2. An artesian well is pumped at the rate of 25 liters/sec. at observation wells 170m and 340m away the drawdowns noted are 0.83m and 0.67m respectively. The average thickness of the aquifer at the observation wells is 6.5 meters. Compute the coefficient of permeability of the aquifer if the water level was 15 meters before pumping.

2. An artesian well is pumped at the rate of 25 liters/sec. at observation wells 170m and 340m away the drawdowns noted are 0.83m and 0.67m respectively. The average thickness of the aquifer at the observation wells is 6.5 meters. Compute the coefficient of permeability of the aquifer if the water level was 15 meters before pumping.

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

2. An artesian well is pumped at the rate of 25 liters/sec. at observation wells 170m and
340m away the drawdowns noted are 0.83m and 0.67m respectively. The average
thickness of the aquifer at the observation wells is 6.5 meters. Compute the coefficient of
permeability of the aquifer if the water level was 15 meters before pumping.
340 m
170 m
Q= 25 liters
normal hyd.
grade line
0.83
15m
h2
hi
impermeable
layer
t= 6,5 mm
Aquifer

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