Answered: m respectively. Compute the hydraulic…

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Civil Engineering

m respectively. Compute the hydraulic conductivity of the aquifer and the radius of influence of 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 6.9P

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Concept explainers

Groundwater Flow

The term groundwater refers to the water which is found beneath the earth's surface. Pores present in the soil and rocks with fractures make a passage for rainwater to enter the earth's surface and deposit as groundwater. The flow nature and direction of groundwater under the earth's surface directly impacts the strength and compressibility of the soil, which reflects its ability to support structural loads.

Question

A well penetrates an unconfined aquifer. Prior to pumping the water level(head) is ho = 25m after a long period of pumping at a constant rate of 0.05 m^3/s the drawdowns at distances of 50m and 150 m from the well were observed to be 3 m and 1.2 m respectively. Compute the hydraulic conductivity of the aquifer and the radius of influence of the pumping well. What type of deposit is the aquifer material?

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