A 0.5 m diameter well fully penetrates an unconfined aquifer whose bottom is 150 m below the undisturbed ground water table. The water is pumped out from the well at a constant rate of 0.15 m³/s. Coefficient of permeability of the medium is 30 m/d and draw down in an observation well at a radial distance of 50 m is 5 m. The draw down in the main well is m (round off to two decimal places).

A 0.5 m diameter well fully penetrates an unconfined aquifer whose bottom is 150 m below the undisturbed ground water table. The water is pumped out from the well at a constant rate of 0.15 m³/s. Coefficient of permeability of the medium is 30 m/d and draw down in an observation well at a radial distance of 50 m is 5 m. The draw down in the main well is m (round off to two decimal places).

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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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 0.5 m diameter well fully penetrates an unconfined aquifer whose bottom is 150
m below the undisturbed ground water table. The water is pumped out from the well
at a constant rate of 0.15 m³/s. Coefficient of permeability of the medium is 30 m/d
and draw down in an observation well at a radial distance of 50 m is 5 m. The draw
down in the main well is
m (round off to two decimal places).

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