2. The figure shown below is asubsoil is anisotropic and has permeabilities kk, = 2.0 x 10 in./sec. Find the rate of flow beneath the dam per footcrosssection of aconcrete dam. The= 0.8 x 10 in./sec andlength of the dam. Assume NE4, and Na = 8.55 ft32 ftConcrete dam3 ftIAVIAIAVIAAVIA

Given: The permeability in horizontal direction is 0.8 x 10 in/sec. The permeability in vertical…

2. The figure shown below is a cross section of a concrete dam. The subsoil is anisotropic and has permeabilities k = 0.8 x 10 in./sec and k, = 2.0 x 10 in./sec. Find the rate of flow beneath the dam per foot length of the dam. Assume N = 4, and Na = 8.

2. The figure shown below is a cross section of a concrete dam. The subsoil is anisotropic and has permeabilities k = 0.8 x 10 in./sec and k, = 2.0 x 10 in./sec. Find the rate of flow beneath the dam per foot length of the dam. Assume N = 4, and Na = 8.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter7: Permeability

Section: Chapter Questions

Problem 7.5P

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Concept explainers

Field applications of hydraulic conductivity

Hydraulic conductivity is one of the hydraulic properties of soil defined as a measurement of the ability of a porous medium to permit water movement or fluid flow through it. It is denoted by the letter K. It is influenced by the density and viscosity of the fluid. It is also called permeability. Hydraulic conductivity is defined as the ratio of velocity to the hydraulic gradient. The different methods used to determine the hydraulic conductivity are laboratory methods (constant head permeability tests and falling head tests), in-situ field methods (pumping in and pumping out tests), small scale field tests (infiltration tests and slug tests), and indirect methods such as estimation from grain size, consolidation test data, and horizontal capillary test. The pedotransfer function (PTF) method is a specific empirical estimating approach employed in the soil sciences is also used to determine the hydraulic conductivity of the soil.

Question

2. The figure shown below is a
subsoil is anisotropic and has permeabilities k
k, = 2.0 x 10 in./sec. Find the rate of flow beneath the dam per foot
cross
section of a
concrete dam. The
= 0.8 x 10 in./sec and
length of the dam. Assume NE
4, and Na = 8.
55 ft
32 ft
Concrete dam
3 ft
IAVIA
IAVIA
AVIA

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