Construction of Multi Village Water Supply Scheme under Chabutra

Excavation in foundations and trenches (for pipes and pits in all depths etc.) in all lifts and in all kinds of soils such as pick work, jumper work, blasting in soft/hard rock, chiseling/wedging out of rock (where blasting is prohibited) soft / hard rocks and saturated soils, stacking the excavated earth within all leads and lifts, clear from the edge of excavation and then returning the stacked soil in 15 cm layers when required into plinths, sides of foundation and trenches etc., consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated earth as directed by Engineer-in-charge within all leads and lifts including uprooting of trees, dressing of beds and sides and preparation of sub-grade, restoration of unmetalled /metalled/paved surfaces to its original conditions including soring, strutting, timbering where ever required, providing diversion for traffic, fixing night signals, fixing caution boards, crossing over trenches for access to houses complete and to the entire satisfaction of the Engineer-in-charge.

Laying,jointing and testing of galvanized mild steel tube Plain ended / screwed and socketed in trenches including cost of fabrication of bends as required at site of following dia including tube fittings and to the entire satisfaction of the Engineer-in-charge as per IS:1239 (Part-I)-1979 complete in all respect. (Cost of excavation, in trenches to be measured and paid for separately).(Labour Rate)

100mm dia (M. C.)

Providing welding and fixing of MS flanges conforming to following tables as per IS 6392-1971 (Last with upto date amendments) and welding of MS flanges with GMS pipes in two layers on both faces i.e two layer on outer faces and one layer on inner face to make the joint leak proof (The cost of providing and laying of GMS pipes to be measured and paid for separately). The welding of flanges should conform to IS 816-1969 with electrodes as per IS: 814-1991 and required number of nuts and bolts conforming to IS 1364. the thickness of gasket not less than 3.00 mm conforming to IS 2712-1998. The work shall be done as per entire satisfaction of engineer in charge within all leads and lifts.

M.S flanges 100mm dia Table 28

Providing Circumferencial Butt welded joints and cutting by electrical welding (including gas cutting). to following dia GI pipe medium/heavy class, welded in requisite number of weld runs so as to achieve the minimum effective throat thickness of weld conforming to IS 816-1969 specifications, by using welding electrodesconforming to IS 814-1991, at site of work complete in all respects, including manual/machanical handling of pipes in all leads and lifts to the entire satisfaction of Engineer in charge

100mm dia