Please only solve 12.15 PLEASE EXPLAIN TO ME HOW TO FIND THE LOCATION OF THE RESULTANT, I don't know how to take the moment about the buttom for each area, please explain, thank you 12.13 through 12.15 A retaining wall is shown in Figure 12.44. For each problem,determine the Rankine active force, Pa, per unit length of the wall and thelocation of the resultant.HH₁Surcharge = qFrictionless wallProblem H12.1310 ft12.1420 ft12.156 mSand71SandY₂ (saturated unit weight)$2c₂=0↓ ↓ ↓H₁5 ft6 ft3 mGroundwater tableY1105 lb/ft³110 lb/ft³15.5 kN/m³Figure 12.44Y2122 lb/ft³126 lb/ft³19.0 kN/m³$₁ $2(deg) (deg)30 3034343036q0300 lb/ft³15 kN/m³

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Answered: 12.13 through 12.15 A retaining wall is…

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter13: Lateral Earth Pressure: At-rest, Rankine, And Coulomb

Section: Chapter Questions

Problem 13.17P

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Please only solve 12.15 PLEASE EXPLAIN TO ME HOW TO FIND THE LOCATION OF THE RESULTANT, I don't know how to take the moment about the buttom for each area, please explain, thank you

12.13 through 12.15 A retaining wall is shown in Figure 12.44. For each problem,
determine the Rankine active force, Pa, per unit length of the wall and the
location of the resultant.
H
H₁
Surcharge = q
Frictionless wall
Problem H
12.13
10 ft
12.14
20 ft
12.15
6 m
Sand
71
Sand
Y₂ (saturated unit weight)
$2
c₂=0
↓ ↓ ↓
H₁
5 ft
6 ft
3 m
Groundwater table
Y1
105 lb/ft³
110 lb/ft³
15.5 kN/m³
Figure 12.44
Y2
122 lb/ft³
126 lb/ft³
19.0 kN/m³
$₁ $2
(deg) (deg)
30 30
34
34
30
36
q
0
300 lb/ft³
15 kN/m³

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