Answered: 180 160 140 120 100 80 riator stress q…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Shear strength
Group Members:
180
160
140
120
100
80
60
40
• 45 kPa
• 90 kPa
20
• 135 kPa
2
4
6.
8
axial strain ɛ, ()
80
70
60
50
40
30
20
10
• 45 kPa • 90 kPa • 135 kPa
0.
2
4
8.
axial strain &, (%)
deviator stress q (kPa)
excess pore water pressure Au (kPa)

Transcribed Image Text:Refer to the triaxial shear test data in the handout to answer the following questions. You may work in groups of 2 to 3. a) What type of triaxial test was performed (CU, CD, or UU)? How can you tell? b) Samples of Soil 2 (see profile below) were obtained for the triaxial shear tests. Based on the results of the triaxial shear tests and the soil profile shown below, calculate the long- term shear strength of the soil at point A. 2 m Soil 1: Yt = 17.0 kN/m3 5 m (above GWT), Soil 1 Ysat = 19.0 kN/m3 (below GWT) 3 m Soil 2 6 m Soil 2 (Triaxial data): Ysat = 18.5 kN/m3 c) If the elevation of the groundwater table decreased to point B, how would that affect the long-term shear strength of the soil at point A? Quantify your answer. d) Would you recommend including cohesion in the shear strength value used for design? Why or why not?

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