Annual Maintenance of Staff Quarters, Office and other Buildings at PNHZ Park, Darjeeling and its Subsidiary Units

Earth work in excavation of foundation trenches or drains in all sorts of soil (including mixed soil but excluding laterite or sand stone) including removing, spreading or stacking the spoils within a lead of 75m. as directed. The item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete.

(b) Depth of excavation additional depth beyond 1,500 mm. and up to 3,000 mm. but not requiring shoring.

Earth work in filling in foundation trenches or plinth with good earth in layers not exceeding 150 mm. including watering and ramming etc.layer by layer complete .(payment to be made on the basis of measurement of finished quantity of work).

(a) With earth obtained from excavation of foundation.

Laying 150 mm. to 200 mm. boulder soling including rough dressing hand packing and ramming down small pieces in the interstics including rolling and preparing the bed to proper level and filling up all joints with sandy clay or earth.

Cost of stone boulder 150 mm size delivered ans stacked at site.

(I) Cement concrete with graded stone ballast (40 mm size) excluding shuttering.In ground floor.

(B) With N.B variety stone metal.

(a) 1:3:6 proportion.

Rubble masonry in cement (1:6) with hard dressed stones from approved quarries and clean, coarse and washed sand including carriage of all materials to site