New Construction of Manhole work at Pipeline arrangement work at Thiruveka Higher Secondary School in ward No.22

Construction of manholes using sulphate resistant cement at various depths to invert including earth work excavation asperSS20B, laying cement concrete in C.M.1:3:6 using 40mm B.G. jelly for foundation, sinking well kerb below G.L. for 4.5m depth and above, pumping, timbering charges for 2.5m depth and above, stock brick work in C.M.1:3, for 23cm thick wall and over 23cm thick wall, plastering interior with C.M.1:3, 20mm thick and exterior with C.M.1:3, 12mm thick, laying plain cement concrete 1:3:6 using 12.0mm to 20mm B.G. jelly fixing the frame, providing C.I. steps, manhole cover and frame etc. complete for the following sizes for each manhole (As per the type design drawing for manholes).Size 900 x 1200 mm 4.00m depth 1.50m Depth

2.00m depth

2.50m depth

Dewatering using 3HP to 70HP diesel engine pumpset including Hire charges, cost of Diesel, Engine oil, pump operator, labour charges, conveyance of pumpset and fuel to site and back, loading, unloading and any other incidental charges etc., complete. Hire charges for Diesel Pump set for 5 HP

Earth work excavation for foundation in Hard stiff clay, stiff black cotton, hard red earth, shales murram, gravel,stoney earth and earth mixed with small size boulders SS.20B and Sand, silt or other loose soil, wet sand,or silt not under water, light black cotton soil, sandy loam ordinary soil and to full depth as may be directed except in hardrock requiring blasting inclusive of shoring shuttering and baling out water and cleaning and levelling the site etc.,complete 10cum

Supply SALT GLAZED STONEWARE PIPE AS PER IS 651/2007 of 600MM length

Laying stoneware pipes and open joint withfillet in the infliltration gallery excluding cost of pipes but including charges of specialtools and plant etc., such as air compressor

Supply and Delivery of DWC Structured Wall Polyethylene Piping Systems (Pipe with online/offline coupler and elastomeric sealing ring) with required specials non-smooth external annular corrugated andsmooth internal surface (Doublewall) (SN 8 Class) for nonpressureundergroundsewerage, drainage applicationgenerally as per IS-16098

Lowering DWSC rigit pipes and specials to trench andlaying to proper grade and alignment jointing with PVC couplers with Cement paste

Refilling the trenches with excavated earth in layars of 25cm , thick well rammed including watering consolidation etc, complete