What is the overall horizontal conductivity for an aquifer with 3 different formations if: formation 1 has a thickness of 7 m and hydraulic conductivity of 15 m/d, formation 2 has a thickness of 12 m and hydraulic conductivity of 6 m/d, formation 3 has a thickness of 16 m and hydraulic conductivity of 1m/d, (Assume that each formation is isotropic and homogeneous) (Please enter the answer with one decimal)

What is the overall horizontal conductivity for an aquifer with 3 different formations if: formation 1 has a thickness of 7 m and hydraulic conductivity of 15 m/d, formation 2 has a thickness of 12 m and hydraulic conductivity of 6 m/d, formation 3 has a thickness of 16 m and hydraulic conductivity of 1m/d, (Assume that each formation is isotropic and homogeneous) (Please enter the answer with one decimal)

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

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

What is the overall horizontal conductivity
for an aquifer with 3 different formations if:
formation 1 has a thickness of 7 m and
hydraulic conductivity of 15 m/d,
formation 2 has a thickness of 12 m and
hydraulic conductivity of 6 m/d,
formation 3 has a thickness of 16 m and
hydraulic conductivity of 1m/d,
(Assume that each formation is isotropic and
homogeneous)
(Please enter the answer with one decimal)

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