Problem 5: A 3.5m thick silt layer underlain by a 3m thick clay layer is shown in Figure. Calculate the total stress, pore water pressure, and effective stress at points A,B,C, D, and E. The water table is located 2.5m below the ground surface. The capillary rise in the silt layer is 1.5m. Assume that the silt layer has a degree of saturation S, = 60% in the zone of capillary rise. Silt G, 27 Ime0.6 S-0% Sut G,-27 0.6 Capillary Zone 1.5m S-60% Silt G,-27 e0.6 S- 100% Water Table Im Clay G,269 e0s07 3m S-100%

Problem 5: A 3.5m thick silt layer underlain by a 3m thick clay layer is shown in Figure. Calculate the total stress, pore water pressure, and effective stress at points A,B,C, D, and E. The water table is located 2.5m below the ground surface. The capillary rise in the silt layer is 1.5m. Assume that the silt layer has a degree of saturation S, = 60% in the zone of capillary rise. Silt G, 27 Ime0.6 S-0% Sut G,-27 0.6 Capillary Zone 1.5m S-60% Silt G,-27 e0.6 S- 100% Water Table Im Clay G,269 e0s07 3m S-100%

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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Question

100%

Geotechnical

Problem 5:
A 3.5m thick silt layer underlain by a 3m thick clay layer is shown in Figure. Calculate the total stress, pore water pressure, and
effective stress at points A,B,C, D, and E. The water table is located 2.5m below the ground surface. The capillary rise in the silt layer
is 1.5m. Assume that the silt layer has a degree of saturation S, = 60% in the zone of capillary rise.
Silt
G,-27
Ime0.6
S-0%
Sut
G,-27
15m 06
Capillary
Zone
S-60%
Silt
G,-27
Imle06
Water
Table
S-100%
Clay
G,269
S-100%

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