Problem 1 A 4.5 m high retaining wall is supporting a horizontal backfill having a unit weight of 15.7 kN/m³ and a saturated unit weight of 19.3 kN/m³. Ground - water table is located 3 m below the ground surface. Drained friction angle for the backfill is 30°. The wall is restrained from yielding. The soil has an overconsolidated ratio of 2. a) Compute for the total force per unit length of wall for at rest condition. b) Compute for the location of the resultant force. c) Compute the moment at the base due to this force. d) If a surcharge of intensity 50 kPa is present on the ground surface, determine the total force per unit length of wall, still for at rest condition. q =50 kPa ground surface Y = 15.7 kN/m3 3m ▼ GWT 1.5m Ysat = 19.3 kN/m3

Problem 1 A 4.5 m high retaining wall is supporting a horizontal backfill having a unit weight of 15.7 kN/m³ and a saturated unit weight of 19.3 kN/m³. Ground - water table is located 3 m below the ground surface. Drained friction angle for the backfill is 30°. The wall is restrained from yielding. The soil has an overconsolidated ratio of 2. a) Compute for the total force per unit length of wall for at rest condition. b) Compute for the location of the resultant force. c) Compute the moment at the base due to this force. d) If a surcharge of intensity 50 kPa is present on the ground surface, determine the total force per unit length of wall, still for at rest condition. q =50 kPa ground surface Y = 15.7 kN/m3 3m ▼ GWT 1.5m Ysat = 19.3 kN/m3

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter13: Lateral Earth Pressure: At-rest, Rankine, And Coulomb

Section: Chapter Questions

Problem 13.21P

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