A retaining wall 8m supports a cohesionless soil having a dry density of 1600 kg/m3, angle of shearing resistance is 32 and void ratio of 0.68. The surface of the soil is horizontal and level with the top of the wall. Neglect wall friction and use Rankine’s formula for active pressure of a cohensionless soil. 1. Determine the nearest value of the total earth thrust on the wall in kN/m if the soil is dry. a. 154.24 kN b. 162.4 kN c. 174.3 kN d. 175.72 kN 2. Determine the thrust on the wall in kN per linear meter during a rainfall if wall drainage is clogged at 3.5 m below the ground surface. Use the dry unit weight of soil above the water surface. a. 235.440 kN b. 182.567 kN c. 135.881 kN d. 108.765 kN 3 Determine the thrust on the wall in kN per linear meter during a rainfall if wall drainage is fully clogged for entire wall height. a. 594.453 kN b. 682.567 kN c. 435.881 kN d. 629.760 kN

A retaining wall 8m supports a cohesionless soil having a dry density of 1600 kg/m3, angle of shearing resistance is 32 and void ratio of 0.68. The surface of the soil is horizontal and level with the top of the wall. Neglect wall friction and use Rankine’s formula for active pressure of a cohensionless soil. 1. Determine the nearest value of the total earth thrust on the wall in kN/m if the soil is dry. a. 154.24 kN b. 162.4 kN c. 174.3 kN d. 175.72 kN 2. Determine the thrust on the wall in kN per linear meter during a rainfall if wall drainage is clogged at 3.5 m below the ground surface. Use the dry unit weight of soil above the water surface. a. 235.440 kN b. 182.567 kN c. 135.881 kN d. 108.765 kN 3 Determine the thrust on the wall in kN per linear meter during a rainfall if wall drainage is fully clogged for entire wall height. a. 594.453 kN b. 682.567 kN c. 435.881 kN d. 629.760 kN

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter16: Lateral Earth Pressure

Section: Chapter Questions

Problem 16.19P

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SITUATION 2: A retaining wall 6 m high supports cohesionless soil having a dry density of 1600 kg/m?,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. 6. 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 b. 86.7 d. 98.1 7. Find the nearest value of the thrust 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. а. 112 c. 147 b. 171 d. 153 8. Find at what height above the base of the wall the thrust acts during the waterlogged condition. а. 2.21 m c. 1.74 m b. 2.00 m d. 1.42 m
Given data: Depth of Clay layer =4Depth of Sand layer=2unit weight of clay kN/m3=23unit weight of sand kN/m3 =21Ø in both layers=30C´= 0
Please find the earth pressure at rest distribution value and resultant force on the retaining wall in figure below. The static side pressure coefficient is 0.5.
Answers a) 91.86 kPa b) 71.73 kPa c) 71.73 kPa
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. a. 73.1 b. 86.7 c. 62.4 d. 98.1 2. Find the nearest value of the thrust 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. a. 112 b. 171 c. 147 d. 153 3. Find at what height above the base of the wall the thrust acts during the waterlogged condition. a. 2.21 m b. 2.00 m c. 1.74 m d. 1.42 m
A retaining wall supports a horizontal backfill that is composed of two types of soil. The first layer is 4.79 meters high. It has a unit weight of 16.61 kN/m3. The second layer is 6.58 meters and has a unit weight of 18.72 kN/m3. If the angle of friction for both layers is 34°, determine the total active force (kN) acting on the retaining wall per unit width. Final answer should be in two decimal places.
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Answer is 4 minute
H.Q 5 Figure below shows an embankment load on a silty clay soil layer. Determine the stress increase at points A, B, and C that are located at a depth of 5 m below the ground surface. + 6m Center line IV:2H IV:2H 10m y =17 KN/m II