DEPARTMENT FOR GEOTECHNICS AND SPECIAL STRUCTURES Laboratory for dynamics of soils and foundations University Ss. Cyril and Methodius in Skopje Institute.

DEPARTMENT FOR GEOTECHNICS AND SPECIAL STRUCTURESDEPARTMENT FOR GEOTECHNICS AND SPECIAL STRUCTURESLaboratory for dynamics of soils and foundationsLaboratory for dynamics of soils and foundations

University Ss. Cyril and Methodius in Skopje Institute of Earthquake Engineering and Engineering Seismology (UKIM-IZIIS) - Skopje

Associate professor Vlatko SESOV, Ph.DHead of Department

University Ss. Cyril and Methodius in SkopjeInstitute of Earthquake Engineering and Engineering Seismology (UKIM-IZIIS) - Skopje

University Ss. Cyril and Methodius in Skopje

Institute of Earthquake Engineering and Engineering Seismology (UKIM-IZIIS) - Skopje

2nd meeting of the European Forum for Disaster Risk Reduction (EFDRR) , 10 – 12 October 2011, Skopje

Department for GEOTECHNICS and SPECIAL STRUCTURESLaboratory for Dynamics of Soils and Foundations









CHAL

LEN

GES

TYPE of DISASTERSTYPE of DISASTERS

Man-Made DisastersMan-Made Disasters Natural DisastersNatural Disasters

₋Human activities₋Accidents₋Purposely ₋Can be avoided₋Can be controlled

₋Human activities₋Accidents₋Purposely ₋Can be avoided₋Can be controlled

₋Natural phenomena₋Some can be predict₋Some can not be predict₋Duration : seconds up to days ₋Can not be avoided₋Consequences can be controlled

₋Natural phenomena₋Some can be predict₋Some can not be predict₋Duration : seconds up to days ₋Can not be avoided₋Consequences can be controlled








MAN

-MAD

E D

ISAS

TERS

Inappropriate investigations - Inappropriate design !!

Inappropriate investigations - Inappropriate design !!








MAN

-MAD

E +

Nat

ural

DIS

ASTE

RS

DELAY WITH CONSTRUCTION WORKS !!

DELAY WITH CONSTRUCTION WORKS !!








NAT

URA

L D

ISAS

TERS

- LA

NSL

IDES

2004 MID NIIGATA EARTHQUAKE

LANDLSIDES – EARTHQUAKES !!

LANDLSIDES – EARTHQUAKES !!








NAT

URA

L D

ISAS

TERS

- LI

QU

EFAC

TIO

N

1964 NIIGATA EARTHQUAKE

October 19, 1999, Izmit Earthquake, Turkey

LIQUEFACTION – EARTHQUAKES !!

LIQUEFACTION – EARTHQUAKES !!




Geo

tech

nica

l eng

inee

ring

ok

Safe & stable structures

?

Department for Geotechnics and Special Structures


The

mai

n ac

tiviti

es

Education of master, doctoral students, and postdoctoral researchers in the field of earthquake geotechnical engineering

• Evaluation of local site effects on design parametersIn-situ investigation of ground conditionsSeismic site classificationLaboratory tests on dynamic behavior of soilsLiquefaction analysis

•Slope stability analysis – landslides potential

•Soil-Structure interactionFoundation of engineering structures in problematic soil conditionsEvaluation of the seismic stability of earth-fill dams

•Zonation of Geotechnical hazards (landslides, liquefaction...) (landslides, liquefaction...) - GIS application




LABO

RATO

RY

LABORATORY FOR DYNAMICS OF SOILS AND FOUNDATIONSLABORATORY FOR DYNAMICS OF SOILS AND FOUNDATIONS

TRIAXIAL APPARATUS INTEGRAL SOULTION – CONTROLS group, Italy – WF, UK

Main features

• K0 consolidation• Stress path testing• Static and dynamic triaxial tests• ± 5 kN cyclic loading• Up to 25 kN in shear• 0 – 70 Hz capacity• liquefaction of sands and silts• Natural and man-made seismic events

ASTM and BS compatible



LABO

RATO

RY


Direct Simple Shear Apparatus – (Dames & Moore, London), UK Sample sizeSample sizeTwo cylindrical samples, 61 mm diameter, 13 to 18 mm compacted height Soil TypesSoil TypesMeasurement of dynamic properties - any soil type can be tested. grain size should not exceed 1 mm. Shear Strain rangeShear Strain rangeFull scale range 1.27 mm with nominal resolution of 1 part in 104 . For sample height of 12.7 mm this corresponds to a maximum shear strain of =10-1.



RESE

ARCH

STU

DIE

S


Research project : Reduction of Liquefaction Hazard in Urban Areas - New Developments

Scientific Cooperation with Earthquake Engineering Research Institute, Dalian University of Technology, PR China

Research project : Mitigation of liquefaction potential – drain method Cooperation with Zenitaka Co. Tokyo, Japan

Research project : Spatial distribution on Seismic geotechnical hazards – general zoning using GIS ; Ministry of science and education , Republic of Macedonia

Research projects : Framework programme 7, European Commission, 2 projects

UREDITEME , SERIES



Coop

erati

on w

ith

indu

stry


Project Title: Seismic microzonation for newly planned dams in Slovenia

Summary: Extensive geophysical in-situ investigation, seismic hazard analysis, site-response analysis, spatial distribution of site amplification factors, recommendation for seismic design parameters.

EC8 - Type B

Site response spectra

Geophysical in-situ investigations

Laboratory experiments

Evaluation of the site seismic potential

Site response analysis

EC8 - Type B






EC8 - Type B








Coop

erati

on w

ith

indu

stry


Project Title: Laboratory Investigations For Development of Site Specific Material Curves For Soil Typologies Characteristic For Belene, Bulgaria, NPP Site

Summary : Laboratory Testing of soil samples – dynamic characteristics



Coop

erati

on w

ith

indu

stry


Project Title: Industrial complex Johnson Matthey Technological Industrial Development Zone (TIDZ) Bunardzik, Skopje - Determination Of The Seismic Potential For The Site””

Fig . 4 .2.Representative geodynam ic m odels

18 m

3 mV p = 300 m /sV s = 135 m /s

= 16 .0 kN /m 3

9 m

c la y

V p = 980 m /sV s = 385 m /s

= 18 .5 kN /m 3

V p = 1650 m /sV s = 650 m /s

= 20 .0 kN /m 3

c la y

c la y

V p = 2250 m /sV s = 950 m /s

= 22 .0 kN /m 3

c la y a n d sa n d

1 .5 m

5 m

5 m

5 m

1 .5 m

3 m

3 m

3 m

3 m

3

4

5

1

7

10

2

6

8

9

20 m

2 mV p = 310 m /sV s = 135 m /s

= 16 .0 kN /m 3

8 m

c la y

V p = 765 m /sV s = 325 m /s

= 18 .0 kN /m 3

V p = 1660 m /sV s = 680 m /s

= 20 .0 kN /m 3

c la y

c la y

V p = 2250 m /sV s = 950 m /s

= 22 .0 kN /m 3

c la y a n d sa n d

2 m

2 m

2 m

2 m

5 m

5 m

5 m

2 m

5 m

2

3

4

5

1

7

10

6

8

9

Ground Type B

vs,30=410 m/s



Coop

erati

on w

ith

indu

stry


Project Title: Consolidation of the Old Clock Tower, strengthening of the foundation structure

Summary: Technical solution, design and analysis of the improved model

‘ M a c e d o n i a n P i s a ’

Inclined Clock Tower - PrilepStrengthening of Foundation structure

‘‘Macedonian Pisa’Macedonian Pisa’Inclined Clock Tower - Prilep

Strengthening of Foundation structure



Coop

erati

on w

ith

indu

stry


Project : In-situ measurements of traffic vibration – Ring Road Skopje - Vibration during the construction process

Summary : Recommendations for influence of vibrations due to construction of highway in the vicinity of village houses.



Coop

erati

on w

ith

indu

stry


Project Title: Spatial distribution on Seismic geotechnical hazards – general zoning using GIS methodology



THE

END


CONGRATULATE 11 OCTOBER antifashist revolution of the Macedonian People , WW II

^ESTIT 11 OKTOMVRIDen na makedonskoto vostanie Vtora Svetska

Vojna

DEPARTMENT FOR GEOTECHNICS AND SPECIAL STRUCTURES Laboratory for dynamics of soils and foundations University Ss. Cyril and Methodius in Skopje Institute.

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