In Problem 17.7 assume that the ties at all depths are the length determined in Part b.
Question:
In Problem 17.7 assume that the ties at all depths are the length determined in Part b. For the in situ soil, ϕ'2 = 25°, γ2 = 15.5 kN/m3, c'2 = 30 kN/m2. Calculate the factor of safety against (a) overturning, (b) sliding, and (c) bearing capacity failure.
Problem 17.7
A reinforced earth retaining wall (Figure 17.35) is to be 10 m high. Here,
Determine:
a. The required thickness of ties
b. The required maximum length of ties
Figure 17.35
Transcribed Image Text:
unit weight, y, = 16 kN/m³ and soil fric- tion angle, = 34° Backfill: Reinforcement: vertical spacing, Sy = 1 m; horizontal spacing, Sy = 1.25 m; width of rein- forcement = 120 mm; f, = 260 MN/m²; = 25°; factor of safety against tie pullout = 3; and factor of safety against tie breaking = 3
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Related Book For
Principles Of Foundation Engineering
ISBN: 9781337705028
9th Edition
Authors: Braja M. Das, Nagaratnam Sivakugan
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