-
A water tank is to be constructed on the soil deposit shown in the figure below. A circular footing of diameter 3 m and depth of embedment 1m has been designed to support the tank. The total vertical load to be taken by the footing is 1500 kN. Assume the unit weight of water as 10 kN/m3 and the load dispersion pattern as 2V:1H. The expected settlement of the tank due to primary consolidation of the clay layer is ______mm.
-
- 52.12 mm
- 53.2 mm
- 50.6 mm
- 54.2 mm
Correct Option: B
53.236
Settlement,
| ∆H = | H0 | 1 + e0 |
| log |  |  | σ0 |
σ0 = (15 × 2) + (18 – 10) × 6 + (18 – 10) × 5
= 118 kN/m2
| ∆σ0 = | = 8.48kN/m2 | ||
| (3 + 6 + 6)2 | |||
| 4 | |||
| ∴ ∆H = | × 10 log10 | | | ||
| 1 + 0.7 | 118 |
= 0.0532 m
= 53.2 mm
