The sand layer shown is 2.5m thick. Beneath the sand layer is a 1.8m thick clay layer, underneath the clay layer is a solid rock. Water table is at depth of 0.9 m below the ground surface. SAND: Ymoist= 23KN/m3 ; Ysat= 21KN/m3 CLAY: Ysat= 23 KN/m3 ; LL= 42% e=0.7 A.) Compute the overburden pressure at mid-clay layer. B.) Find the maximum surface pressure without exceeding a 139.5mm settlement in clay layer if it is assumed to be normally consolidated. C.) If surface pressure is 70kpa and pre-consolidation pressure is 80kpa, find the settlement in clay layer.
The sand layer shown is 2.5m thick. Beneath the sand layer is a 1.8m thick clay layer, underneath the clay layer is a solid rock. Water table is at depth of 0.9 m below the ground surface. SAND: Ymoist= 23KN/m3 ; Ysat= 21KN/m3 CLAY: Ysat= 23 KN/m3 ; LL= 42% e=0.7 A.) Compute the overburden pressure at mid-clay layer. B.) Find the maximum surface pressure without exceeding a 139.5mm settlement in clay layer if it is assumed to be normally consolidated. C.) If surface pressure is 70kpa and pre-consolidation pressure is 80kpa, find the settlement in clay layer.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The sand layer shown is 2.5m thick. Beneath the sand layer is a 1.8m thick clay layer, underneath the clay layer is a solid rock. Water table is at depth of 0.9 m below the ground surface.
SAND: Ymoist= 23KN/m3 ; Ysat= 21KN/m3
CLAY: Ysat= 23 KN/m3 ; LL= 42% e=0.7
A.) Compute the overburden pressure at mid-clay layer.
B.) Find the maximum surface pressure without exceeding a 139.5mm settlement in clay layer if it is assumed to be normally consolidated.
C.) If surface pressure is 70kpa and pre-consolidation pressure is 80kpa, find the settlement in clay layer.
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