Problem 3: A normally consolidated clay stratum 10 m thick is located at a depth 15 m below ground level. The clay soil is overlain by a sandy stratum (the soil is sand above the clay stratum). The water table is located 10 m below the ground level. The submerged unit weight of the sand (Ysub) is 12 kN/m³ and the unit weight is 18 kN/m³ above the water table. The increase in pressure at the center of the clay stratum is 150 kN/m² due to the weight of a building. Estimate the expected ultimate settlement of the structure due to primary consolidation. Properties of the clay layer: Natural moisture content: 45% Liquid limit: 52% Specific gravity: 2.77 GL 10 m y= 18kN/m³ Sand 15 m Ysub = 12kN/m³ Clay 10 m
Problem 3: A normally consolidated clay stratum 10 m thick is located at a depth 15 m below ground level. The clay soil is overlain by a sandy stratum (the soil is sand above the clay stratum). The water table is located 10 m below the ground level. The submerged unit weight of the sand (Ysub) is 12 kN/m³ and the unit weight is 18 kN/m³ above the water table. The increase in pressure at the center of the clay stratum is 150 kN/m² due to the weight of a building. Estimate the expected ultimate settlement of the structure due to primary consolidation. Properties of the clay layer: Natural moisture content: 45% Liquid limit: 52% Specific gravity: 2.77 GL 10 m y= 18kN/m³ Sand 15 m Ysub = 12kN/m³ Clay 10 m
Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter9: In Situ Stresses
Section: Chapter Questions
Problem 9.12P
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Transcribed Image Text:Problem 3:
A normally consolidated clay stratum 10 m thick is located at a depth 15 m below ground level.
The clay soil is overlain by a sandy stratum (the soil is sand above the clay stratum). The water
table is located 10 m below the ground level. The submerged unit weight of the sand (Ysub) is 12
kN/m³ and the unit weight is 18 kN/m³ above the water table. The increase in pressure at the
center of the clay stratum is 150 kN/m² due to the weight of a building. Estimate the expected
ultimate settlement of the structure due to primary consolidation.
Properties of the clay layer:
Natural moisture content: 45% Liquid limit: 52% Specific gravity: 2.77
GL
10 m
y= 18kN/m³
Sand
15 m
Ysub = 12kN/m³
Clay
10 m
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