A smooth vertical wall retains a sandy backfill underlain by clay with a surcharge q=200 kN/m. Assuming the entire soil is in the Rankine active state. Determine the magnitude and location of the resultant active force on the wall.

A smooth vertical wall retains a sandy backfill underlain by clay with a surcharge q=200 kN/m. Assuming the entire soil is in the Rankine active state. Determine the magnitude and location of the resultant active force on the wall.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A retaining wall with a smooth vertical back retains silt backfill for a depth of 6 m. The backfill has a horizontal surface having following properties c'= 10 kPa, = 20° and y = 17 kN/m³. Calculate the percentage decrement in the magnitude of thrust on the wall when the wall is restrained against yielding to when the wall is free to yield (assume development of tension crack when wall yields). A 32.8% B 45.7% C 50.3% D 61.4%
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°
A smooth vertical wall of height 6 m retains a granular backfill with unit weight of 22 kN/m³ and a friction angle of 36°. Compute the value and location of the resultant active thrust.
A rigid retaining wall of 6 m height (Fig. Ex. 11.11) has two layers of backfill. The top layer to a depth of 1.5 m is sandy clay having = 20°, c = 12.15kN/m² and y 16.4kN/m³ The bottom layer is sand having = 30°, c =0, and y = 17.25kN/m³Determine the total active earth pressure acting on the wall and draw the pressure distribution diagram. 1.5 m 6 m GL c= 12.15 kN/m² 1.5 m y = 16.4 kN/m³ y = 17.25 kN/m³ = 30°,c=0 FE Sand 4.5 m TAVIAVAVAVAVA Sandy = 20° clay 8.2 kN/m² Figure Ex. 11.11 -34.1 kN/m².
Determine the active and passive force acting on a 3 meter high wall that supports clay with an undrained shear strength of 100 kPa and a unit weight of 19.20 kN/m
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).
A retaining wall supports a horizontal backfill that is composed of two types of soil. First layer: 4.84 meters high, Unit weight of 17.36 kN/m3, coefficient of active pressure of 0.285 Second layer: 5.68 meters high, Unit weight of 18.9 kN/m3, coefficient of active pressure of 0.307 Determine the distance of the total active force measured from the bottom of the wall. Round off t
(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.