Question

P3/4/5

Problem 3 Plot the variation of total stress, pore water pressure, and effective stress with depth for the sand and clay layers shown in a figure below. Given: Hi-6m and H-4m. Dry sand 0.65 -2.66 Groand water table -0.9 G,-2.73 Problem 4 Refer to a figure below in which there is water seepage. Gven: H-1.5 t and H- 4.5 t h-1.75 f, and 122 Ib/t a. Calculate the total stress, pore watcr pressure, and effective stress at C(z-2 n) What is the upward seepage force per unit volume of soil (open) laflow Problem Refer to the figure in Problem 4. Given: H-1 mand H2- 2 m,h-1.2m For the soil, given e- 0.55 and Gs-2.68. Would boiling occur? Why

Answer 1

Answer 2

Effective stress 7.12 Plot the distribution of total stress, effective stress, and pore- water pressure with depth for the soil profile shown in Figure P712. Neglect capillary action and pore air pressure. 4.5 m e 0.7, S 0.85 GWL 5 m 28% 11,