A plan calls for a square foundation measuring 3 m 3 3 m supported by a layer of sand (see...
7.7 A plan calls for a square foundation measuring 3 m 3 3 m supported by a layer of sand (see Figure 7.5). Let Df 5 1.5 m, t 5 0.25 m, Eo 5 16,000 kN/m2, k 5 400 kN/m2/m, ms 5 0.3, H 5 20 m, Ef 5 15 3 106 kN/m2, and qo 5 150 kN/m2. Calculate the elastic settlement. Use Eq. (7.17).
7.8 Solve Problem 7.4 with Eq. (7.20). Ignore the correction factor for creep. For the unit weight of soil, use g 5 115 lb/ft3.
7.9 Solve Problem 7.8 using Eq. (7.29). Ignore the post-construction settlement.
7.10 A continuous foundation on a deposit of sand layer is shown in Figure P7.10 along with the variation of the cone penetration resistance qc. Assuming g 5 18 kN/m3 and creep is at the end of ten years after construction, calculate the elastic settlement of the foundation using the strain influence factor method. Use Eqs. (7.20) and (7.26).
7.11 Solve Problem 7.10 using Eqs. (7.29), (7.30), and (7.31).
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