B6 A dike was designed to support the additionalforces created by the silt accumulated at thebottomof a lake (Skin= 1000 kg/m=). Knowing that the mud isequivalent to a liquid of density pu1760 kg/m° and considering a 1 m section ofthe dike, evaluate the percentage increase inforce exerted on the surface of the dike due toan accumulation of 2 m of silt.EauDigue6,6 mVase

Answered: Image /qna-images/answer/166cb3dd-5617-4972-8fee-cbe82c8b2e26.jpg

Engineering

Civil Engineering

B6

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter7: Seepage

Section: Chapter Questions

Problem 7.7CTP

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Concept explainers

Open Channel Flow

Open channel flow is a branch of fluid mechanics. It deals with the flow of fluid in an open conduit or free surface. In an open channel flow, gravity induces the flow of water whose surface is open to the air. This flow is free-falling rather than confined in rigid body conduits. The open channel flow depends upon two parameters that are the cross-section of the conduit and the velocity profile. Practical examples of open channel flow are streams, rivers, canals, and other drainage systems.In open channel flow, the cross-sectional area of at least one of the sides is exposed to air, and the surface of water faces atmospheric pressure. This flow is also known as free gravity flow. The cross-sectional area of the conduit can be either man-made or a natural channel. For instance, the flow in rivers and streams are natural conduits, and the flow in a canal and sanitary systems are man-made or engineered channels.

Question

A dike was designed to support the additional
forces created by the silt accumulated at the
bottom
of a lake (Skin
= 1000 kg/m=). Knowing that the mud is
equivalent to a liquid of density pu
1760 kg/m° and considering a 1 m section of
the dike, evaluate the percentage increase in
force exerted on the surface of the dike due to
an accumulation of 2 m of silt.
Eau
Digue
6,6 m
Vase

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