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Undisturbed samples of a silty-clay have been collected from a site. The tabulated results in Fig. 1.1 were obtained at failure in a series of consolidated-undrained (CU) tests (with pore water pres- sure measurement) on the samples. The cross-sectional area of the sample is 1210 mm² You are required to determine the values of the drained shear strength parameters of the soil c' and '. All-round cell pressure (kPa) Pore water pressure (kPa) Deviator stress (kPa) σ3 200 140 126 450 283 243 600 360 325 Figure 1.1: Results of a series of CU tests on silty-clay. In your summary of results, at a minimum you are to include the following: 1. A table containing values calculated from the results of the three tests, including a column for the additional axial load that must have been applied at failure for each test, and the principal stresses σ3, 01, 03, and σ. 2. A plot showing the Mohr's circles and strength envelope used to determine c' and '. On your plot clearly mark the principal stresses, c' and '. Ensure your plot is to scale, and labels specify what the x and y axes are. 3. Your reported c' and ' for the silty-clay.

Undisturbed samples of a silty-clay have been collected from a site. The tabulated results in Fig. 1.1 were obtained at failure in a series of consolidated-undrained (CU) tests (with pore water pres- sure measurement) on the samples. The cross-sectional area of the sample is 1210 mm² You are required to determine the values of the drained shear strength parameters of the soil c' and '. All-round cell pressure (kPa) Pore water pressure (kPa) Deviator stress (kPa) σ3 200 140 126 450 283 243 600 360 325 Figure 1.1: Results of a series of CU tests on silty-clay. In your summary of results, at a minimum you are to include the following: 1. A table containing values calculated from the results of the three tests, including a column for the additional axial load that must have been applied at failure for each test, and the principal stresses σ3, 01, 03, and σ. 2. A plot showing the Mohr's circles and strength envelope used to determine c' and '. On your plot clearly mark the principal stresses, c' and '. Ensure your plot is to scale, and labels specify what the x and y axes are. 3. Your reported c' and ' for the silty-clay.

Principles of Geotechnical Engineering (MindTap Course List)
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 12.6P
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Undisturbed samples of a silty-clay have been collected from a site. The tabulated results in Fig. 1.1 were obtained at failure in a series of consolidated-undrained (CU) tests (with pore water pres- sure measurement) on the samples. The cross-sectional area of the sample is 1210 mm² You are required to determine the values of the drained shear strength parameters of the soil c' and '. All-round cell pressure (kPa) Pore water pressure (kPa) Deviator stress (kPa) σ3 200 140 126 450 283 243 600 360 325 Figure 1.1: Results of a series of CU tests on silty-clay. In your summary of results, at a minimum you are to include the following: 1. A table containing values calculated from the results of the three tests, including a column for the additional axial load that must have been applied at failure for each test, and the principal stresses σ3, 01, 03, and σ. 2. A plot showing the Mohr's circles and strength envelope used to determine c' and '. On your plot clearly mark the principal stresses, c' and '. Ensure your plot is to scale, and labels specify what the x and y axes are. 3. Your reported c' and ' for the silty-clay.
Transcribed Image Text:Undisturbed samples of a silty-clay have been collected from a site. The tabulated results in Fig. 1.1 were obtained at failure in a series of consolidated-undrained (CU) tests (with pore water pres- sure measurement) on the samples. The cross-sectional area of the sample is 1210 mm² You are required to determine the values of the drained shear strength parameters of the soil c' and '. All-round cell pressure (kPa) Pore water pressure (kPa) Deviator stress (kPa) σ3 200 140 126 450 283 243 600 360 325 Figure 1.1: Results of a series of CU tests on silty-clay. In your summary of results, at a minimum you are to include the following: 1. A table containing values calculated from the results of the three tests, including a column for the additional axial load that must have been applied at failure for each test, and the principal stresses σ3, 01, 03, and σ. 2. A plot showing the Mohr's circles and strength envelope used to determine c' and '. On your plot clearly mark the principal stresses, c' and '. Ensure your plot is to scale, and labels specify what the x and y axes are. 3. Your reported c' and ' for the silty-clay.
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