Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781305970939
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
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Question
Chapter 14, Problem 14.13P
To determine
Find the active thrust
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For the cantilever retaining wall shown in Figure P13.1, let the following data be given:
Wall dimensions:
H = 8m
x₁ = 0.40m
x₂ = 0.60m
Soil properties:
Y₁ = 16.80kN/m³
Y2 = 17.60kN/m³
c=0
x3 = 1.50m
x₁ = 3.50m
x = 0.96m
$₁ = 32°
$½ = = 28°
Figure P13.1
a. Calculate the factor of safety with respect to overturning.
b. Calculate the factor of safety with respect to sliding.
c. The magnitude of the pressure on the base at the toe.
d. The magnitude of the pressure on the base at the heel.
D = 1.75m
a = 10°
C₂' = 30kN/m²
Use the Yconcrete = 23.58kN/m³. Also, use k₁=k₂ = 2/3 which are the factor to calculate for p' and
Ca-
Read the question carefully and give me right solution according to the question.
Consider a retaining wall supporting a fill-soil as shown in the figure. The wall is moving from right to left.
q=15kN.m2
0.5m
Yconcrete=24kN.m
Y1=16KN.m
01=32°
Cz=0
3.5m
P1
n=16KN.m
P2
01=32°
0.5m
C==0
[0.5m.
1m
1m
1m
(a) Compute the active force P, and on the wall and its location.
(b) Compute the passive force P2 on the wall.
(c) Analyze the factor of safety against sliding.
Chapter 14 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
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- Answer letter darrow_forwardH.W. 2: What is the total active force/unit width of wall and what is the location of the resultant for the system shown in Fig.? Use the Coulomb equations and take a smooth wall so S=0° 7.0 m 9-100APX = 37 -16.5 EN³ =V 7-19.25 Sol L Sall 1 T 30.3 kPa 107.3 KN 131 EN $2.5 183.8 R=40.5LN EN LOMI 17.3 18arrow_forwardConsidering the effects of the construction process, calculate the displacements verticals for the confined masonry wall shown. Suppose: Columns: 0.15 x 0.15 m Ec = 2,000,000 ton/m2 Masonry: 0.15 x 2.00 m cloths Ea= 500,000 ton/m2 Pi = permanent charges per level (ton) RESULTS 20m 20 x 81 = 0.0003161 82 = 0.0004023 83 = 0.0002586 2.5 P3 = 15 ton P2 = 20 ton 2.5 m P1 = 20 ton 2.5arrow_forward
- Subject : Geotechnical Engineering Give me right solution according to the questionarrow_forwardPlease solve and provide answerarrow_forwardGiven: wall shown in figure Required: maximum height of the wall (H) to gives Fs), jiding - 1.5 0.5 m C= 0 O = 30 y = 18 kN/m yc = 24 kN/m? 0.5 m 4.5 m Ca = 20 kPa 8 =25arrow_forward
- arjumo Но |ha PA r Figure 1 calculaisarrow_forwardI got 3.475 for my y bar. Could I have someone confirm what this or challenge this?arrow_forwardRefer to Figure 12.3a. Given: H = 12 ft, q = 0, γ = 108 lb/ft3, c' = 0, and Φ' = 30º. Determine the at-rest lateral earth force per foot length of the wall. Also, find the location of the resultant. Use Eq. (12.4) and OCR = 2.arrow_forward
- You are working for a consulting firm that has been asked to evaluate the factor of safety of the wall shown in the figure supported by a well-degraded sand. The resultant load behind the concrete wall acts at the one third point. Dw 1m 1.5 m 24 kN/m³ y = 20 kN/m³ 26.5 kN/m 24° = 34° n = 0.4 3 m (a) Determine the factor of safety if Dw − D > 1.5B. Ignore the lateral passive resistance due to the soil in front of the wall. (b) Determine the factor of safety if the ground water table rises to 0.5 m below the base of the wall. Discuss the significance of your observations.arrow_forward13. Provide a detailed step by step solution.arrow_forwardDetermine I, for the thin-walled sections shown in Figures 8.9(a) to 8.9(c), where the wall thicknesses are 0.01 m. 8.5 Dimensions are in metres. I second moment of area about a horizontal axis passing through the centroid. NB 0.15 02 0.15 0.1 (a) (b) (c) Figure 8.9 Thin-walled sections.arrow_forward
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