EBK PRINCIPLES OF GEOTECHNICAL ENGINEER
9th Edition
ISBN: 8220103611718
Author: SOBHAN
Publisher: CENGAGE L
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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
EBK PRINCIPLES OF GEOTECHNICAL ENGINEER
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- 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_forward2- Figure below shows a retaining wall that is restrained from yielding. Determine the magnitude of the lateral earth force per unit length for the following conditions: 1) At-rest force 2) Passive force Also, find the location of the resultant, 7, measured from the bottom of the wall. H (ft) H1 (ft) 71 (lb/fr) 72 (lb/ft³) p'ı q (lb/fr²) 10 5 90 122.4 34 26 100 Surcharge = q Sand c{ = 0 Groundwater table H Sand Y2 (saturated unit weight) có = 0 Frictionless wallarrow_forward
- UPVOTE WILL BE GIVEN. WRITE THE COMPLETE SOLUTIONS LEGIBLY. NO LONG EXPLANATION NEEDED. BOX THE FINAL ANSWER.arrow_forwardFigure Question 2 depicts the design of a gravity retaining wall for carthquake condition given: Kv-0 and Kh-0.37 What should be the weight of the wall for a zero-displacement condition? Use a factor of safety of 2.4. What should be the weight of the wall for an allowable displacement of 50.95 mm? Sand $:= 35° %3D Sand $=37 3. Figure Question 2 B Give a comprehensive detail on how to analyze a retaining wallarrow_forwardInvestigate the resistance of the wall, whose dimensions and floor properties are given in the figure, against overturning and sliding, based on the 1.5 safety factor. Note1: Evaluate as Pp-0. Note2: Take the kive k coefficients as 2/3. |g=150 kN/m² c=0, 0-30° Vosted 24 kN/m³ X=18 kN/m³ 6 1m 1m 0.5m 3marrow_forward
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