The effective stress at an arbitrary depth below the Atlantic Ocean is 20,205 psf. The pore...
Problem 1 a) Make a scaled plot the variation of the effective stress (psf) with depth 15 b) Determine the effective vertical stress (psf) at a depth of 39 feet.. y dry-90. O PCF Y sat = 103. 4PCF y at 118.4 PC Stress calculation table round the values to the nearest w Powe Total Vertical Stress (ps) ole number Pore Pressure (psh Effective Vertical Stress o . Continue your work on the next page
DO QUESTION TWO ( 2 ) all parts
following table. Specimen Effective NormalShear Stress at Failure Stress (psf(psf) 500 1000 2000 385 750 1510 1. Interpretation of direct shear test results (7 pts) Plot the three data points (A, B, and C) and determine the effective stress friction angle, If you decide to perform another test with an effective normal stress of 1500 psf, what do you predict the shear stress at failure will be? a. for the soil. b....
Question 3: Calculate the total stress, effective stress, and pore water pressure at points A and B for the soil profile shown in Figure 2.0 below. Assume specifie gravity value as 2.70, void ratio as 0.7, degree of saturation as 0.85, and water content as 28% Point Load = 500 kN 2.0m GWT 4.5m OA 5.0m .B Figure 2.0 Question 4: If the groundwater in the figure 2.0 were (a) to drop 2m below the surface, (b) to rise 2...
Problem 3. What is the effective shearing resistance in psf at 40 ft depth on a vertical surface? Assume c -5 pst, ф'-32 deg, and unit weight of 125 pct. Assume completely submerged. OCR-1. Hint: use at rest earth pressure to transform vertical stress to lateral stress tan K. w62.4 pcf
For the soil strata, draw diagrams indicating the total stress, pore pressure and effective stress profiles to the bottom of clay layer. Fine sand has a thickness of 6 m (FST) with saturated unit weight of 18 kN/m2. Clay has a thickness of 8 m with saturated unit weight of 14 kN/m3 The water table is located at depth of 0.7 of fine sand thickness below the ground surface (i.e. depth=0.7*FST). Fine sand will sustain capillarity (suction). Assume the same...
3. A) Estimate the profiles of vertical effective stresses for the following problem from the ground surface to 4.5 m depth (same soil unit). B) What would happen to the effective stress profile if the ground water table rises to the level of the ground surface? Compute the corresponding vertical profiles of total stress, pore water pressure and effective stress. C) What would happen to the effective stress profile if the water table moves 4.5 m above the ground surface??...
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)...
use the figure below to calculate the effective stress at
point a
3. Use the figure below to calculate the effective stress at Point A (8 pts.) Clay lb 7 ft γ=95R ft3 Sand lb ft 3 3 ft lb ft3 3 ft density of water (62.4 pol)' depth stress density depth and pore pressure-
With reference to the soil
profile shown below, answer the following questions
Y=122 pcf, O'= 5° 10 ft Yat-110 pcf, 0 = 10° 10 ft 10 A Ya 113 pcf, 0 = 15° Bedrock A) What is the pore water pressure at Point B? (5 points) B) What is the total stress at Point B? (5 points) C) What is the effective stress at Point A? (5 points) D) What is the shear strength at Point A? (5 points)
6.19 Plot the distribution of total stress, effective stress, and porewater pressure with depth for the soil profile shown in Figure P6.19. Neglect capillary action and pore air pressure. sand30. GWL 5 ft w= 28% Figure P6.19