LATERAL EARTH PRESSURESITUATION 3:A 6 m high wall retains dry sand whosedry density is 1.95 g/cc and the angleof shearing resistance is 32°. Specificgravity is 2.65. Using Rankine Theory.8. Which of the following most nearlygives the total active thrust on thewall?a. 114.8 kNC. 174.3 kNb. 162.4 kNd. 105.72 kN

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Answered: LATERAL EARTH PRESSURE SITUATION 3: A 6…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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FDE 002: A retaining wall 7m high supports a cohesionless soil having a dry density of 1620 kg/m³, angle of shearing resistance is 33 degrees and void ratio of 0.68. The surface of soil is horizontal and level with the top of the wall. Neglect wall friction and use Rankine's formula for active pressure of a cohesionless soil. Determine the height above the base of the wall where the thrust acts during the waterlogged condition. Select the correct response: 1.53 m 1.97 m 2.03 m 3.67 m
Q2. Which of the two retaining walls in Figure 2 produces a larger horizontal component of active thrust? y = 18 kN/m³ $'= 34° c' = 0 kPa 14 H=7m H = 7m Figure 2 115°
Dujone
A retaining wall with a vertical smooth back is 8 m high. It supports a cohesionless soil (y = 19 kN/m², o = 30°). The surface of the soil is horizontal. The thrust on the wall is:
A smooth gravity wall retains a 12 m-high backfill as shown in the figurebelow. The top 8 m is sand, which is underlain by some clay. The soilproperties are as follows:Sand: γm = 18.9 kN/m 3, γsat = 19.8 kN/m 3; φ' = 32°Clay: γm = 20.1 kN/m 3; φ' = 18°, c' = 20 kPaAssuming that the entire soil is in the active state, find the location andmagnitude of the total thrust on the wall.
Q-A vertical wall of height 5 m retains a soil having Ysat = 20 kN/m³, and p = 30°. Uniform distributed load of 12 kN/m² is applied on ground surface. If wall is at rest and at zero lateral strain condition, then lateral pressure at 5 m depth (water table at ground level) would be-
A gravity retaining wall retains 12 m of a backfill, y = 17.7 kN/m² = 25° with a uniform horizontal surface. Assume the wall interface to be vertical, determine the magni tude and point of application of the total active pressure. If the water table is a height of 6 m. how far do the magnitude and the point of application of active pressure changed? Please solve carefully and don't give wrong answers and box the final answers
digit number qs=19
A retaining wall is constructed in a clayey soil. The height of the backfill is found to be 9m, the unit weight of the sand is 2t/m³ and the angle of internal friction is 30°. Find out the earth pressure per meter length on the retaining wall with a smooth vertical back.
A smooth vertical wall 4 m retains cohesive soil backfill with c = 10 kN/m?. O = 0 and y = 18 kN/m2. Determine (i) The depth at which active earth pressure is zero. (ii) Depth of tension crack (iii) Depth at which total active thrust is zero (iv) Plot of active pressure distribution (v) Total active thrust per unit length of wall when tension cracks not developed.
A retaining wall with a smooth vertical back retains sand backfill for a depth of 6m. The horizontal backfill has the following properties. d' = 0, y = 16KN/m³; Vsat = 20k N/m³. Calculate the magnitude of total thrust against the wall for given conditions: (a) backfill fully drained but the top of wall is restrained against yielding: (b) backfill fully drained and the wall is free to yield, and (c) wall free to yield, water table at 3m depth without drainage. Determine the point of application for the resultant thrust case(c).
(4) The backfill behind a retaining wall is clay with a unit weight of 18 kN/m', cohesion of 15 kPa, and an internal friction angle of 30°. The height of the wall is 6 m. The back of the wall is vertical and smooth, and the surface of the backfill is horizontal. Please calculate the active earth pressure on the wall back, including its distribution, the resultant force and its position.

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