45.) A retaining wall supports a horizontal backfill that is composed of two types of soil. First layer: 5.91 meters high, Unit weight of 17.26 kN/m3, coefficient of active pressure of 0.291 Second layer: 5.36 meters high, Unit weight of 18.85 kN/m3, coefficient of active pressure of 0.301 Determine the distance of the total active force measured from the bottom of the wall. Round off to three decimal places.

Principles of Foundation Engineering (MindTap Course List)
9th Edition
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
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Chapter16: Lateral Earth Pressure
Section: Chapter Questions
Problem 16.19P
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45.) A retaining wall supports a horizontal backfill that is composed of two types of soil.

First layer: 5.91 meters high, Unit weight of 17.26 kN/m3, coefficient of active pressure of 0.291

Second layer: 5.36 meters high, Unit weight of 18.85 kN/m3, coefficient of active pressure of 0.301

Determine the distance of the total active force measured from the bottom of the wall. Round off to three decimal places.

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