Please explain ## Problem 3A reinforced earth retaining wall is to be 30 ft high. The backfill has a unit weight of 119 lb/ft³, and the soil friction angle is given as \( \phi = 34^\circ \).**Reinforcement Details:**- Vertical spacing, \( S_v = 3 \) ft- Horizontal spacing, \( S_H = 4 \) ft- Width of reinforcement = 4.75 in.- Tensile strength of reinforcement, \( f_v = 38,000 \) lb/in²- Coefficient of friction, \( \phi_\mu = 25^\circ \)- Factor of safety against tie pullout = 3- Factor of safety against tie breaking = 3**Determine:**a. The required thickness of tiesb. The required maximum length of ties---## Problem 4Assume in Problem 3 that the ties at all depths have a length of 45 ft. If the soil friction angle is 25 degrees and the unit weight is 116 lb/ft³ (for all soils other than the backfill soils), calculate the factor of safety against:(a) Overturning(b) Sliding

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A reinforced earth retaining wall is to be 30 ft high. Backfill: unit weight, 119 lb/ft°, for the soil friction angle, = 34°. Reinforcement: vertical spacing, Sy = 3 ft, horizontal spacing, S, = 4 ft, width of reinforcement = 4.75 in., f, = 38,000 lb/in², ø„ = 25°, factor of safety against tie pullout = 3, and factor of safety against tie breaking a. The required thickness of ties b. The required maximum length of ties %3D %3D 3. Determine: %3D

A reinforced earth retaining wall is to be 30 ft high. Backfill: unit weight, 119 lb/ft°, for the soil friction angle, = 34°. Reinforcement: vertical spacing, Sy = 3 ft, horizontal spacing, S, = 4 ft, width of reinforcement = 4.75 in., f, = 38,000 lb/in², ø„ = 25°, factor of safety against tie pullout = 3, and factor of safety against tie breaking a. The required thickness of ties b. The required maximum length of ties %3D %3D 3. Determine: %3D

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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