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TAPI RIVERFRONT DEVELOPMENT

CIVIL ENGINEERING DEPARTMENT SARDAR VALLABHBHAI NATIONAL INSTITUTE OF TECHNOLOGY SURAT- 395007

COMPILED BY:

Jasdeep Singh (U08CE025);Saket Kumar Pandey (U08CE039) ; Mukesh Kumar Palsania(U08CE050) ; Anil Kumar Kannauzia (U08CE042);Vinay Khatri (U08CE040); Gopal Krishna Meena (U08CE018) ;Hemant Meena (U08CE020);Sunil Kumar Jareda (U08CE038);Sunil Kumar meena (U08CE013); Ramesh Chandra Choudary (U08CE063)

INDEX• INTRODUCTION• SITE INFORMATION• ORGANISATIONAL SET UP• TENDERING AND CONTRACTING PROCEDURE• WORK DETAIL : CONSRTUCTION OF GABION

WALL• TIME AND FINANCIAL SCHEDULING OF PROJECT• SUMMARY

Site Introduction

• SMC intends to develop the Tapi River Front in a comprehensive manner and address some the issues and turn it into an asset for the city

• As Surat is located very close to the point where Tapi meets the sea, the issue of flood management assumes crucial importance

• A preliminary concept plan to undertake a hydraulic feasibility study so as to analyze the impacts of embanks and possible reclamations.

• The Preliminary Conceptual Plan examined the existing land use, broad ownership pattern, heritage structures, slum encroachments, environmental issues and other activities along 45 km stretch on both sides of the river edge to provide an overall vision for Tapi Riverfront Development.

INTRODUCTION

FACILITIES

• Walkway• food plaza• cycle track• ground for public festivals• green garden and mini floral park• It will also have parking for over 2,200 four-

wheelers and 3,000 two-wheelers.

Site informationTOPIC :- “TAPI RIVER FRONT DEVELOPMENT” (TRFD)

Name Of Work : (From Vivekanand Bridge To weir Cum Causeway, On The West Bank Of River Tapi) Phase – I, Part-A

Name Of Contractor : Sheth Construction Co.

Estimated Cost : Rs. 13,53.18,180 Tender Cost : Rs. 14,00,40,785 (+3.49%) Authority : Stnd. Comn. Rso No-199/2012, Dt:-10/02/2011 Work Order : Dt. 14/02/2011 Time Limit : 12 Months (Excluding Monsoon)

FINANCIAL SCHEDULE:

• The stipulated project milestones as per CA are

• Milestone I: 100 days from the appointed date -10% of the total capital cost is expended

• Milestone II: 180 days from appointed date -35% of total capital cost is expended

• Milestone III: 310 days from appointed date- 70% of to total capital cost is expended

Divisional head equivalent to superetending engineer

Executive engineer departmental head

Deputy executive engineering

Assistant engineer Assistant architect

Supervisor (2) SMC ORGANISATIONAL SET UP

Tendering process(after prepare tenders)

Tender invite (e-tendering)

Opening a tech bid

Scruting a tender (as per qualifying criteria)

Open the price bid respect to prevailing market rates

Award the work

TENDERING AND CONTRACTING PROCEDURE

WORK DETAILCONSTRUCTION OF GABION WALL

• GABION are cages, cylinders, or boxes filled with soil or sand that are used in civil engineering, road building, and military applications• For erosion control caged riprap is used. For dams or foundation construction, cylindrical metal structures are used.• In a military context, earth or sand-filled gabions are used to protect artillery crews from enemy fire.•In civil engineering a gabion wall is a retaining wall made of rectangular containers (baskets) fabricated of thick galvanized wire, which are filled with stone and stacked on one another, usually in tiers that step back with the slope rather than vertically.•The most common civil engineering use of gabions is to stabilize shorelines or slopes against erosion. Other uses include retaining walls, temporary floodwalls, to filter silt from runoff, for small or temporary/permanent dams, river training, channel lining

Filling• Fill material must be as specified by the engineer. It must have suitable compressive strength and durability to resist the loading, as well as the effects of water and weathering.•Usually, 3 to 8-inch clean, hard stone is specified. A well graded stonefill increases density.

River Walling

•Where retaining structures are along water courses, the design must incorporate protection against under scour of the wall.•This can be achieved by founding the gabion wall below the anticipated depth of scour or by using a gabion mattress to provide a scour apron.•All river walling should have a geotextile membrane behind and below the wall. The depth of mattress is dependant on the flow velocity of the water and the soils type to the bed of the river.

River Walling

DIAGRAM FROM DESIGN CONSIDERATION

Specification of Gabions Specifications of corrosion protection are available :

Galvanised wire :- Zinc coating to BS729 (galvanised after welding 460g/sqm)Up to 5 years ago galvanising was one of the principle methods of wireprotection against corrosion. Galvanising is stable in the PH range 7 to 10, outside this range PVC coated gabions should be specified.Used for general applications where water quality is good and soils are within specified PH range. i.e retaining structures, sound walls and fresh water river protection schemes.Galvanising has generally been replaced with the recent alloy coating of 95%Zinc-5%Aluminium which has superior corrosion resistance

PVC-zinc coatingsPVC coating was introduced as a protection to the core wire where pure galvanised coatings would be subject to rapid corrosion i.e saline water conditions or where the PH of the soil is outside the stable zone for zinc (stable zone for zinc is PH 7 to10). It is also used where gabions are subject to salt spray (trunk roads and motorways). The PVC coating will give a life expectancy for the structure of up to 120 years providing that the PVC coating is not subjected to mechanical or chemical damage.PVC coatings are generally available in green or grey, HY-TEN use green for 2 reasons: •Light coloured PVC coatings are less resilient to UV degradation.•Green is an environmentally accepted colour.The PVC coating should be fusion bonded to the wire to prevent corrosion through capillary action. The term pressure bonding as applied to extruded coatings does not provide a true bond thereby enabling water ingress between the PVC coating and the core wire by capillary action

Equipment UsedLIST OF MAJOR CONSTRUCTION EQUIPMENT

1. Bulldozer

2. Wheel Loader

3. Hydraulic Excavator

4. Vibrator

5. JCB

6. Dumper

7. Mixer

8. Bar cutting machine

9. Trucks

COST OF EQUIPMENT

PURCHASING COST:• Excavator: CAT 320 C

excavator –3500000/- INR

• Bulldozer: (Caterpillar) 3000000/- INR.

• Backhoe loader (Volvo)-1800000/- INR.

HIRING RATE :

• Front end loader – 6000 per day.

• Hiring and running charge for crane (20 ton) – 8000 INR

Summary

By taking up this project for preparation of Site Report we got the chance of familiarise with various aspects of a civil engineering projects namely ::

Conceptualisation and Planning Tendering and Contracting Organisational set up of various agencies Project scheduling Execution methodology & Equipment Quality control The importance of scheduling, costing, estimation and time in a civil

engineering project.