To protect and Conservation of water in Kakkalur Eri by constructing sub structure foundation work with view point at Tiruvallur Block pac.03

1.To Protect & Conservation of water in Kakkalur Eri by Constructing Sub Structure foundation work with View Point.

Supplying and filling of conveyed earth with a lead of 1Km for basement filling complete as per relevent standard specification.

Removing Earth after Construction complete as per relevent standard specification.

Providing and driving in position permanet M.S liner including cost and conveyance to the site and fabrication charges and tools and plants and driving M.S 6mm thick liner to be left peramnently with the pile shaft as per the requirement and as per the specifications and placing from the bottom with all leads and lifts using 6mm M.S sheet etc., complete

Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel grills for all RCC works as per design given including cost of steel and G.I. binding wire in all floors etc. complete complying with standard specification. (Contractor has to make his own arrangements for the supply of steel and binding wire)

Reinforced cement concrete cast-in-situ bored piles of 600 mm diameter M-35 grade Design Mix using 20mm & 12mm ISS size graded HBG metal with minimum cement content of 400kg per cu.m maximum water cement ratio of 0.4 and slump of 150 - 200mm by tremie concreting including cost and conveyance of all materials to site and cement at site excluding cost and fabrication of steel including placing of reinforcement in position, concreting, including all labour charges for driving or boring, mobilisation of piling equipment and other accesssories required for driving the pile, cost of Bentonite solution and the temporary liners,chiselling and including forming of working platform over the river bed for accommodating piling eqipments including working platform, cost of test piles both initial and routine test for vertical loads and horizontal loads, forming approaches to the working platform, mixing concrete, filling it in position, compacting, cutting of pile head to cut off level for the casting the pile caps, including diversion of water course if necessary and all other incidental charges tec., complete as per standard specifications etc.,complete for PILES BELOW ABUTMENTS & PIERS.

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29 M height for plane surfaces as detailed below in all floors with all cross bracings using Mild Steel sheets of size 90 x 60 cm and 10 BG stiffened with welded Mild Steel angle of size 25mm x 25mm x 3 mm for boarding laid over silver oak joists of size 10cm x 6.50 cm spaced at abote 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc. complete complying with the standard specificaiton. (Payment for centering shall be given after the concrete is laid)

Providing and laying in position, Standardised Concrete mix M-35 Grade in accordance with IS 456-2000, using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement concrete 350kg/m3 and maximum water cement ratio of 0.5, including admixture (plasticiser / super plasticiser) in recommened proportion as per IS :9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5.0cu.m) 7730kg of 20mm machine crushed stone jelly and with about (3.3cu.m) 5156 kg of 10-12mm machine crushed stone jelly and wiht about (4.79cu.m) 7670 kg of M.Sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc and providing fixtures like fanc clams in the RCC floor/ roof slabs wherever necessary without claiming extra, etc, complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS standards .(No separate payment will be made by the Department for hte excess usage of materials).

GST Amount for providing Service to Government Contract Works for the above Construction & Maintenance Works. { GST Amount is the Total GST Amount for overall quoted amount (Both Construction and Maintenance) above this row in column "BB" for all works in this package} (Refer Clause 13.2 & 13.3 of Section 2 of Instruction to Bidders (ITB) of SBD)

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