What is the factor of safety of a slope behind a geomembrane-lined pond when it is empty if the soil fails under undrained conditions? The slope is 3H to 1V, 7.5-meters deep, and will be of the toe failure type (i.e., n = 1.0). The soil’s unconfined compressive strength is qu = 35 kN/m2 (note that qu = 2c) and its unit weight is 18 kN/m3. Show your work! **HINT: you will need to reference the figure below for your Ns value for “soils whose strength can be approximated by undrained conditions”. 0.19B = 53°0.18B = 45°0.17k = 330°0.1622.5°20.15 -0.140.13 -Case 10.12kHH.nHD0.11Case 2-0.10nH0.0913D + HHFigure 5.23 Stability curves for soils whose strength can be approximated byundrained conditions. (After Taylor [47])15°H^12 = $NIB = 7.5°k = 04)

A factor of safety is generally the load-carrying capacity of a system of soil what the system…

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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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What is the factor of safety of a slope behind a geomembrane-lined pond when it is empty if the soil fails under undrained conditions? The slope is 3H to 1V, 7.5-meters deep, and will be of the toe failure type (i.e., n = 1.0). The soil’s unconfined compressive strength is q_u = 35 kN/m² (note that q_u = 2c) and its unit weight is 18 kN/m³. Show your work!

**HINT: you will need to reference the figure below for your N_s value for “soils whose strength can be approximated by undrained conditions”.

0.19
B = 53°
0.18
B = 45°
0.17
k = 3
30°
0.16
22.5°
2
0.15 -
0.14
0.13 -
Case 1
0.12
kH
H.
nH
D
0.11
Case 2-
0.10
nH
0.09
1
3
D + H
H
Figure 5.23 Stability curves for soils whose strength can be approximated by
undrained conditions. (After Taylor [47])
15°
H^12 = $N
I
B = 7.5°
k = 0
4)

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