The cantilevered retaining wall shown is under design. What is most nearly the active resultant per unit length of wall? Ground (A) 280 psf Surface Proposed cohesionless backfill (installed with drains) y= 118.4 pcf - 31° (B) 1900 psf 15 ft (C) 4260 psf mudline (D) 8530 psf

The cantilevered retaining wall shown is under design. What is most nearly the active resultant per unit length of wall? Ground (A) 280 psf Surface Proposed cohesionless backfill (installed with drains) y= 118.4 pcf - 31° (B) 1900 psf 15 ft (C) 4260 psf mudline (D) 8530 psf

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter17: Retaining Walls

Section: Chapter Questions

Problem 17.2P

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Concept explainers

Landfills

The landfill is a site used for the disposal of waste materials. The landfill is a solid waste facility that is often known as a dumping ground. The image below shows a landfill site in Hawaii. Landfilling is the most ancient and common method used for the disposal of waste. For the landfill, a deep trench is constructed in an isolated place away from the city. The trench for landfills is designed properly after analyzing the total population and the waste generation per capita. The waste is dumped into the trench and after every layer of waste, a layer of soil is spread on the top of it.

Question

Geotechnical problem

The cantilevered retaining wall shown is under design. What is most nearly the active resultant per unit length of wall?
(A) 280 psf
Ground
Surface
Proposed cohesionless backfill
(installed with drains)
y = 118.4 pcf
= 31°
(B) 1900 psf
15 ft
(C) 4260 psf
mudline
(D) 8530 psf
6 ft
Hint: Calculate the coefficient of active earth pressure and use it to find the active resultant.

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