Find the magnitude of the lateral earth forces
Answer to Problem 13.1P
The magnitude of the lateral force is
The location of the resultant measured from the bottom of the wall is
Explanation of Solution
Given information:
The height (H) of the retaining wall is 7.5 m.
The soil friction angle
The angle of wall friction
The unit weight
The over-consolidation ratio (OCR) is 2.2.
Calculation:
Calculate the earth pressure coefficient
Substitute
Calculate the total force per unit length
Substitute
Thus, the magnitude of the lateral earth force per unit length
Calculate the location of the resultant
Substitute
Thus, the location of the resultant
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Chapter 13 Solutions
MindTap Engineering for Das/Sobhan's Principles of Geotechnical Engineering, SI Edition, 9th Edition, [Instant Access], 1 term (6 months)
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- A retaining wall is shown in Figure 13.41. For each problem, determine the Rankine active force, Pa, per unit length of the wall and the location of the resultant.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
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