Geomechnics 2 Civl 462 Tutorial Sheet-1 Q.1: A clay has properties Cc = 0.4, Cr =0.05. Determine the final void ratio for the following situation: a. Initially σ ′ =50 kPa, e =1.2, σ ′ pc = 100 kPa, Finally σ ′ = 90 kPa b. Initially σ ′ =50 kPa, e =1.2, σ ′ pc = 100 kPa, Finally σ ′ = 190 kPa c. Initially σ ′ =50 kPa, e =1.2, σ ′ pc = 50 kPa, Finally σ ′ = 90 kPa Q.2: A stratum of normally consolidated clay 7m thick is located at a depth 12 m below ground level. The natural moisture content of the clay is 40.5 % and its liquid limit is 48%. The specific gravity of the solid particles is 2.76. The watertable is located at a depth 5 m below the ground surface. The soil is sand above the clay stratum. The submerged unit weight of the sand is 11 kN/m 3 and the same weight is 18 kN/m 3 above the water table. The average increase in pressure at the center of the clay stratum is 120kN/m 2 due to the weight of a building that will be constructed on the sand above the clay stratum. Estimate the expected settlement of the structure.
This is the end of the preview. Sign up
access the rest of the document.