SITUATION 1: A retaining wall 6 m high supports cohesionless soil having a dry density of 1600 kg/m3, angle of resistance 32° and void ratio of 0.68. The surface of the soil is horizontal and level with the top of the wall. Neglecting wall friction and using Rankine's formula for active pressure of a cohesionless soil. 1. Determine the nearest value of the total earth thrust on the wall in KN per lineal meter if the soil is dry. а. 73.1 c. 62.4 2. Find the nearest value of the thrust b. 86.8 d. 98.1 on the wall in KN per lineal meter if owing to inadequate drainage, it is waterlogged to a level of 3.5 m below the surface. b. 171 d. 153 а. 112 с. 147 3. Find at what height above the base of the wall the thrust acts during the waterlogged condition. a. 2.21 m c. 1.74 m b. 2.00 m d. 1.42 m
SITUATION 1: A retaining wall 6 m high supports cohesionless soil having a dry density of 1600 kg/m3, angle of resistance 32° and void ratio of 0.68. The surface of the soil is horizontal and level with the top of the wall. Neglecting wall friction and using Rankine's formula for active pressure of a cohesionless soil. 1. Determine the nearest value of the total earth thrust on the wall in KN per lineal meter if the soil is dry. а. 73.1 c. 62.4 2. Find the nearest value of the thrust b. 86.8 d. 98.1 on the wall in KN per lineal meter if owing to inadequate drainage, it is waterlogged to a level of 3.5 m below the surface. b. 171 d. 153 а. 112 с. 147 3. Find at what height above the base of the wall the thrust acts during the waterlogged condition. a. 2.21 m c. 1.74 m b. 2.00 m d. 1.42 m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:SITUATION 1:
A retaining wall 6 m high supports
cohesionless soil having a dry density
of 1600 kg/m3, angle of resistance 32°
and void ratio of 0.68. The surface of
the soil is horizontal and level with the
top of the wall. Neglecting wall friction
and using Rankine's formula for active
pressure of a cohesionless soil.
1. Determine the nearest value of the
total earth thrust on the wall in KN per
lineal meter if the soil is dry.
а. 73.1
c. 62.4
2. Find the nearest value of the thrust
b. 86.8
d. 98.1
on the wall in KN per lineal meter if
owing to inadequate drainage, it is
waterlogged to a level of 3.5 m below
the surface.
b. 171
d. 153
а. 112
с. 147
3. Find at what height above the base
of the wall the thrust acts during the
waterlogged condition.
a. 2.21 m
c. 1.74 m
b. 2.00 m
d. 1.42 m
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