A well is fully penetrated into a 27 m thick layer of sand which is underlain by a rock layer below the static water table. After 24 hours of pumping at 50 liters per second, the water level in an observation well at a distance of 0.10 km from the test well is lowered 50 cm. At another test well located 5000 cm from the test well, the water level dropped by 1000 mm. 1. Evaluate the coefficient of permeability (K) in cm per day? 2. If K 1.15 cm/sec, what should be the rate of discharge (q) in ( lit/sec)?

A well is fully penetrated into a 27 m thick layer of sand which is underlain by a rock layer below the static water table. After 24 hours of pumping at 50 liters per second, the water level in an observation well at a distance of 0.10 km from the test well is lowered 50 cm. At another test well located 5000 cm from the test well, the water level dropped by 1000 mm. 1. Evaluate the coefficient of permeability (K) in cm per day? 2. If K 1.15 cm/sec, what should be the rate of discharge (q) in ( lit/sec)?

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter9: In Situ Stresses

Section: Chapter Questions

Problem 9.11P

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