Given the cantilever gravity retaining wall supporting a backfill of coarse-grained soil as shown.Note: Neglect the passive force and the weight of the soil in front of the wallI.9, = 18 kPa***0.5 m8Ysat =19 kN/m³O = 256.3 mBackfillDrainage blanket1.0 mY. = 23,5 KN/m0.9 m+1.8 m-+3 m1) Determine the location of the resultant active force from the toe in m.2) Calculate the total overturning moment in kN-m.3) Determine the total righting moment in kN-m.4) Calculate the Factor of Safety against overturning in kN-m.

Given: angle of surcharge β=8°angle of friction ϕ=25°unit wt γ=19 KN/m3 ; h=6.3 m ; H=6.2+0.9=7.1…

Answered: Given the cantilever gravity retaining…

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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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.
Please solve the question in the image provided. please solve it.
Q1: Find the uplift pressure at important key points, and check the safty against uplift pressure and piping. The floor is founded over coarse sand for the following hydraulic structure shown in Figure below. (Hint: use G=2.24, use Khosla's theory). 100.5 m 97 m 1 m 95 5 m 96 m 94 m 91.5 m 80 m 12 m 4 m 2.6 m 17.6 m 6.5 m
Determine the factor of safety of the slope against shear failure if water percolates in a direction parallel to surface of slope.
A thin clay layer passes through the soil at an angle of 30° behind an 8m high gravity retaining wall. A structure 5m wide, applying a uniform stress of 40kPa to the sandy soil, also acts on this section of soil as shown in Figure 3.1. The properties of the clay are ??=25???, ∅?=0, ?′=0 and ∅′=20°. The sandy soil properties are ?′=0, ∅′=35°, ????=16??/?2, ????=20??/?2, and between the sand and the wall the properties are ?′?=0 and ∅′?=30°. Assuming that failure occurs along the clay layer, use Coulomb’s method to calculate the horizontal force required from the wall in the short term to prevent slip.
A retaining wall supports a horizontal backfill that is composed of two types of soil. The first layer is 4.74 meters high. It has a unit weight of 17.25 kN/m3. The second layer is 6.6 meters and has a unit weight of 18.4 kN/m3. If the angle of friction for both layers is 32°, determine the total active force (kN) acting on the retaining wall per unit width. Use stored value. Answer in 5 decimal places.
2m 3.5m Ax m 5.00m SIA 2 3.00 m 15 m Figure (1) ZOL Question II: The section through part of a cofferdam is shown in Figure (1), the saturated unit weight of the soil being 19.5 kN/m³. Determine the value of effective vertical stress at point (A), and find the factor of safety against a heave failure in the excavation adjacent to the sheet piling.
A 7 m high retaining wall retains two sides of soil profile as shown in Figure Q1(c). A uniform surcharge load, q = 150 kPa is acting on the top of two layers soil. Use unit weight of water= 10kN/m3 i) Determine the Ka for the first soil layer (3.0 m), Ka for the second soil layer (4.0 m) and Kp for the first soil layer (4.0 m) ii) Determine the effective stress at the point A in Figure Q1(c) iii) Determine the effective stress at the point B in Figure Q1(c)
(c) The soil profile at a site consists of 2 m of clay (G, = 2.7, e = 0.5) overlying a deep deposit of gravel (G, = 2.55, e = 1.0). If the water table is at the top of the clay, determine the depth at which the effective vertical stress is 100 kPa.
The intensity of passive earth pressure at a depth of 6 m in a cohesionless soil with an angle of internal friction of 30° kN/m². when water rises to ground level is Take saturated unit weight of sand as 21 kN/m³ and y = 9.81 kN/m³. Y
A 10-m-thick layer of stiff saturated clay is underlain by a layer of sand (Figure 9.28). The sand is under artesian pressure. A 5.75-m-deep cut is made in the clay. Determine the factor of safety against heaving at point A.

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