Details: boring with tractor mounted auger drilling machine, providing and installing cast in situ double under reamed piles of specific diameter and length below pile cap in specified grade of cement concrete, to carry a safe working load not less than specified, excluding the cost of steel reinforcement and specified grade of concrete but including the cost of boring and the length of the pile to be embedded in pile cap etc. all complete. (length of pile for payment shall be measured upto to the bottom of pile cap) : 300 mm dia & 4.5 m deep piles extra over single under ream for providing additional bulbs in under reamed piles, under specified diameter(only the nos. of extra bulbs are to be paid) providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - all work up to plinth level1:1.5:3 (1 cement : 1.5 coarse sand (zone-lll) derived from natural sources : 3 graded stone aggregate 20 mm nominal s
Sector: Airport