Bengaluru Water Supply And Sewerage Board Tender

code04 - 3.0 to 4.50 Mtrs Depth

code05 - Providing and installing sheet piling for both sides of the trenches for following depths with mild steel sheets of not less than 6.5mm thick, stronger knife edge, recessed spreader sockets, 3 inch single or double wall shields, to be designed by the contractor to withstand all types of soils, maximum depth as per the approved design drawings, including labour charges for installing and removiing the sheet piling at various reaches of sewer line constructions, including loading, unloading, transporting to the suitable location etc. complete with all lead and lifts. (Measurement shall be taken for one side only eventhough it is provided for both sides). 3.00 Mtrs DEpth

code06 - Providing & laying in position Plain Cement Concrete of Mix 1:2:4 with OPC @ 240 Kgs, with 40mm & down size graded granite metal coarse aggregates @ 0.878 Cum & fine aggregates @ 0.459 cum machine mixed, concrete laid in layers not exceeding 15 Cms thick well compacted in foundation, including cost of all materials, Labour, HOM curing complete as per specifications

code07 - Providing S&S RCC SPUN / VIBRATED CAST PIPES (REINFORCED) pipes NP-3 Class conforming to IS:458-1988 with latest amentments using ordinary portland cement, for sanitary works and conveying to work site, rolling and lowering into trenches, laying true to line and level including loading and unloading at both destinations and jointing of pipes and specials, perfect linking of joints with jack to correct position including cost of jointing materials, i.e, rubber rings conforming to IS: 5382 for S&S RCC pipes, with all leads and lifts as directed and giving necessary hydraulic test as per ISS to the required pressure and commissioning etc. complete. (Contractor will make his own arrangements for procuring water for testing). Before the execution of the work, the contractor shall carry out the Survey. RCC NP3 class pipe of 300mm dia

code08 - Providing, bedding or backfilling using approved Stone Dust / Quarry dust of size not exceeding 5.6mm for the pipe line trenches including watering & consolidations etc., complete with all lead & lifts as per specifications & as directed by the Engineer incharge after obtaining the approval of the Chief Engineer.

code09 - Providing and constructing "WIRE CUT BRICK MACHINEHOLE CHAMBERS" using Portland/Pozzolana cement, conical in shape at top, with CC 1:3:6 foundation using 40mm and down size graded metal of approved quality and with an offset of 0.15M alround the chamber Construct Brick masonry in CM 1:4, 340 mm thick, with wirecut bricks of approved quality, plaster inside and out side with CM 1:3, 12mm thick, except for the conical surface outside where the plaster thickness shall be 20mm. Slope inside to be 1:6 in the concrete towards central drain and finished smooth. Fixing of pipes in CC 1:2:4 with graded metal of 20mm and down size. Providing and fixing SFRC Machinehole frame and cover (Heavy Duty) conforming to IS:12592 with latest amendment, in CC 1:2:4. Providing and fixing footsteps made of 12mm dia. steel bars (Fe-500) with 3mm thick plastic encapsulation (IS-10910). The footsteps shall be fixed 30cms apart and on CC block embeded to masonry wall. The whole works include watering, curing, barricading, danger lighting, pouring tar over MH frame and cover, cost of tar, shoring, strutting, de-watering, engraving Machinehole number with flow direction on the inner conical surface etc. as per the drawing etc. as per technical specifications and for the following diameters and depth etc. for 1.50 Mtrs Internal dia. Constructing Brick Masonry Circular MH's 1.50 Mtrs Internal dia & 1.00 Mtrs Depth including SFRC F & C

code10 - For Every 0.10 Mtrs Additional

code11 - Constructing Brick Masonry Circular MH's 1.50 Mtrs Internal dia & 3.00 Mtrs Depth including SFRC F & C

code12 - For Every 0.10 Mtrs Additional

code13 - Constructing Brick Masonry Circular MH's 1.50 Mtrs Internal dia & 2.00 Mtrs Depth including SFRC F & C

code14 - For Every 0.10 Mtrs Additional

code15 - Refilling available earth around trenches/pipelines, cables in layers not exceeding 20 cms in depth, compacting each deposited layer by ramming after watering with a lead upto 50m, and lift upto 1.50m, Including cost of all labour complete as per specifications .

code16 - Providing, bedding for the pipeline trenches in black cotton & rock reaches including watering & consolidation by punners etc., complete with all lead & lifts with

code17 - Wet Mix Macadam (Plant Mix Method):Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specifications including premixing the Materials with water at OMC in Mechanical Mix Plant carriage of Mixed Materials by tipper to site, laying in Uniform layeras with Paver in Sub base / Base course on well prepared surface & compacting with Vibratory roller to achieve the desired density complete as per Specifications MORTH Specifications

code18 - Disposal off the Excess excavated Earth of all types by vehicle including loading, Unloading with all lead & Lifts, Labour, HOM of Machinaries etc., upto 10 Kms