C A Dam Shown In Figure Q1 C Retains 6m Of Water A Sheet Pile Wall On The Upstream Side Which Is To Reduce Seepage 1 (28.29 KiB) Viewed 37 times
c) A dam shown in Figure Q1 (C) retains 6m of water. A sheet pile wall on the upstream side (which is to reduce seepage under the dam) penetrates 4m into a 10m thick of silty sand stratum. Below the silty sand is a thick deposit of clay. Assume that the silty sand is homogeneous and isotropic. (1) (ii) Calculate q in cm/s. (2 marks) Analyze the pore water pressure distribution on the front of the sheet pile (at every 2m @ at points A, F and G). Given the Na of points A, F and G are 0.5, 1.5 and 3.0 respectively.
6 m 20 m *1.5m 1, B LE 1 F4m 1 1 10 m 1 1 1 1 1 1 Te=0.85 !G-2.67 Ik= 3 x 10 cm/s Impervious clay FIGURE Q1 (c)
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