A 500-m long levee made of compacted clay impounds water in a reservoir as shown in Figure 3. A sandy-silt seam of average thickness 1.0 m (measured in the direction in the vertical direction) cuts across the otherwise impermeable clay. The average hydraulic conductivity of the sandy-silt seam is 1.5 x 10 cm/sec. Determine the volume of water that flows into the ditch every day. EL. 38 m Levee Reservoir (Compacted day) EL: 32 m EL: 30 m Sand seam m EL: 26m Ditch EL: 24m Clay 50 m (Not to scale)

A 500-m long levee made of compacted clay impounds water in a reservoir as shown in Figure 3. A sandy-silt seam of average thickness 1.0 m (measured in the direction in the vertical direction) cuts across the otherwise impermeable clay. The average hydraulic conductivity of the sandy-silt seam is 1.5 x 10 cm/sec. Determine the volume of water that flows into the ditch every day. EL. 38 m Levee Reservoir (Compacted day) EL: 32 m EL: 30 m Sand seam m EL: 26m Ditch EL: 24m Clay 50 m (Not to scale)

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

3. A 500-m long levee made of compacted clay impounds water in a reservoir as shown in
Figure 3. A sandy-silt seam of average thickness 1.0 m (measured in the direction in the
vertical direction) cuts across the otherwise impermeable clay. The average hydraulic
conductivity of the sandy-silt seam is 1.5 x105 cm/sec. Determine the volume of water
that flows into the ditch every day.
EL. 38 m
Levee
Reservoir
(Compacted day)
EL: 32 m
EL: 30 m
Sand seam
EL: 26m
DitchEL: 24m
Clay
50 m
(Not to scale)
Figure 3

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