials (mixing proportions, laboratory tests, field trials etc.)
• Substantiated design for the construction of two (2) testembankments and monitoring instrumentation program
• Interpretation of the monitoring results of the two testembankments
Typical cross section of the motorway at embankment’s position
Railway Embankments Design for the New Double High Speed Railway Line Liakokladi - DomokosCentral GreeceCentral Greece
ProjectDesigns of reinforced embankments for the project: “Design ofinfrastructure Works from CH 25+000 until CH 52+000 of theNew Double High Speed Railway Line at the section Lianokladi– Domokos”
Project DescriptionTotal length of excavation works: 4000mEmbankments : soil or rock fill material reinforced with geogridsModulation geometry: one or double sidedReinforced slopes with gradient 2:3D k idth 13 0 13 5Deck width: 13.0m – 13.5 mMaximum height: 20m
GeologyRecent disposals, scree, serpentinized peridodites, limestone’sflysh formations, weathered mantle, schistosed serpentinites,ophicalcites (encountered as highly weathered or as rockyformations)
Our Services• Detailed design• Construction drawings
Construction Details• Construction of drainage – foundation improvement layer and
application of separation geotextile• Construction of embankments with soil fill materials• Foundation of the embankments with reinforced geogrids• Installation of 3-D protection geogrid for slope protection
Project DescriptionDetermination of the subbase requirements of the new double trackDetermination of the subbase requirements of the new double trackhigh speed railway line Tithorea-Lianokladi at section 14+300 –19+000
Geomorphology – Geology• Clayey-marl formations, with scattered intercalations of sandy-
marl• The presence of the sand layers in combination with the
inclination of the layers acts as a water bank, creating confinedt f hi h it d h d t ti
Subbase reinforcement with geogrids typical cross section
water masses of high capacity and hydrostatic pressure• During slope excavation, intense water flow was monitored from
the sand layers of the “champagne” effect type and creation ofmudflow
Our Services• Investigation of the in-situ geotechnical conditions of the subbase• Qualitative classification of the subbase according to UIC719R
2008• Selection of the required subbase reinforcement according to
UIC719R 2008• Appropriate reinforcement of the subbase with geogrids and soil
replacement in sections of the project where the minimumrequirements of the UIC719R 2008 are not met.
Σχεδιασμός μόνιμων πρανώνσύμφωνα με εγκεκριμένεςγεωτεχνικές μελέτες
DSR6
4 5.2
4
Excavation layout for the partial removal of landslided masses
ProjectLandslide rehabilitation and slope protection in 3 areas of the projectfrom Ch. 15+365 up to Ch. 15+665from Ch. 15+710 up to Ch. 15+835from Ch. 16+651 up to Ch. 16+804
Project DescriptionWorks for the stabilization of the landslide phenomena and the finalrehabilitation of the area, taking into account the in-situ conditions andminimizing any destabilization risks
BH1
1:3
ΑΞΟΝΑΣ ΔΙΠΛΗΣ ΣΙΔ. ΓΡΑΜΜΗΣ
Αποστραγγιστική τάφροςσύμφωνα με υδραυλική μελέτη
13.3
1
47.5
047.5
0
1:3
1:3
1:3
1:3
1:3
Εγκάρσια κανάλια εκροήςσύμφωνα με υδραυλική μελέτη
Όριο επ ιχώματοςσταθεροποίησης -αποκατάστασης
ΕΠΙΧΩΜΑ ΜΕ ΟΠΛΙΣΗΓΕΩΠΛΕΓΜΑΤΩΝ
Εγκάρσια κανάλια εκροήςσύμφωνα με υδραυλική μελέτη
Our Services• Geotechnical investigation program and geotechnical interpretation of
the landsliding mechanism• Drainage works design• Design of the best possible slope layout and removal of the landslide
materials• Stabilization and rehabilitation embankments• Landslide retaining pilewalls• Long term anticorrosion slope protection• Long-term anticorrosion slope protection• Execution of back analysis and determination of the potential sliding
surfaces
Design Details• Excavation layout for partial removal of landslide material on 1:3 slopes• Geometrical and reinforcement calculation of the necessary pilewall
systems for the protection of the excavations and strengthening of thesubbase
• Application of reinforced embankment for stabilization and
Reinforced Embankment Final Designs and Mechanically Stabilized Earth Wall Detailed Designs Elefsina – Korinthos – Patras – Pyrgos - TsakonaMotorway Concession ProjectMotorway, Concession Project Central & Southern Greece
ProjectDetailed designs of mechanically stabilized earth walls withheight up to 15m and reinforced embankments of height upto 26m for treating with adverse geometries during theg g gconstruction of highway embankments
Construction CostTotal project’s cost: approx. € 80 m.
Project ScheduleDesign 2009 2010
AXI
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ΑΞΟ
ΝΑΣ
SR4
Design: 2009 - 2010Construction: -
Project DescriptionTotal reinforced embankment and MSEW length: ~8300mMaximum height: 26mMSEW slope: 1:1 up to verticalReinforced embankment slope: 2:3 up to 1:1
Reinforced embankment cross section
Αξονα
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/μου
Mot
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ay ax
is
ΛΕΠΤΟΜΕΡΕΙΑ "C"DE TAIL " C"
GeologyPliocene and Plio-pleistocene Marls, Conglomerates,Alternations of Marl-Conglomerates, Alluvial Deposits,Weathered slope materials, Sands, Gravels, Clay-Silts
Our Services
+60.46
+58.54
+56.62
+54.70
+52.78
+50.86
+50.34
+61.68
+53.73
+60.12
+51.12
+50.00
+50.10
+51.30
+59.87
+50.12
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ΛΕΠΤΟΜΕΡΕΙΑ "A"DE TAIL " A"
Our Services• Geotechnical interpretation and design parameter
assessment• Stability evaluation of MSEW with specialized software• Internal and external stability checks• Appropriate geogrid application according to fill material
characteristics• Gabion walls layout in geometrically complex areas• Detailed design
Composite mechanically stabilized earth-wall with foundation support cross section
Complex Retaining Systems and StructuresElefsina – Korinthos – Patras – Pyrgos - TsakonaMotorway, Concession Project Central & Southern GreeceCentral & Southern Greece
ProjectDetailed designs for construction of retaining wall system withsingle or double pile-walls and application of permanentprestressed anchors for the secure execution of highwayworks in adverse geotechnical and geometrical areas
Construction CostTotal project’s cost: approx. € 9 m.
Retaining wall at geometrically adverse areas cross section
Existing ground level from Road Design
Λεπτομερής τοπογραφική απότύπωση από επιτόπου εργολάβο AW1D t il d t hi l b AW1 t tTotal length of complex retaining systems: ~1000m
Maximum height of retaining systems: 35 m
GeologyPliocene and Plio-pleistocene Marls, Conglomerates,Alternations of Marl-Conglomerates, Alluvial Deposits,Weathered slope materials, Sands, Gravels, Clay-Silts
Our Services
Κεφαλόδεσμος από οπλισμένο σκυρόδεμα C30/37διαστάσεων 1.35mX1.10m (πλάτος X ύψος)Pile Cap 1.35mX1.10m (width X height)with C30/37 reinforced concreteαπόστραγγιστική τάφρος
Dra inage trench
Πέτασμα οπλισμένου σκυροδέματοςC30 /37 στατικού πάχους 25cmFinal lin ing of reinforced concreteC30 /37, 25cm static thickness
Τοίχος προστασίας επίχωσηςαπό οπλισμένο σκυρόδεμα C30/37Protection wall o f backfillingwith C30/37 reinforced concrete
ΕπίχωσηBackfil
Detailed topographical survey by AW1 contractor
Μόνιμες περιφραγματικές απόστραγγιστικές οπές μήκους 10.0m,ονομαστικής διαμέτρου 3 '', ενδιαμέσως των πασσάλων, μεανωφερική κλίση 10°, με δύο απόστραγγιστικούς σωλήνες απόPVC (π.χ. διπλοί σωλήνες DURVINIL ), με υλικό φίλτρουαπότελούμενο από θερμοπλαστικές σφαίρες ή χαλαζιακή άμμο.Permanent double wall screen drainage holes, 10.0m long,nominal d iameter 3'', between the piles, with 10° minimum upwardinclination, consisting o f two concentric drainage PVC pipes (e.g.DURVINIL double wall screen), with filtering material which iscomposed by thermoplastic spheres or quartz sand.
Στραγγιστήριο με γεωύφασμα κα ι χονδρόκοκκουλικό σύμφωνα με παρ.38 της Τ.Σ.Υ.Drain from big size granu la r material coveredwith geotextile according to pa r. 38 of T.C.C.
Φρεατοπάσσαλο ι από οπλισμένο σκυρόδεμα C20/25διαστάσεων Ø1.0 0/1.50 m, μήκους 11 .00mBored piles Ø1.00/1.50m, length 11.00mwith C20/25 reinforced concrete
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Μόνιμα προεντεταμένα αγκύρια μήκους , αριθμού τενόντωνκαι φορτίου προέντασης ως σχετικό πίνακα.Εναλλάξ εφαρμογή κλίσης αγκυρίων 5° και 15° ανά πάσσαλο.P ermanent p re-stressed anchors with length, number ofstrands and p restressed load according to the relevant table.Varia tion of anchor inclination from 5° to 15° per pile.
SR
30L
Composite retaining system with prestressed anchors cross section
according to EC7• Assessment and determination of the seismic load
according to the area’s geotechnical profile• Detailed design
Clients• OLYMPIA JOINT VENTURE
(HOCHTIEF Construction AG - AKTOR S.A.)• AKTOR S.A.
Composite triple retaining system with prestressedanchors cross section
Highway General Excavation WorksEarthworks DesignsElefsina – Korinthos – Patras – Pyrgos - Tsakona Motorway, Concession Project, Central & Southern Greece
ProjectDetailed geotechnical earthwork designs in the Korinthos PatrasDetailed geotechnical earthwork designs in the Korinthos – Patrasstretch from C.P. 20 up to C.P. 80 (Cuts & Embankments)
Construction CostTotal project’s cost: approx. € 180 m.
Αγκύρωση μεταλλι κού πλέγματοςAnc hor i ng of t he s teel wire mesh net
10°
7. 44
Μόν ι μα αγκύρι α ολόσωμης πάκ τωσ ης , με τσιμεντένεμα σε όλο το μήκοςτους , φ έρουσας εφ ελκυσ τι κής ι κανότητας 250kN, B500c, Ø28, απόγαλβανι σμέ νο χάλυβα, μήκους 12. 00m , σε διάτρημα Ø3'', σε πεσσοειδήκάνναβο 2.0m x 2.0m, με κατωφερική κλίση 10°P erm anent soi l nai l s ful l y grouted, tensile bearing capacity 250kN,B 500c, Ø28, f rom gal vani s ed s teel , 12.00m length, in drill hole Ø3'', instaggered grid 2.0m x 2. 0m, at downward i nclination 10°
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Εφαρμογή εύκαμπτου τρι σ δι άσ τατου γεώπλεγματος ενισχυμένο με διπλής περιέλιξης,ατσάλ ι νο πλέγμα με βαρύ γαλβάνι σ μα (τύπου Gal fan), με ελάχιστη διάμμετρο 2.7mm,τύπου 8x 10 (ελάχι σ το άνοι γμα καννάβου D=8cm ), ελάχιστης εφελκυστικής αντοχής45kN/m, ή γ εωσ ύνθε του πλέγματος τύπου MACMAT R (R1 8127GN) ή αντίστοιχοA ppl i cat i on of rei nforced Geom at, wi th doubl e twisted, woven steel wire mesh with Galfanc oat i ng, wi re di ameter 2.7m m or m ore, type 8x10 (minimum mesh opening D=8cm), ofm i ni m um tensi l e st rength 45kN/m, or s teel reinforced geomat type MACMAT R (R18127GN) or equivalent
Εφ αρμογή εύκαμπτου τρι σ δι άσ τατου γ εώπλεγματος ενισχυμένο με διπλής περιέλιξης,ατσ άλι νο πλέγμα με βαρύ γαλβάνι σμα (τύπου Gal fan), με ελάχιστη διάμμετρο 2.7mm,τύπου 8x10 (ελάχι σ το άνοι γμα καννάβου D=8c m), ελάχιστης εφελκυστικής αντοχής45k N/m , ή γεωσύνθε του πλέγματος τύπου MA CMAT R (R1 8127GN) ή αντίστοιχοAppl i cat i on of rei nforc ed Geomat , wi th doubl e twisted, woven steel wire mesh with Galfan
Αγκύρωσ η μεταλλι κού πλέγματοςA nchori ng of the steel wire mesh net
Αποσ τραγγ ι σ τι κή τριγωνική τάφροςT ri angul ar drainage ditch
Τοπ ι κή εφαρμογή μόνι μων πε ρι φραγματικών απόστραγγιστικών οπώνμήκους 8.0m , ονομασ τι κής δι αμέ τρου 3'', σε κάνναβο 4.00mx4.00m, μεανωφερι κή κλί σ η 10°, με δύο απόσ τραγγιστικούς σωλήνες από PVC(π .χ . δι πλοί σωλήνες DURVINIL), εάν απαιτείταιLoc al appl i cat i on of permanent doubl e wall screen drainage holes, 8.0ml ong, nom i nal di am eter 3'', in grid 4.00mx 4.00m, w ith 10° mi ni mumupward i ncl i nat i on, consi s t i ng of two concentric drainage PVC pipes(e.g. DURV INIL doubl e wal l screen), if required
Μόνι μα προε ντε ταμέ να αγκύρι α μήκους, αριθμού τενόντωνκαι φ ορτί ου προέ ντασης ως σχετικό πίνακα.Εναλλάξ εφαρμογή κλί σ ης αγκυρίων 5° και 10°,σ ε κάνναβο 4.0m x 2. 0m (ύψος x μήκος)P erm anent pre-s t res sed anc hors with length, number ofs t rands and pres t res sed l oad ac cordi ng to the relevant table.V ari at i on of anc hor i ncl i nation from 5° to 10°, everys uccessi ve pre-s t ressed anchor,i n grid 4.0m x 2. 0m (hei ght x length)
5° ή/or 10°
Δοκός από οπλι σ μένο σκυρόδεμα C 30/37γι α τη σύνδεσ η των προε ντεταμένων αγκυρίων(Βλέπε σχέδι ο Λεπτομερειών 1OK F01323A- )Rei nf orced concrete beam C 30/37 for the connectionof the pre-st ressed anchors(S ee drawi ng of details 1OK F 01323A-)
2.50
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Project DescriptionTotal length of Excavation WorksCuts: 12,000mBare or partially reinforced embankments: 23,000 mOpen Cuts:• Slope layout and reinforcement of open cuts• Use of fully grouted permanent or prestressed anchors• Slopes with gradient 2:3~ 3:1• Maximum slope height: 12m
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Αύλακα αποσ τράγγι σης αναβαθμούB enc h drai nage trench
4. 50
Αγκύρωσ η μεταλλι κού πλέγματοςA nchori ng of the steel wire mesh net
2.50
10°
3.82
Μόνι μα αγκύρι α ολόσ ωμης πάκτωσης , με τσιμεντένεμα σε όλο το μήκοςτους , φέρουσ ας ε φελκυσ τι κής ι κανότητας 250kN, B500c, Ø28, απόγαλβανι σ μένο χάλυβα, μήκους 12.00m, σε διάτρημα Ø3'', σε πεσσοειδήκάνναβο 2.0m x 2.0m , με κατωφερική κλίση 10°Permanent soi l nai l s ful l y grouted, tensile bearing capacity 250kN,B500c , Ø28, f rom gal vani sed steel , 12.00m length, in drill hole Ø3'', inst aggered grid 2.0m x 2. 0m, at downward i nclination 10°
5.15
10°
2.00
coat i ng, wi re di am eter 2.7mm or more, t ype 8x10 (minimum mesh opening D=8cm), ofm i ni mum t ens i l e s t rength 45k N/m , or steel reinforced geomat type MACMAT R (R18127GN) or equivalent
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Τ οπι κή ε φαρμογή μόνι μων περι φραγματικών απόστραγγιστικών οπώνμήκους 8.0m , ονομασ τι κής δι αμέ τρου 3'', σε κάνναβο 4.00mx4.00m, μεανωφ ερι κή κλί σ η 10°, με δύο απόσ τραγγιστικούς σωλήνες από PVC(π .χ. δι πλοί σωλήνες DURVINIL), εάν απαιτείταιLocal appl i c at i on of permanent doubl e wall screen drainage holes, 8.0ml ong, nom i nal di am eter 3'', in grid 4.00mx4.00m , w ith 10° mi ni mumupward i ncl i nat i on, consi st i ng of two concentric drainage PVC pipes(e.g. DURVI NIL doubl e wal l screen), if required
Μόνι μα προεν τε ταμένα αγκύρι α μήκους, αριθμού τενόντωνκαι φορτί ου προέν τασ ης ως σχετικό πίνακα.Εναλλάξ ε φαρμογή κλ ί σ ης αγκυρίων 5° και 10°,σε κάνναβο 4.0 m x 2.0m (ύψος x μήκος)Permanent pre-st ress ed anchors with length, number ofst rands and prest ress ed l oad acc ordi ng to the relevant table.Vari at i on of anchor i ncl i nation from 5° to 10°, ev erysucces si v e pre-st ressed anchor,i n grid 4.0 m x 2.0m (hei ght x length)
Μόνι μα προεν τε ταμένα αγκύρι α μήκους, αριθμού τενόντωνκαι φορτί ου προέν τασ ης ως σχετικό πίνακα.Εναλλάξ ε φαρμογή κλ ί σ ης αγκυρίων 5° και 10°Permanent pre-st ress ed anchors with length, number ofst rands and prest ress ed l oad acc ordi ng to the relevant table.Vari at i on of anchor i ncl i nation from 5° to 10°, ev erysucces si v e pre-st ressed anchor
2:1
5° ή/or 10°
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2:1
Open cut with prestressed anchors and fully bonded permanent anchors cross section
• Maximum total cut height: 65mEmbankments:• Soil fill material• Bare or partially reinforced embankments with geogrids due to
seismic design• Modulation Geometry: one or double sided• Slopes with gradient 2:3• Deck width: 30m - 50m• Maximum height: 14m 4.00
M ε ταλλι κό πλέγμα τύπου Galfan8/2. 4 ή αναλόγουSt eel wi re mesh net Gal fan8/2.4 t ype or equivalent
Αγκύρωση μεταλλ ι κού πλέγματοςAnchori ng of t he s teel wire mesh net
Α γκύρωσ η μεταλλι κού πλέγματοςA nchoring of t he st eel wire mesh net
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Αγκύρωση μεταλλ ι κού πλέγματος με αγκύρια ολόσωμης πάκτωσης, μετσ ιμε ντένεμα σ ε όλο το μήκος τους, φέ ρουσας εφελκυστικής ικανότητας 200kN,B500c, Ø25, από γαλβανι σμένο χάλυβα, μήκους 3.00m, σε διάτρημα Ø3'', σεπε σσοε ιδή κάνναβο 2.5m x 2. 5m , με κατωφ ερική κλίση 10°Anchorage of t he st eel wi re m esh net wi th soil nails fully grouted, tensilebeari ng capaci t y 200kN, B 500c , Ø25, f rom galvanised steel, 3.00m length, indri l l hol e Ø3'', i n staggered grid 2.5m x 2.5m , at downward i nclination 10°
Τ οπ ική ε φαρμογή μόν ι μων πε ρι φραγματικών αποστραγγιστικών οπώνμήκους 6. 0m , ονομασ τικής δι αμέ τρου 3'', σε κάνναβο 2.0mx4.0m(ύψος x μήκος ), με ελάχι σ τη ανωφε ρική κλίση 6°, εάν απαιτείταιLocal appl i cat i on of perm anent doubl e wall screen drainage holes,6. 0m l ong, nom i nal di am et er 3'', i n a 2.0mx4.0m (height x length)pat t ern, wi t h 6° m i nim um upward inclination, if required
Αποσ τραγγ ισ τι κή τριγωνική τάφροςT ri angul ar drainage ditch
M ε ταλλ ι κό πλέ γμα τύπου Galfan8/ 2.4 ή αναλόγουSt eel w i re mesh net Gal fan8/ 2.4 type or equivalent
M εταλλ ι κό πλέ γμα τύπου Galfan8/ 2. 4 ή αναλόγουSt eel w i re mesh net Gal fan
Α γκύρωσ η με ταλλι κού πλέ γματος με αγκύρια ολόσωμης πάκτωσης, μετσ ι μεντέ νε μα σε όλο το μήκος τους , φέ ρουσας εφελκυστικής ικανότητας 200kN,B 500c , Ø25, από γαλβαν ισ μέ νο χάλυβα, μήκους 3.00m, σε διάτρημα Ø3'', σεπεσ σοε ι δή κάνναβο 2.5m x 2. 5m , με κατωφε ρι κή κλίση 10°A nchorage of t he s t eel w i re m esh net w i th soil nails fully grouted, tensilebearing capac i ty 200kN B500c Ø25 f rom galvanisedsteel 300m length in
Αγκύρωση με ταλλ ι κού πλέγματοςAnchori ng of the s teel wire mesh net
Τοπ ι κή ε φαρμογή μόνι μων πε ριφ ραγματικών αποστραγγιστικών οπώνμήκους 6. 0m , ονομασ τι κής διαμέ τρου 3'', σε κάνναβο 2.0mx4.0m(ύψος x μήκος), με ε λάχι σ τη ανωφε ρική κλίση 6°, εάν απαιτείταιLocal appl i cat i on of perm anent double wall screen drainage holes,6. 0m l ong, nom i nal di am et er 3'', i n a 2.0mx4.0m (height x length)patt ern, w i t h 6° m ini m um upward inclination, if required
Υφ ισ τάμενο φυσικό ανάγλυφοEx is t i ng ground level
Εκτοξ ευόμενο σ κυρόδε μα γι α την πλήρωση τωνκοι λοτήτων που δημι ουργούνται από υπερεσκαφέςή από τοπι κέ ς ασ τοχί ες (εάν απαιτείται)Guni t e f or t he f i l l i ng of cavities formed byoverexcavat i ons or l ocal f ailures (if required)
Our Services• Geotechnical interpretation and design parameter assessment• Geotechnical parameters optimization with slope stability back
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Τ α χαρακτηρισ τι κά της στρώσηςέ δρασης οδοσ τρωσ ί ας θα καθοριστούναπό τη σχε τι κή Μ ελέτη ΟδοστρωμάτωνT he charac t eri st i cs of the pavementbedding l ayer wi l l be determined by therelevant Pavement Design
Ενδε ι κτι κή δι αμόρφωση οδοποιίαςI ndi cat i ve roadway configuration
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Τοίχος αναχαί τι σ ης καταπτώσεωνRock s l i des int ercepting walls
8/ 2.4 t ype or equivalentbearing capac i ty 200kN, B500c, Ø25, f rom galvanised steel, 3.00m length, indri l l hol e Ø3'', i n staggered grid 2.5m x 2. 5m , at downward i nclination 10°
Αγκύρωση με ταλλι κού πλέ γματος με αγκύρια ολόσωμης πάκτωσης, μετσ ι μεν τέ νε μα σε όλο το μήκος τους , φέ ρουσας εφελκυστικής ικανότητας 200kN,B 500c , Ø25, από γαλβαν ισ μέ νο χάλυβα, μήκους 3.00m, σε διάτρημα Ø3'', σεπεσ σοε ι δή κάνναβο 2.5m x 2.5m, με κατωφερική κλίση 10°Anchorage of the s teel wi re m esh net w i th soil nails fully grouted, tensilebearing capac i ty 200kN, B500c, Ø25, f rom galvanised steel, 3.00m length, indri l l hol e Ø3'', i n staggered grid 2.5m x 2. 5m , at downward i nclination 10°
Α γκύρωσ η μεταλλ ικού πλέγματοςA nchoring of t he st eel wire mesh net
Τοπι κή εφ αρμογή μόνι μων περιφ ραγματικών αποστραγγιστικών οπώνμήκους 6. 0m , ονομασ τι κής διαμέτρου 3'', σε κάνναβο 2.0mx4.0m(ύψος x μήκος), με ε λάχι σ τη ανωφε ρική κλίση 6°, εάν απαιτείταιLocal appl i cati on of perm anent double wall screen drainage holes,6. 0m long, nom inal di am eter 3'', i n a 2.0mx4.0m (height x length)pat tern, wi th 6° m i ni m um upward inclination, if required
"Β λέ πε παρατήρηση No 19""S ee rem ark No 19"
High open cut with appropriate slope protection with anchored wire mesh cross section
analysis• Stability evaluation with specialized software• Appropriate geogrid application according to fill material
characteristics• Check and dimensioning of prestressed anchors according to EC7• Assessment and determination of the seismic load according to
the area’s geotechnical profile• Application of geocomposites for hydraulic erosion control as well
Project DescriptionProject DescriptionTotal length of excavation works:GU 10 ~ 14: 5,350m / GU 16 ~ 19: 6,050m / GU 24 ~ 25: 17,200m1. Embankments : soil fill or rock fill material
reinforced or loose with geogridsModulation geometry: one or double sidedReinforced slopes with gradient 2:1 ~ 2:3Deck width: 30m - 50 mMaximum Height: 11m
Geotechnical evaluation model
2. Open Cuts :Modulation and support of open cutsSlopes with gradient 2:3Maximum height: 10m
Our Services• Ground geotechnical interpretation report• Geotechnical drawings of longitudinal and cross sections• Detailed geotechnical design• Construction drawings
Construction Details1. Embankments :• Construction of drainage trenches at the foot of the slope
Embankment ‘s typical cross section
• Construction of drainage trenches at the foot of the slope• Construction of embankments with soil fill or rock fill materials• Foundation of the embankments with reinforced geogrids• Construction of support walls• Construction of embankments with severe gradient and gabion
facing• Foundation of the embankments with the use of piles2. Open Cuts:• Installation of anchors
Project DescriptionConstruction of retaining wall system with single or doubleconcrete cantilever pilewalls for the secure execution of
Excavations and the retaining system structure plan view
concrete cantilever pilewalls for the secure execution ofhighway works inside a landslided areaTotal length of pilewall system: ~300mMaximum height of pilewall system: 10mTotal slope height: 30m
GeologyThe bedrock of the landslide area includes ophiolite rocksThe overlying soil materials consist of a sequence of slidedmasses
Our Services – Design Details• Detailed design of permanent open cut• Geotechnical interpretation and design parameter
assessment• Special design and dimensioning of the pile system with
finite elements software• Specific load check of the retaining system from random
Foot-wall founded on conventional embankment in combination with EPS fill
Cross Section with double retaining wall pile series
p g ysliding surfaces
• Serviceability check of the retaining system• Assessment and determination of the landslided area’s
seismic load
ClientMALIAKOS KLEIDI CONSTRUCTION JV(HOCHTIEF - AKTOR – J&P AVAX – VINCI CGP – AEGEK –ATHENA)
ProjectBridge replacement by Embankment with lightweightmaterials (EPS) in combination with special protectionstructures for the protection of the central natural gas pipelineand the high speed railway line from Athens to Thessaloniki
C i CComposite embankment with conventional and lightweight
materials and protection structure for the natural gas pipeline
Construction CostTotal project’s cost: approx. € 18 m.
Project DescriptionCombination of conventional and lightweight embankment
Retaining wall founded on piles with EPS fill
Combination of conventional and lightweight embankmentwith EPS application for the protection of the central naturalgas pipeline and the high speed railway line from Athens toThessaloniki and optimization of the construction conditionsTotal embankment length: ~700mTotal lightweight embankment length: ~120mMaximum lightweight embankment height: 10-16mLightweight embankment slopes: 2:3 up to vertical
GeologyGeologyAlluvial deposits, silt-clay of low to medium plasticityBedrock formation from weathered layers of amphiboliticschist
Our Services – Design Details• Detailed geotechnical design• Geotechnical investigation and pile loading tests• Trial embankment monitoring for a 3-month time period
Foot-wall founded on conventional embankment in combination with EPS fill
g p• Technoeconomic design for minimizing construction cost• Geotechnical foundation design and optimization of the
protection structures of the central natural gas pipeline,the National Road and the high speed railway from Athensto Thessaloniki
• Structural and seismic protection design of theconventional and lightweight embankment
• Design of retaining wall for lightweight and conventionalembankment with mixed foundation on piles and slab
Project DescriptionMechanically stabilized earthwWalls with height 10 16mMechanically stabilized earthwWalls with height 10-16mconstructed by gabions as retaining walls or bridgeabutmentsTotal MSEW length: ~500mMaximum height: 10-16mMSEW slope: 85o up to vertical
assessment• Stability evaluation of MSEW with specialized software• Internal and External stability checks• Internal and External stability checks• Appropriate geogrid application according to fill
material characteristics• Gabion modulation in geometrically complex areas
ClientMALIAKOS KLEIDI CONSTRUCTION J/V(HOCHTIEF – AKTOR – J&P AVAX – VINCI CGP – AEGEK –ATHENA)
Project Description• Permanent one-sided and two-sided slopes of the u-turn
road in the entrance of Rapsomati tunnelLength of open cut: 314mMax. height: 25mModulation of left open cut slopes in 1 slope with gradient 1:1 (height: width)Modulation of right open cut slopes in 2 slopes with gradient 2:1 and intermediate benches
• One-sided open cut slope of the open road in the area of• One-sided open cut slope of the open road in the area of the exit of Rapsomati tunnelLength: 60mMax. height: 37mSlope modulation in 4 open cut slopes with gradient 2:1 with intermediate benches, 4m width
GeologyThin-bedded medium-bedded limestonesIntercalations of clayey schists red pelites and limestones
Open cut area view in Rapsomati tunnel exit
Intercalations of clayey schists, red pelites and limestones
Our Services• Detailed geotechnical design• Execution of geotechnical investigation program• Assessment of design geotechnical parameters• Geometric project design• Execution analysis of slopes stability• Technical report• Bill of Quantities, BudgetBill of Quantities, Budget
Construction Details• Installation of fully grounded rockbolts in combination with
reinforced connecting beams• Installation of prestressed anchors on the slopes at the
area of the exit of the Rapsomati tunnel• Surface protection of permanent slope with GEOBRUGG
grids, TECCO G65 type• Construction of perimetrical drainage trenches and
Project DescriptionLength: 100mMax. height: 40mModulation geometry:4 slopes with gradient 3:1 and intermediate4 slopes with gradient 3:1 and intermediatebenches with 4m width
Construction MethodMechanical excavation due to the vicinity with theexisting railway line
Geology• Brecciated limestones, in a seismically active
area• Steep morphology with loose limestone blocks,
probably unstable
Our Services• Detailed geotechnical design• Construction drawings
Construction DetailsTypical cross section • Elaboration of a special excavation method in
distinct phases with application of rockbolts inthe ground of each excavation phase
• Design of rockfall barriers• Protection wall and special barriers installed to
prevent rockfalls and to absorb kinetic energy,for the protection of the existing Railway Line
• Design of prestressed anchors for the supportof the permanent slopes
ProjectGeneral excavation works for the foundation of bridges
Construction CostTotal cost: approx. € 0,3 m.
Project ScheduleDesign: 2002Construction: 2002
Project DescriptionModulation of slopes of height up to 15m
Geology
Excavated slopes in the area of the foundation of G1 bridge
Blocky phyllites, sandstones and limestones
Our ServicesDetailed geotechnical design of excavation and support
Construction Details• Installation of prestressed anchors• Installation of geobrugg TECCO grids for the protectionagainst corrosion of the slopes and to prevent looseagainst corrosion of the slopes and to prevent loosematerial movement
Project DescriptionReinforced embankment with pre-constructedelementsModulation Geometry:Slopes with gradient 2:3Vertical slope of reinforced earth with height 10mLength: 180mWidth: 30mMax height: 38m
GeologyTravertine, loose soil materials
Embankment view during construction
Our Services• Detailed geotechnical design• Construction drawings
Construction Details• Embankment construction with travertine materials• Use of reinforced earth of VSL type constituted of
steel bars and pre-constructed concrete elementsEmbankment view after construction
p• Reinforced earth length 10m• Placement of reinforcements per 75cm
Project DescriptionTwo-sided soil embankment for the replacement ofa previous – failed embankmentModulation geometry:O l ith di t 1 3 ( t ti ) d View of the embankment failureOne slope with gradient 1:3 (upstream section) andwith gradient 2:3 (downstream section)Length: 90mWidth: 27mMax. height: 25m
Our Services• Detailed geotechnical design• Final geological and hydrogeological design• Evaluation of previous failure• Design of foundation works for the new
embankment• Design and support of the new embankment
Typical cross section after the failure rehabilitation
Construction Details• Embankment foundation in one row of piles
Ø1,00/1,30, with 16m length combined with capbeam, in the area of the failure surface
• Construction of a riprap layer of thickness 1,5m inthe embankment base for the drainage of thegroundwater
Project DescriptionRock fill embankmentModulation GeometrySlopes with gradient 2:3 of maximum height 20mwith intermediate bench with 4m widthLength: 141mWidth: 40mMax. height: 50m
GeologyAlterations of gneisses and mica schists
Our ServicesOur Services• Detailed geotechnical design• Construction drawings
Project Description• One-sided and two-sided embankments of highway
Length: 380mMax. height: 12mCrown width: 31mModulation of the embankment in 1 slope withgradient 2:3 (height: width)
• Widening of the existing embankment due to theconstruction of Megalopoli interchangeLength: 820mMax. height: 7mModulation of the embankment in 1 slope withgradient 2:3 (height: width)
Embankment construction works
GeologyMarls and sand marlsAlluvial flabellum
Our Services• Detailed geotechnical design• Geometric project design• Check of the embankment settlements and
l dEmbankment typical cross section
consolidations• Assessment of the embankment and open cut
stability• Technical description of works for the embankment
construction• Construction drawings• Technical report• Bill of Quantities, Budget
Project DescriptionD liti f l t il ll hi h d t f il Existing failure of the open cuts with material removal• Demolition of slope support pile wall, which due to failuremoved inside the road traffic sidewalk outline
• Design of 2 new pile walls of 80m length in combination withcap beam and wall construction at the face of the pile walls
• Data piles: Φ1,2 of 11m length up to 13m• Support of the existing slope in which was indicated in
Existing failure of the open cuts with material removal inside the road traffic sidewalk outline
p g• Design of support pile wall of 162m length in combination with
cap beam and wall construction at the face of pile walls.• Data piles: Φ1,2 of 12m length• Rehabilitation of the existing slope’s failure and modulation of
new geometrySlope length: 600mMax. slope height: 35mModulation of new geometry of slopes with gradient 1:2(height: width) 8m length with intermediate benches of 6m(height: width), 8m length with intermediate benches of 6mwidth
GeologyMarls, sand marlsClayey scree
Our Services• Detailed geotechnical design• Geometrical design of rehabilitation works
D i d di i i f t d t ti
Support pile wall construction
• Design and dimensioning of support and protection measures• Execution of stability analyses• Construction drawings• Bill of Quantities, Budget
Construction Details• Installation of rip rap behind the pile walls and the lower open
cut bench• Construction of drainage trenches over the slopes and wholes
ProjectJet grouting diaphragm wall, for the reduction of waterinflows in order to construct the foundations of M2 to M6piers of T10 bridge at Metsovitikos River
Project Descriptiond h ll h d l• Jet grouting diaphragmatic wall with secant ground piles
• Central diaphragm wall, with 3 rows ground piles• 4 additional diaphragm walls at the foundation areas of
the piers• Diameter: Ø 80, Length 10m-20m• Total walls length: 365m
Geology• Riverbed deposits (sands, breccia argillaceous materials)Riverbed deposits (sands, breccia argillaceous materials)• Conglomerates with high permeability• High river flood discharge• High groundwater table
Our ServicesDetailed geotechnical design
Construction DetailsD t ti f th t f th i b d
Jet grouting construction stages
• Dam construction for the arrangement of the riverbed• Rip - rap construction for the protection of the main
Our Services• Detailed design• Construction drawings of the retaining structures
Construction Details• Construction of 3 pile walls: 15m up to 29m
length with reinforced concrete piles Φ0,8 of totallength 6 8m in combination with cap beams oflength 6-8m, in combination with cap beams ofheight 1,1m and width 0,9m
• Installation of shotcrete over the piles surface• Construction of drainage wholes• Construction of 6 pumping shafts with cross