H.W: A layer of sand 5 meters deep overlies a thick bed of clay. calculate the vertical, horizontal, effective stresses and pore water pressure on horizontal planes to a depth of 9 meters below the ground surface in the following cases: a. If the water table is at the ground level. b. If the water table is at 2 meters below ground level and the sand above is dry. c. If the water table is at the top of the clay and the sand dry. For Sand: ysat=20.9 kN/m , ydry=17.4 kN/m For Clay: ysat=17.8 kN/m3 The coefficient of lateral earth pressure is 0.5. Ans: G.W.T Sand 2m 5m Ysat = 20.9 D GWT Dry Sand 5m Yat = 20.9 Sataraned Sand Ydry = 17.4 3m B B. GWT Clay Saturated Clay 4m Ysat = 17.8 Yzat = 17,8 Sanared Clay 4m 4m Ysat = 17. 8 Ov A=0.0, uA=0.0 Ov A=0.0, uA=0.0 o'A=0.0 o'A=0.0 Ov B=104.5 kN/m2 Ov B=87, uB=0.0 uB=49.05 kN/m2 o'B=87 o's=55.45 kN/m² Ov c=158.2 Ov c=175.7 kN/m² uc=39.24 uc=88.29 kN/m² o'c=118.96 o'c=87.41 kN/m2
H.W: A layer of sand 5 meters deep overlies a thick bed of clay. calculate the vertical, horizontal, effective stresses and pore water pressure on horizontal planes to a depth of 9 meters below the ground surface in the following cases: a. If the water table is at the ground level. b. If the water table is at 2 meters below ground level and the sand above is dry. c. If the water table is at the top of the clay and the sand dry. For Sand: ysat=20.9 kN/m , ydry=17.4 kN/m For Clay: ysat=17.8 kN/m3 The coefficient of lateral earth pressure is 0.5. Ans: G.W.T Sand 2m 5m Ysat = 20.9 D GWT Dry Sand 5m Yat = 20.9 Sataraned Sand Ydry = 17.4 3m B B. GWT Clay Saturated Clay 4m Ysat = 17.8 Yzat = 17,8 Sanared Clay 4m 4m Ysat = 17. 8 Ov A=0.0, uA=0.0 Ov A=0.0, uA=0.0 o'A=0.0 o'A=0.0 Ov B=104.5 kN/m2 Ov B=87, uB=0.0 uB=49.05 kN/m2 o'B=87 o's=55.45 kN/m² Ov c=158.2 Ov c=175.7 kN/m² uc=39.24 uc=88.29 kN/m² o'c=118.96 o'c=87.41 kN/m2
Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter10: Stresses In A Soil Mass
Section: Chapter Questions
Problem 10.13P: Repeat Problem 10.12 for q = 700 kN/m2, B = 8 m, and z = 4 m. In this case, point A is located below...
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