Compare the effect of surface loading on retained soil side on the lateral pressure behind retaining wall by assuming a uniformly distributed load of 20 kPa on the top of the soil behind the retaining wall. The soil properties are: c' = 0. φ'= 30°, γ = 19 kN/m3 and the height of retaining wall on active side is 6m.Your answer should be in table form showing lateral pressure with and without superimposed loading, and the percent increase/decrease in total pressure at different depths.

Compare the effect of surface loading on retained soil side on the lateral pressure behind retaining wall by assuming a uniformly distributed load of 20 kPa on the top of the soil behind the retaining wall. The soil properties are: c' = 0. φ'= 30°, γ = 19 kN/m3 and the height of retaining wall on active side is 6m.Your answer should be in table form showing lateral pressure with and without superimposed loading, and the percent increase/decrease in total pressure at different depths.

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter15: Braced Cuts

Section: Chapter Questions

Problem 15.6P

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Assume the base soil and that in front the wall is gravelly sand of Ø = 33 and γ = 18 kN/m3,overlying a soft-clay deposit at 1.0mdepth belowthe base level, as shown in the scheme below. The ground water tableis also located at the same depth. The soft clay has an average c = 20 kPa,Ø= 0 and γ = 17.5 kN/m3. Determine thesafety factor (SF) against a deep-seated shear failure (or rotational instability) for a trial cylindrical slip surface throughthe heel shown in Scheme 5.97. Assume radius of the cylindrical slip surface is 4.33 m, and its centre O located at2.87 m above the foundation level. Use the conventional method of slices (the Fellenius or Swedish solution).
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
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Please find the earth pressure at rest distribution value and resultant force on the retaining wall in figure below. The static side pressure coefficient is 0.5.
Question 1: You are designing a retaining wall at the construction site. The friction angle of sand backfill is 28". Define the active lateral earth pressure coefficient based on Rankine's theory. Show your work and select the closest value: a) 0.30 b) 0.35 c) 0.40 d) 0.50
The normally consolidated clay soil will be supported by a retaining wall in active conditions. Laboratory testing of this soil revealed the following shear strength: Su = 40 kPa and c'=0, o' (friction angle )= 26° (all derived from undrained TX tests). Assume a vertical wall, no interface friction angle and GWT at the ground surface (right side only). a. Determine the total lateral earth pressure distribution for short term design (immediately after construction). b. Determine the total lateral earth pressure distribution for long term design (drained conditions). C. Discuss the magnitude differences between the two and which earth pressure provides the greatest load case for the wall, i.e., controls the wall design.
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