Details: construction of tube-well from ground levels to accommodate housing and assembly pipe of following sizes in all types of alluvium strata by percussion/ rotary drilling method and with gravel as per is:4097-1967 and packing as per is:2800 (part i -& ii) 1979 as amended upto date (the work includes the cost of gravel & its primary packing and packing during development, lowering of housing & strainer assembly pipes, with supply and wrapping of coir-rope, wherever necessary for arresting fine sand particles. the work will not include cost of housing pipe and strainer pipe assembly and development work, but work would be completed after obtaining sand free water). nominal bore 250 mm dia earth work in excavation in foundation, trenches etc. including dressing of sides and ramming of bottoms, including getting out the excavated material, refilling after laying pipe/ foundation and disposal of surplus excavated material at a lead upto 50m suitable site as per direction of engineer for follow
Sector: RDPR