Repairs to area drains and allied infrastructure near 22 end of runway at INS Utkrosh under AGE I Central Sri Vijaya Puram

Amount

Spreading & levelling of earth /debris etc incl compacting with light roller etc for making haul road for approach to the site.

Demolition of old decayed weathered and PCC block masonry built in cement mortar etc and removal of the rubbish outside defence land

Demolition of old concrete as in copings and flooring etc of any description and in any position not otherwise specifically provided for

Rough excavation not exceeding 1.5 m deep and getting out MUD

Rough excavation not exceeding 1.5 m deep and getting out in soft / loose soil.

Material and Labour for making coffer arrangement over area drains of width nexc 2.0m and height nexc 1.5m with the help of PCC Blocks,HDPE sheets ,Bentonite duly supported with soil incl arrangement of pumping the darin water to bypass the portion of drain where repair works are under progress all as directed by Engineer-in-Charge

M & L for Forming embankments with soil including raising (or lowering) earth, spreading in layers n exc. 30 cm thick; watering, ramming/rolling and finishing to required size, shape, etc., n exc. 1.5 m high from base, complete all as specified and directed.

M & L for Forming embankments with soil including raising (or lowering) earth, spreading in layers n exc. 30 cm thick; watering, ramming/rolling and finishing to required size, shape, etc., exc. 1.5 m but n exc 3.00 m high from base, complete all as specified and directed.

M&L for Cement concrete type B2 1:2:4 using 40mm graded stone aggregate in foundations, filling and mass concrete, complete all as specified and directed.

Supply & laying in position of Drainage composite membrane made of high density polyethylene stabilized by carbon black with non woven geotextile working as separate filteration and protection layer TFI Techdrainage Composite TDC 55130 complete all as shown on drgs and as specified and directed by Engineer-In-Charge.

M&L for Providing & fixing in position at the site Gabion structure with Mechanically Woven Double Twisted Hexagonal Shaped Wire mesh Gabion Boxes as per IS 16014:2012,MORTH Clause 2500, of required size, Mesh Type 10x12(D=100 mm with tolerance of ±2%), Zinic+10% Al alloy+PVC coated, Mesh wire diameter 2.7/3.7mm (ID/OD), mechanically edged/ selvedged with partitions at every 1m interval and shall have minimum 10 numbers of openings per meter of mesh perpendicular to twist, tying with lacing wire of diameter 2.2/3.2mm(ID/OD). Note :- Filling of boulders shall be measured and paid for seprately.

M&L for Boulder filling dry, handpacked tightly, as in Gabbion Boxes (wire crate apron) etc of least dimension of 200 mm, all as shown on drgs all complete as per directions of Engineer -in-charge. Note :- Net Qty of filling will be arrived at after deduction of 30 % for voids

M&L PCC 1:4:8 type D-2 using 40mm graded stone aggregate as in foundation, filling and mass concrete complete all as specified and directed.

M & L for precast cement concrete block masonry with solid blocks of PCC 1:3:6 (using 20mm and 12.5 mm graded stone aggregate in the proportion as directed exc 10 cm in width and set and jointed in C M 1:6 complete all as specified and directed.

M&L PCC 1:2:4 type B0 using 12.5mm graded stone aggt as in coping complete all as specified & as directed.

M&L for rendering 10mm thick on fair face of block masonary in CM 1:4 and finishing even and smooth without using extra cement complete all as specified and directed.

M&L plain cement concrete 1:2:4 type B-2 (using 40mm graded stone aggregate) for surface channel including weathering slightly rounded or chamfered including formwork complete all as specified and directed.

P NAIDU (BID ID -3401442)

KBR CONSTRUCTIONS (BID ID -3401292)

M/s Ramesh Lal (BID ID -3401603)

M/s.Tarun Construction (BID ID -3401706)

OPS Associates (BID ID -3401544)