--- Q2. Design a stone columns to reinforce 24 ft thick soft deposit of normally consolidated clay. Given that: for clay

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Q2 Design A Stone Columns To Reinforce 24 Ft Thick Soft Deposit Of Normally Consolidated Clay Given That For Clay 1 (69.83 KiB) Viewed 29 times

--- Q2. Design a stone columns to reinforce 24 ft thick soft deposit of normally consolidated clay. Given that: for clay: c=536 lb/ft?, C/(1+e.) = 0.17, y = 110 lb/ft?, Ysat 136 lb/ft?. For stone column: Q = 38°. Foundation pressure =8036 psf; foundation is 2.8 by 2.8 ft and is placed at 4 ft under the ground surface. The ground water table is at 6 ft below the ground surface. The stress increase due to loading at the center of clay layer 10 = 750 lb/ft?. Assume SF =1.8 (a) Find the qal of the stone column. If the all of the stone columns is less than the applied, what is your suggestions? (b) Find the settlement of the foundation, Sf (c) If it is required to reduce the settlement of the foundation to half by using stone column, what is the proposed diameter of stone column that can take the load safely?