railway RRB JE (CBT I + CBT II) Mock Test 2024 Soil Mechanics and Foundation Engineering Bearing Capacity Deep Foundation
A group of nine piles 12 m long and 250 mm in diameter is arranged in a square form in clay having undrained cohesion of 30 kN/m2. Neglecting bearing at tip of the piles and taking adhesion factor as 0.9, ultimate capacity of all piles in individual action is:
1
2045 kN
2
2290 kN
3
2545 kN
4
2690 kN