A fully penetrating well with diameter of 0.25 m is bored into an unconfined aquifer with hydraulic conductivity of 22 m/d and porosity of 0.3. The water table is initially at a height of 55 m above the bottom of the aquifer. After continuous pumping, a steady state drawdown of 12 m is reached. (a) If the pumping rate has no effect on the water table at a distance of 1.2 km from the pumping well, determine the pumping rate. Determine the drawdown in an observation well 600 m away from the pumping well. Determine the travel time from the observation well to the pumping well.

A fully penetrating well with diameter of 0.25 m is bored into an unconfined aquifer with hydraulic conductivity of 22 m/d and porosity of 0.3. The water table is initially at a height of 55 m above the bottom of the aquifer. After continuous pumping, a steady state drawdown of 12 m is reached. (a) If the pumping rate has no effect on the water table at a distance of 1.2 km from the pumping well, determine the pumping rate. Determine the drawdown in an observation well 600 m away from the pumping well. Determine the travel time from the observation well to the pumping well.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter6: Hydraulic Conductivity

Section: Chapter Questions

Problem 6.15P

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