A reinforced-earth retaining wall is to be 10 m high. The following data are given: 1.25 m; Backfill: unit weight, y₁ = 16 kN/m³; soil friction angle, d = 34° Reinforcement: vertical spacing, Sy = 1 m; horizontal spacing, SH width of reinforcement = 120 mm; f = 260 MN/m²; factor of safety against tie pullout = 3; factor of safety against tie breaking = 3 Determine: a. The required thickness of ties b. The required maximum length of ties Use Tieback Analysis and Revised standard Analysis or Coherent gravity wall hypothesis (1978). Assume a rate of 1 mil/year for a 50 years of life span. Control external stability of wall.
A reinforced-earth retaining wall is to be 10 m high. The following data are given: 1.25 m; Backfill: unit weight, y₁ = 16 kN/m³; soil friction angle, d = 34° Reinforcement: vertical spacing, Sy = 1 m; horizontal spacing, SH width of reinforcement = 120 mm; f = 260 MN/m²; factor of safety against tie pullout = 3; factor of safety against tie breaking = 3 Determine: a. The required thickness of ties b. The required maximum length of ties Use Tieback Analysis and Revised standard Analysis or Coherent gravity wall hypothesis (1978). Assume a rate of 1 mil/year for a 50 years of life span. Control external stability of wall.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A reinforced-earth retaining wall is to be 10 m high. The following data
are given:
Backfill: unit weight, y₁ = 16 kN/m³; soil friction angle, ₁ = 34°
d
Reinforcement: vertical spacing, Sy = 1 m; horizontal spacing, SH = 1.25 m;
width of reinforcement = 120 mm; f = 260 MN/m²;
factor of safety against tie pullout 3;
factor of safety against tie breaking = 3
Determine:
a. The required thickness of ties
b. The required maximum length of ties
Use Tieback Analysis and Revised standard Analysis or Coherent
gravity wall hypothesis (1978).
Assume a rate of 1 mil/year for a 50 years of life span.
Control external stability of wall.
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