A well in an infinite confined aquifer (transmissivity = 30 m²/h and aquifer storativity = 0.005) has a pumping pattern as shown below. Find the drawdown in an observation well 50m away in hourly time steps to 20 hours. Use Cooper Jacob approximation only for u = ST-2 4TT <0.01.

A well in an infinite confined aquifer (transmissivity = 30 m²/h and aquifer storativity = 0.005) has a pumping pattern as shown below. Find the drawdown in an observation well 50m away in hourly time steps to 20 hours. Use Cooper Jacob approximation only for u = ST-2 4TT <0.01.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter8: Stresses In A Soil Mass

Section: Chapter Questions

Problem 8.14P

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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

Do not give answer in image and hand writing

2. A well in an infinite confined aquifer (transmissivity =30 m²/h and aquifer storativity =
0.005) has a pumping pattern as shown below. Find the drawdown in an observation well
50m away in hourly time steps to 20 hours. Use Cooper Jacob approximation only for
Sr.²
<0.01.
u =
4Tt
1000
Pumping rate (m^3/h)
750
500
250
0
0
1
2
3
4
5
6
7
8
Time (h)

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