A 300 mm diameter test well penetrates 24 m below the static water table. After 24 hours of pumping at 69 liters/sec, the water level in an observation well at a distance of 96 m from the test well is lowered 0.60 m and the other observation well at a distance of 34 m from the test well, the drawdown is 1.2 m. Compute the coefficient of permeability of the unconfined aquifer in m/day. Compute the transmissivity of the unconfined aquifer in m2/day. Compute the transmissivity if there is a confined aquifer of 8m, thick below the unconfined aquifer m2/day.

A 300 mm diameter test well penetrates 24 m below the static water table. After 24 hours of pumping at 69 liters/sec, the water level in an observation well at a distance of 96 m from the test well is lowered 0.60 m and the other observation well at a distance of 34 m from the test well, the drawdown is 1.2 m. Compute the coefficient of permeability of the unconfined aquifer in m/day. Compute the transmissivity of the unconfined aquifer in m2/day. Compute the transmissivity if there is a confined aquifer of 8m, thick below the unconfined aquifer m2/day.

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 7.22P: Refer to Figure 7.24. The following data were collected during the field permeability measurement of...

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