EBK PRINCIPLES OF FOUNDATION ENGINEERIN
8th Edition
ISBN: 8220100547058
Author: Das
Publisher: CENGAGE L
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Chapter 2, Problem 2.12P
To determine
Calculate the total stress, pore water pressure, and effective stress at A, B, C, and D.
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Q-2 For the soil profile shown in the figure below calculate and plot the total stress, pore water pressure and effective stress at points A, B, C and D. Give the following Data :
Problem 2
Plot the stress profile for total stress, effective stress, and pore water pressure. Show all calculation.
Diy sand
0.61
Saturated sand
0.48.
G-267
Clay
Refer to the soil profile shown in Figure 6.25. Given H1 = 4 meter and H2 = 3 meter. If the ground water table rises to 2 meter below the ground surface,what will be the net change in effective stress at the bottom of the claylayer?
Chapter 2 Solutions
EBK PRINCIPLES OF FOUNDATION ENGINEERIN
Ch. 2 - Prob. 2.1PCh. 2 - Prob. 2.2PCh. 2 - Prob. 2.3PCh. 2 - Prob. 2.4PCh. 2 - Prob. 2.5PCh. 2 - Prob. 2.6PCh. 2 - Prob. 2.7PCh. 2 - Prob. 2.8PCh. 2 - Prob. 2.9PCh. 2 - Prob. 2.10P
Ch. 2 - Prob. 2.11PCh. 2 - Prob. 2.12PCh. 2 - Prob. 2.13PCh. 2 - Prob. 2.14PCh. 2 - Prob. 2.15PCh. 2 - For a normally consolidated soil, the following is...Ch. 2 - Prob. 2.17PCh. 2 - Prob. 2.18PCh. 2 - Prob. 2.19PCh. 2 - Prob. 2.20PCh. 2 - Prob. 2.21PCh. 2 - Prob. 2.22PCh. 2 - Prob. 2.23PCh. 2 - Prob. 2.24PCh. 2 - Prob. 2.25PCh. 2 - Prob. 2.26PCh. 2 - Prob. 2.27P
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- A soil profile is shown in figure below. Calculate the following:a. Effective stress at point A in kPa.b. Effective stress at point B in kPa.c. Effective stress at point C in kPa.arrow_forwardThe diagram below shows a multi-layered soil, write an expression for the stress at each layer and the vertical total stress at depth z. (all symbols have their usual meaning)arrow_forwardCivil engineering question A sample of soil (0.2 m x 0.2 m) is subjected to forces as shown. Determine the principal stresses and the stresses oriented at 30 degrees counter clockwise from the major principal stress plane.arrow_forward
- Plot the stress profile for total stress, effective stress and pore water pressure. Show all calculation A Diy sand 0,61 2.66 41 Salurated sand, =0.48° 2.67 Clayarrow_forwardFor the stressed soil element shown below, determinea. Major Principal Stress in psi.b. Minor Principal Stress in psi.c. Normal Stress at Failure Plane AE in psi.d. Shear Stress at Failure Plane AE in psi.arrow_forwardCalculate and then plot the change in total stress, effective stress and pore water pressure with the plate for the soil layers shown in the figure below and according to the conditions: • There is no effect of capillary action • There is an effect of capillary action at a distance of 2m above the water level in the sandy layerarrow_forward
- Calculate and then plot the change in total stress, effective stress and pore water pressure with the plate for the soil layers shown in the figure below (no run-off)arrow_forward7. Figure 2 shows the Total Stress and Effective Stress Diagram of a soil profile Effective Stress (kN/m²) Total Stress (kN/m²) 100 100 Depth (m) 1 2 7 8 9 10 50 42 56 86 150 200 Depth (m) 1 2 3 4 7 8 9 10 50 42 56 66 94 150 200 154 Figure 2. Total stress and effective stress diagram a. Based on the diagram, what is the elevation of the groundwater table? b. If the unit weight of water is 10 kN/m^3, what is the unit weight of the saturated layer between 4 and 6 m deep? c. What are the impacts of rising and falling groundwater levels? Explain your answer and give some examples.arrow_forwardSolve the following problems. Provide complete solutions and summary of answers. The water table in soil deposit is 2 meters below the ground surface. The soil above the water table has a dry unit weight of 14.85 kN/cu. Meter. The saturated unit weight of the soil is 20.58 kN/cu.meter. Determine the following: a. Total Stress at a point 4.80 meters below the ground b. Total Pore pressure 4.80 meters below the ground c. Total effective stress at a point 4.80 meters below the ground.arrow_forward
- Problem # 3. The figure show a granular soil in the tank having downgrade seepage. The water level in the tank is held constant by adjusting the supply from the top and outflow at the bottom. a. Determine the total stress at the bottom.b. Find the pore or water pressure at the bottom.c. Compute the effective stress at the bottom.arrow_forward1. Calculate total stress, pore-water pressure and effective stress at location A. If the water table rises to ground surface level what will be the increase or decrease in effective stress at location A. Ground Surface 4 m 5m 6 m 3 = 1600 kg/m P₁= 3 P= 1750 kg/m sat 3 PF 800 kg/m sub A Sand Silty Sand Silty Clayarrow_forwardFigure 2 shows the zone of capillary rise within a clay layer above the groundwater table. Using: H1 = 3 m., H2 = 2 m., H3 = 4 m. a.What is the value of the total stress 9m below the ground surface in kPa? b.What is the value of the effective stress 5m below the ground surface in kPa? c.What is the value of the effective stress 9m below the ground surface in kPa?arrow_forward
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