A rectangular foundation (8x6 ft) carrying an axial load of 350 Kips is constructed on the soil profile shown below. Determine: a) The total stress, effective stress, and pore water pressure at the top, middle, and bottom of the clay layer (Normally Consolidated) after a very long time b) The final consolidation settlement of the clay layer caused by construction of the foundation (Use the weighted average method) c) The settlement of the clay layer after 2 years d) The degree of consolidation at the middle of clay layer after 4 years e) How long it takes for the clay layer to reach 95% degree of consolidation?
A rectangular foundation (8x6 ft) carrying an axial load of 350 Kips is constructed on the soil profile shown below. Determine: a) The total stress, effective stress, and pore water pressure at the top, middle, and bottom of the clay layer (Normally Consolidated) after a very long time b) The final consolidation settlement of the clay layer caused by construction of the foundation (Use the weighted average method) c) The settlement of the clay layer after 2 years d) The degree of consolidation at the middle of clay layer after 4 years e) How long it takes for the clay layer to reach 95% degree of consolidation?
Principles of Foundation Engineering (MindTap Course List)
8th Edition
ISBN:9781305081550
Author:Braja M. Das
Publisher:Braja M. Das
Chapter8: Mat Foundations
Section: Chapter Questions
Problem 8.7P
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Transcribed Image Text:A rectangular foundation (8x6 ft) carrying an axial load of 350 Kips is
constructed on the soil profile
shown below. Determine:
a) The total stress, effective stress, and pore water pressure at the top,
middle, and bottom of the
clay layer (Normally Consolidated) after a very long time
b) The final consolidation settlement of the clay layer caused by construction
of the foundation (Use
the weighted average method)
c) The settlement of the clay layer after 2 years
d) The degree of consolidation at the middle of clay layer after 4 years
e) How long it takes for the clay layer to reach 95% degree of consolidation?
350 kips
5 ft
8 ft
dry sand
Ya-110 Pef
15 ft
Yuu-115 Pef
30 ft
Your-119 Pef
6 ft
GWT
sand
NC Clay
C-0.32;C-0.06
C.-4.5x10 cm²/sec
Coarse sand
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