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.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter15: Retaining Walls, Braced Cuts, And Sheet Pile Walls

Section: Chapter Questions

Problem 15.12P

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