A triaxial test on a saturated soil has the ff. results: Deviator stress (kPa) 119 143 178 Cell pressure (kPa) 202 402 602 Pore pressure (kPa) 142.5 275.5 396 b. Determine the undrained angle of friction and cohesion of the soil. Determing the undrained angle of friction and cohesion of soil using Mohr's circle

A triaxial test on a saturated soil has the ff. results: Deviator stress (kPa) 119 143 178 Cell pressure (kPa) 202 402 602 Pore pressure (kPa) 142.5 275.5 396 b. Determine the undrained angle of friction and cohesion of the soil. Determing the undrained angle of friction and cohesion of soil using Mohr's circle

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter12: Shear Strength Of Soil

Section: Chapter Questions

Problem 12.18P

See similar textbooks

Similar questions

4. [Shear Strength] ( results: S) A triaxial shear test on saturdated soil has the following Cell Pressure (kPa) Deviator Stress (kPa) Pore Pressure (kPa) 132 265 200 109 400 135 550 170 380 Determine: a. Drained angle of internal friction of the soil b. Cohesion of the soil in drained condition
A sample of soil 50 mm in diameter was tested in direct shear. A normal force P was first applied to the sample and a direct shear force V was applied. The following combinations of P and V caused the specimen to exibit failure.P = 268 NP = 412 NV = 137 N V = 210 N Estimate the nearest value of angle of internal friction of the soil in degree choices A.36.88 ̊C.46.88 ̊B.26.88 ̊D.16.88 ̊ ,The nearest value of cohesion of the soil A.36.88 ̊C.46.88 ̊B.26.88 ̊D.16.88 ̊ & Nearest value of P in N if V=124N A.234 NC.342 NB.324 ND.243 N
2. SPT test was performed at a shallow site composed of uniform granular soil with a unit weight = 20 kN/m³ (shown below are N60). a) Convert to (N1)60. b) Estimate the range of friction angles at depths between 20 and 40 ft. Use various correlations. Compare the differences. SPT N-values (bpf) 10 20 30 40 50 10 Silty Sand (SM): Piedmont Residuum 30 40 50 60 Depth (feet)
A dilatometer test was conducted in a clay deposit. The groundwater table was locatedat a depth of 3 m below the surface. At a depth of 8 m below the surface, the contact pressure spod was 280 kN/m2 and the expansion stress sp1d was 350 kN/m2. Determinethe following:a. Coefficient of at-rest earth pressure, Kob. Overconsolidation ratio, OCRc. Modulus of elasticity, EsAssume s 9o at a depth of 8 m to be 95 kN/m2 and ms 5 0.35.
Subject: Soil Mechanics Please provide a solution and diagram An undisturbed soil sample, 100 mm in diameter and 200 mm high, was tested in a triaxial machine. The sample failed at an additional axial load of 3 kN with a vertical deformation of 20 mm. The failure plane was inclined at 50° to the horizontal and the cell pressure was 300 kN/m2, Determine, from Mohr’s circle, the cohesion in kPa. a. 125.6 b. 117.8 c. 91.3 d. 87.2
12. Complete this problem. Drained direct shear tests were conducted on three specimens of soil, each with a different effective stress: 39 kPa, 29 kPa, and 59 kPa. The data are shown on the right. 60 50 Use Excel to plot the critical state Mohr- Coulomb failure envelope, and a. 40 b. Determine the critical state strength parameters of the soil. 30 5 20 10 1 3 4. Shear displacement (mm) Shear stress (kPa)
1. A series of direct shear tests was performed on a soil sample. Each test was carried out until the specimen sheared (failed). The laboratory data for the tests are tabulated as follows Specimen No. Normal Stress (Kpa) Shearing Stress (Kpa) 1 200 450 400 520 3 600 590 4 1000 730 а. Compute the cohesion of soil b. Compute the angle of internal friction c. Compute the shear strength of the soil at a depth of 4 m. below the ground surface if it has a unit weight of 15.8 KN/cu.m
Problem 2: The following data were obtained in a direct shear test. ... 20 kPa Normal pressure .... Tangential Pressure Cohesion of soil 15 kPa 8 kPa Determine the following: a) Angle of internal friction, ø b) Compute the angle that the failure plane makes with the horizontal, 0. c) Compute the minimum principal stress. d) Compute the max. principal stress
4. [Shear Strength] results: A triaxial shear test on saturdated soil has the following Cell Pressure (kPa) Pore Pressure (kPa) Deviator Stress (kPa) 109 135 132 200 400 265 550 170 380 Determine: a. Drained angle of internal friction of the soil b. Cohesion of the soil in drained condition
SITUATION 5: A sand sample is subjected to direct shear testing at it's (in - situ) water content. Two tests are performed. For one of the tests, the sample shears at a stress of 400 kPa when the normal stress is 600 kPa. From these data, 15. Determine the value of the apparent cohesion. c. 230 kPa d. 221 kPa а. 100 kPa b. 179 КРа 16. Determine the corresponding angle of internal friction. a. 22.65 degrees b. 26.57 degrees c. 32.54 degrees d. 18.43 degrees
A laterally confined cylindrical specimen of saturated soil failed under an axial vertical stress of 100 kPa. The failure plane was inclined to the horizontal plane at an angle of 45°. The values of cohesion and angle of internal friction for the soil are respectively Lütfen birini seçin: O a. 0.5 N/mm2 and 30* O b. 0.2 N/mm2 and 0" O c.0.05 N/mm2 and 45* O d. 0.05 N/mm2 and 0
A vane shear test was performed on a clay layer using a vane with a diameter of 75.8 mm and a height of 151.6 mm. The vane was inserted to the total length of the vane (151.6 mm) but the top edge was exposed. The maximum moment required to rotate the vane was measured as 145 N·m. The liquid and plastic limits of the soil were 48 and 21, respectively. Determine the design undrained shear strength of the clay.