A 500 m long levee made of compacted clay impounds water in a reservoir as shown in Figure P2.8. There is a 1 m thick (measured in the direction perpendicular to the seam) sand seam continuing along the entire length of the levee, a 10° inclination to the horizontal, which connects the reser- voir and the ditch. The hydraulic conductivity of the sand is 2.6 x 103 cm/s. Determine the volume of water that flows into the ditch every day.

A 500 m long levee made of compacted clay impounds water in a reservoir as shown in Figure P2.8. There is a 1 m thick (measured in the direction perpendicular to the seam) sand seam continuing along the entire length of the levee, a 10° inclination to the horizontal, which connects the reser- voir and the ditch. The hydraulic conductivity of the sand is 2.6 x 103 cm/s. Determine the volume of water that flows into the ditch every day.

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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Concept explainers

Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.

Question

Elev. 38 m
Reservoir
Elev. 30 m
(Not to scale)
FIGURE P2.8
Levee
Sand seam
200 m
Ditch
Elev. 28 m

2.8
A 500 m long levee made of compacted clay impounds
water in a reservoir as shown in Figure P2.8. There is a 1 m
thick (measured in the direction perpendicular to the seam)
sand seam continuing along the entire length of the levee, at
10° inclination to the horizontal, which connects the reser-
voir and the ditch. The hydraulic conductivity of the sand is
2.6 × 10-³ cm/s. Determine the volume of water that flows
into the ditch every day.

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