5.27 The dam shown in Figure is located on the anisotropic soil. The coefficients of permeability in thex and z directions are 5 107 and 1.8*10 m/s, respectively. Determine the quantity of seepage under the dam. Di Ans.: Nr = 3.25, Na = 12, q = 1.1 10“ m/sec/m 15.00 m 1.00 m 3.00 m 8.00 m 33.00 m 8.00 m 1.5

5.27 The dam shown in Figure is located on the anisotropic soil. The coefficients of permeability in thex and z directions are 5 107 and 1.8*10 m/s, respectively. Determine the quantity of seepage under the dam. Di Ans.: Nr = 3.25, Na = 12, q = 1.1 10“ m/sec/m 15.00 m 1.00 m 3.00 m 8.00 m 33.00 m 8.00 m 1.5

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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

A DrahmedsoilMechanicsnoteschapter5.pdf
EMENT%20LURI/Downloads/DrahmedsoilMechanicsnoteschapter5.pdf
of 62 Q
3.50 m
5.27 The dam shown in Figure is located on the anisotropic soil. The
coefficients of permeability in the x and z directions are 5*107 and 1.8*10
m/s, respectively. Determine the quantity of seepage under the dam.
Ans.: Nr = 3.25, Na = 12, q = 1.1 10 m/sec/m
15.00 m
1.00 m
3.00 m
8.00 m
33.00 m
8.00 m
Soil Mechanics
(177)
Civil Eng. Dept, - College of Eng
Assistant Prof. Dr. Ahmed Al-Obaidi
12:05 AM
4/12/2021
144
8.
U.
H.
J.
MI

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