Estimate for Construction of Pipe Escape Structure at RD 65970 of Nadampur Distributary.

Amount

Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with excavated surplus soil. In Ordinary soil Manual Means Depth upto 3 m

Plain/Reinforced cement concrete in sub-structure complete as per drawing and Technical SpecificationsRCC Grade M-30 Height upto 5m Using Batching Plant, Transit Mixer and Concrete Pump

Plain/Reinforced cement concrete in sub-structure complete as per drawing and Technical Specifications RCC Grade M20 Height upto 5m With Batching Plant, Transit Mixer and Concrete Pump

Supplying, fitting and placing HYSD bar reinforcement in substructure complete as per drawing and Technical Specifications

Cement concrete 1:3:6 with stone ballast or shingle mixing by mechanical means using concrete mixer volumetric type

Weaving wire netting for wire crates including binding sides and partitions to make crate of 15 cm x 15 cm or 25 cm x 7.5 cm mesh.

Filling stones or spalls into crates and hand packing

Tipping wire crates including equipment.

Proving & fixing ISI Marked Non-return valves flanged end class PN-1.0 as per IS:5312/2004 in pipe lines including jointing & cost of Nut Bolt , rubber insertion etc. complete. Note: If Non-return valves class PN-1.6 is used instead of class PN-1.0 , than 5% will be paid extra. Class PN-1.0 as per ISI with gun metal flap 500mm i/d Non-return valve

Providing, lowering in trenches to correct gradient and alignment, jointing with tyton rubber joint and cutting of reinforced cement concrete spigot and socketed pipes and specials with rubber ring ISI marekd as per IS code IS 458-2003 into trenches for all depths and laying out the same to correct alignment, gradients, levels etc. cutting of concrete beds and joints holes, supporting the pipes and specials in correct position in a suitable rigid manner while the same are being jointed and until the surrounding benchings, haunches and envelopes are completed. The pipes shall rest on the beds at all joints through their lengths and fixing of rubber ring, facing, testing the pipes for leakage and making good the same leakage and all defects to the entire satisfaction of the Engineer-in-charge including all cartage etc. R.C.C. Pipe NP -3, 600mm i/d pipe

AR CONTRACTORS