Details: 4.1 earth work in excavation by mechanical means (hydraulic excavator )/ manual means in trenches of required width and gradient for laying and jointing of pipe line including excavation for sockets, and dressing of sides, ramming of bottoms, depth up to 1.5 mtr. including taking out the excavated soil, and then returning the soil as required in layers not exceeding 20cm in depth including consolidating each deposited layer by ramming, watering etc. and disposal of surplus excavated soil as directed within a lead of 50 mtr. including required all safety provisions etc.:all kinds of soil 4.5 dismantling of cement concrete pavement for pipe line and chambers by mechanical means using pneumatic tools, cutting the peripheral edge by cc cutter, breaking to pieces not exceeding 0.02 in volume and stock piling at designated locations and disposal of dismantled materials up to a lead of 1000 meters. measurement for dismantled trench to be made as per standard trench width specified in tend
Sector: Water supply and Sewerage