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Old_Homeworks_PartB

# Old_Homeworks_PartB - Middle East Technical University...

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1 Middle East Technical University Department of Civil Engineering CE 363 - Soil Mechanics PROBLEMS NOTE. Unless otherwise stated, take w = 10 kN/m 3 b) EFFECTIVE STRESS B1. A fine sand layer of 5 m thickness lies on a 5 m clay deposit. The water table is at the ground surface. Below the clay is a rock formation. Piezometers installed in the rock show an artesian pressure, piezometric level being 3 m above the ground surface. Unit weight of the sand is 18 kN/m 3 and that of the clay 20 kN/m 3 . Draw the total stress, effective stress, and pore water pressure diagrams. B2. In a fine sand deposit of 20 m thickness, the water table is 10 m below the surface and there is a 2 m capillary zone above the water table. The drained and saturated unit weights of the sand are 17 kN/m 3 and 20 kN/m 3 respectively. Determine the total stress, effective stress, and pore pressure at 5 m, 9 m, and 15 m depths from the ground surface. B3. A soil profile consists of 10 m of gravel overlying a clay layer of 3 m thickness, which in turn rests on a 3 m sand layer.

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Old_Homeworks_PartB - Middle East Technical University...

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