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 yield- ing. The soil has an overconsolidated ratio of 2. a) Compute for the total force per unit length of wall for active condition. b) Compute for the location of the resultant force. c) Compute the moment at the base due to this force.

Structural Analysis
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Chapter2: Loads On Structures
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Rankine Passive Earth Pressure

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 yield-
ing. The soil has an overconsolidated ratio of 2.
a) Compute for the total force per unit length of wall for active
condition.
b) Compute for the location of the resultant force.
c) Compute the moment at the base due to this force.
Transcribed Image Text: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 yield- ing. The soil has an overconsolidated ratio of 2. a) Compute for the total force per unit length of wall for active condition. b) Compute for the location of the resultant force. c) Compute the moment at the base due to this force.
y = 15.7 kN/m3
3m
▼ GWT
1.5m
Y = 19.3 kN/m3
Transcribed Image Text:y = 15.7 kN/m3 3m ▼ GWT 1.5m Y = 19.3 kN/m3
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