Answered: c' = 0 kPa 4'=30° 2m Y = 17 kN/m³ moist…

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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Calculate the lateral force resulting where an active soil pressure condition develops against the backface of a frictionless wall 20 ft high if the backfill surface is level and the retained soil is cohesionless (unit weight of 115 pcf and angle of internal friction of 35°).
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GEOTECHNICAL ENGINEERING 2 - '21 QUIZ 5 A 6m retaining wall supports a soil with the following properties as shown below. A surcharge of 20 kPa is imposed on the ground surface. Water table is located between the interface of the 2 types of the soil. If soil above water table is dry, find: A. Total Active pressure acting on the wall per meter of its width. B. Location of the Resultant pressure from the base of the RW. C. Overturning moment caused by the active pressure acting on the wall. STRATUM Depth Gs e 1 2 m 2.50 0.65 28° 1.8 kPa 2 4 m 2.85 0.48 32° 2.4 kPa
When movement of a wall under the earth pressures from the backfill was prevented the coefficient of earth pressure was recorded as 0.5. The ratio of the coefficient of passive and active earth pressure of the backfill is
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A reinforced concrete retaining wall is proportioned as shown below. There is a water table located H1m beneath the ground surface. Use ultimate bearing capacity of 450 kPa. Based on the figure, the dimensions are given below. Use γc = 23.48 kN/m3 wall thickness = 0.47m footing thickness = 0.53m toe slab length = 2.33m heel slab length = 4.38m ground water table depth = 2.99 H2 = 3.84 The following values were calculated for this particular retaining wall: Righting moment: 3,868 kN-m/m Overturning moment: 908 kN-m/m Total vertical load: 999 kN/m What is the factor of safety for bearing pressure? Please answer this asap for upvote. Thanks in advance
Find the active lateral force/unit of width and the point of application for a verticalretaining wall with the following data: γ = 110 pcf, Φ= 36° , C = 0 psf, H = 18 ft; Using theCoulomb equation with δ = 20° and (a) horizontal backfill, (b) backfill slope 10° , and (c)backfill slope -10°
Consider the given retaining wall with backfill. The active earth pressure at base of wall is kN/m2. (upto two decimal places) 2m 5m 1m Į II (III) G=2.65 e = 0.85 = 0.08 w = 15° c=15 kN/m² G=2.7 c=0.8 $=10° c=20 kN/m² G=2.7 e=0.6 $ = 20° c=12 kN/m² A
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
You are reviewing the stability of the gravity wall when the backfill has properties with: Φ' = 35° and γt = 16.5 kN/m3. The soils in front of the wall is ignored in the stability analysis, and the drainage blanket has no influence. Assume the coefficient of the base friction is, μ = 0.3, and the unit weight of concrete is γc = 23.5 kN/m3. a) draw the lateral earth pressure diagram and determine the total active lateral force. b) determine the factor of safety against overturning. c) determine the factor of safety against sliding.
EXAMPLE 2 A gravity retaining wall shown below, is required to retain 5 m of soil. The backfill is a course-grained soil with y =18 kN/m3 and o' = 30. the existing soil below the base has the following properties; y = 20 kN/m3 and ' = 36. The ground water table below the base of the wall. 0.6 m Drainage blanket a) Determine the stability of the wall. b) If the drainage system becomes clogged during several days of a storm and the groundwater rises to the surface. Determine the stability 5 m Backfill of the wall. 1m 4.2 m Concrete, Y. = 24 kN/m
Q-1: Figure-1 shows a 4.5-m-high retaining wall. The wall is restrained from yielding. Then find, the following conditions: A) Completely dry soil (no ground water) B) Completely saturated soil system

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c' = 0 kPa 4'=30° 2m Y = 17 kN/m³ moist Ysa 19 kN/m³ WT ✓ 2m WT ☑ 7m