soil strata can be described as 6 meters of sand underlain by 4 meters of clay with the water table located 7 meters from the bottom of said strata. The sand has a dry and saturated unit weight of 14 kN/m3 and 18 kN/m3 respectively. On the other hand, pertinent clay properties are saturated unit weight of 19 kN/m3, void ratio of 0.8 and liquid limit of 40. Compute the primary consolidation settlement considering the following conditions if uniform load of 100 kPa is acting on the soil. If necessary, assume a logical value of Cs. A. The clay is normally consolidated. B. The pre-consolidation pressure is 190 kN/m2 C. The pre-consolidation pressure is 170 kN/m2.

In a reclamation project, the middle of a clay layer is under an initial effective vertical stress of 200 kPa and initial void The clay is ratio (eo) of 0.90. overconsolidated with OCR of 1.4, compression index of 0.34 and expansion index of 0.07. With an applied load of 299 kPa, what will be the final void ratio (e1) for the clay?

The soil profile shown below is subjected to a uniformly distributed load (UDL) on ground surface of 600 kN/m². The underground soil consist of two normally consolidated clay (N.C.C.) layers, and between them one sand layer with properties as shown on the figure. If the ground water table is at the ground surface, and the (AP) assumed to be the same at both clay layers, Calculate the total consolidation settlement Sc from the two clay layer? assume compression index, Cc=0.007(LL-10). 4.0 m 3.0 m 2.0 m Clay Sand Clay AP=600 kN/m² W, 35%. LL-40%. G.-2.65 Ys at = 18 kN/m³ W, 40, LL=45%, G,-2.78 ▼ G.W.T

Two clay specimens A and B, of thickness 2cm and 3cm, have equilibrium voids rations 0.68 and 0.72 respectively under a pressure of 200 kN/m². If the equilibrium voids ratios of the two soils reduced to 0.50 and 0.62 respectively, when the pressure was increased to 400 kN/m2, find the ratio of the coefficients of permeability of the two specimens. The time required by the specimen A to reach 40 percent degree of consolidation is 14 of that required by specimen B for reaching 40% degree of consolidation? UNIT - 5