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3) (30) A circular oil tank is located as shown below The tank is filled with oil that weighs 8.50 kN/m3. The clay is normally consolidated Answer the following questions. a) What is the effective geostatic stress at point A (at the middle of the clay layer, below the center of the tank)? b) What is the induced stress at point A produced by the tank? c) By how much will the thickness of the clay change due to the induced stress? 20 m dia. 10 m 15 m Sand, 19 kN /nm Clay 10 mIIII Y 15 kN/m3 с.-0.20 Cr 0.02 eo-1.00 Gravel
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