A 15 m high retaining wall retains two soil layers with the following properties:Upper soil layer: Thickness = 5 m, c = 10 kN/m², & = 25°, y = 18.5 kN/m³Lower soil layer: Thickness = 10 m c = 15 kN/m², = 300, y = 19.5 kN/m³, Ysat20 kN/m³Considering a surface load intensity of 60 kPa and the location of water table is 7m below the ground surface, determine the active thrust and its distance from thebase of the wall.

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Answered: A 15 m high retaining wall retains two…

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 circular footing of 1.5 m radius transmits a uniform pressure of 90 kN/m². The vertical stress at a point 3 m directly beneath it's center is A 26 kN/m² B 72 kN/m² C 54 kN/m² D 90 kN/m²
A cantilever retaining wall supports 2 layers of soil and surcharge as shown below. The layers have these properties: Layer 1: 1.8m thick. γ = 17.4 kN/m3 and ϕ = 22 degrees Layer 2: 4.2m thick. γsat = 18.1 kN/m3 and ϕ = 30 degrees The angle of friction between the base and soil is 42 degrees. Unit weight of concrete is 23.6 kN/m3 What is the design moment (kNm / m) at the bottom of the stem? None of the choices 819.98 478.88 363.00 299.30 Please answer this asap. For upvote. Thank you very much
The following figure shows a section of an anchored retaining wall embedded into a saturated stiff clay layer. The sand has a unit weight of = 18 kN/m³, c' = 0 kPa and o' = 34º. The clay has a unit weight of = 20 kN/m³, c₁ = 80 kPa and = 0°. A uniform pressure of 40 kPa is applied on the soil surface. The short term stability of the wall is considered in an undrained analysis. Use the Rankin's theory of lateral earth pressure to determine the active and passive horizontal stresses. You should apply the requirements of AS 4678 and the partial factors of safety method in estimation of soil pressures. Assume the soil is in-situ and use a structural classification factor of ₁ = 1. 3m 1m Water table 1.5m 40 kPa Not to Scale Sand Clay Ta
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 vertical retaining wall 8.8 meters high retains a horizontal backfill having the following properties: Void ratio = 0.64; Specific Gracvity = 2.64; Water Content = 28 %; Angle of internal Friction = 31°. Compute the location of the active force in meters from the bottom of the wall acting on it if the water table is 3.0 meters below the ground surface.
A square column foundation with base of 1.51 m is shown in the figure. It carries an axial load of 468 kN and has its bottom resting on the ground water table located h1 = 1.4 m. below the ground surface. h2 = 0.8 m and h3 = 2.5 m. Compute the settlement of the clay layer in millimeter caused by primary consolidation if the preconsolidation pressure of the clay is 98 KPa. |P Shy h1 kak 1:1:1 2222 1:1 I Dry Sand Wet Sand Clay Soil Properties: Unit Weight of Dry Sand = 15.4 KN/m3 Saturated Unit Weight of Sand = 19.4 KN/m3 Saturated Unit Weight of Clay = 18.6 KN/m3 Compression Index = 0.264 Void Ratio of Clay = 0.75 Swell Index = 1/5Cc 11 LEE ILLI CEET EEGGE LLLLLLI TELLIT 1
(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.
Answer in three decimal places please
Find the passive earth pressure coefficient. For a vertical retaining wall having a backfill of dry sand inclined at an angle of 20° from the horizontal

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