Answered: Su = 50 kPa Vary = 17 kN/m³ Y = 18…

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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Question

Consider the smooth retaining wall shown below. Assume that the backfill is under active and undrained conditions and the water table is at the ground surface. Which of the following statements is true? (select all that apply)

The active earth pressure is proportional to the vertical effective stress over depth.

Tension crack can develop behind the retaining wall if no surcharge is applied.

The resultant thrust acting on the wall only depends on the lateral earth pressure.

Rankine’s theory can be used for all cases when there is some friction at the interface between the wall

and the soil.

When the wall is smooth, the slip surfaces are planar, and Rankine’s theory can be used.

Su = 50 kPa
Y = 17 kN/m³
dry
Y y = 18 kN/m³
sat
6 m

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