Problem 3 --- A falling head permeability test is conducted in the laboratory. The diameter of the standpipe was determined at 10mm. The initial head before the test was conducted was 92 cm and its final head was 85 cm. The duration of the test was 12 min. The length of the soil sample was determined at 50 cm and the permeameter diameter was 40 cm. Determine a) coefficient of permeabilty in cm/min, b) hydraulic gradient, c) rate of flow of water in soil, d) seepage velocity if the porosity is 0.25

Problem 3 --- A falling head permeability test is conducted in the laboratory. The diameter of the standpipe was determined at 10mm. The initial head before the test was conducted was 92 cm and its final head was 85 cm. The duration of the test was 12 min. The length of the soil sample was determined at 50 cm and the permeameter diameter was 40 cm. Determine a) coefficient of permeabilty in cm/min, b) hydraulic gradient, c) rate of flow of water in soil, d) seepage velocity if the porosity is 0.25

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

Problem 3 ---
A falling head permeability test is conducted in the
laboratory. The diameter of the standpipe was
determined at 10mm. The initial head before the test was
conducted was 92 cm and its final head was 85 cm. The
duration of the test was 12 min. The length of the soil
sample was determined at 50 cm and the permeameter
diameter was 40 cm. Determine a) coefficient of
permeabilty in cm/min, b) hydraulic gradient, c) rate of
flow of water in soil, d) seepage velocity if the porosity is
0.25

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Please solve with it step by step and explain your anaswer clear so I can understand everythin! Thank you
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