-8 00 m- 3.00 m 2.50 m 7.25 m 9.00 m FIGURE 1 Q1) Draw the flow net of seepage under the structure in Figure 1, and determine the quantity of seepage. The coefficient of permeability of the soil is 5-0x10$ m/sec. What is the uplift force on the base of the structure? (Use Nf = 4) %3D

-8 00 m- 3.00 m 2.50 m 7.25 m 9.00 m FIGURE 1 Q1) Draw the flow net of seepage under the structure in Figure 1, and determine the quantity of seepage. The coefficient of permeability of the soil is 5-0x10$ m/sec. What is the uplift force on the base of the structure? (Use Nf = 4) %3D

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

3.00 m
2.50 m
9.00 m
7.25 m
FIGURE 1
Q1) Draw the flow net of seepage under the structure in Figure 1, and determine
the quantity of seepage. The coefficient of permeability of the soil is 5-0x10$
m/sec. What is the uplift force on the base of the structure? (Use Nf = 4)
%3D

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A dam, shown in Figure 5 retains IO m of water. A sheet pile wall (cutoff curtain) on theupstream side, which is used to reduce seepage under the dam, penetrates 7 m into a 20 mthick silty sand stratum. Below the silty sand is a thick deposit of clay. The averagecoefficient of permeability of the silty sand is 2.0 x 10-4 cm/sec. Assume that the siltysand is homogeneous and isotropic.(i) Draw the flow net under the dam.(ii) Calculate the seepage rate, q per meter length of the sheet pile.
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ps. not graded