Q2. A pumping tests are carried out using testing well (pumping well for testing only) and twoobservational wells. The observation wells were installed at 10 and 30.5 m, respectively, fromthe testing well. In both wells, the initial piezometric head was 36.2 m. The pumping proceededat a rate of 0.19 m³/s. After few days the piezometric head stabilized at 30.7 m and 32.9 m in thefirst and second observational wells, respectively. Determine:a. Transmissivity of the aquifer.b. The well radius of influence.c. The maximum drawdown if the well radius is 0.47 m.

Given data- Distance of observation wells from the aquifer r2=30.5m, r1=10m Initial Head H=36.2m…

Q2. A pumping tests are carried out using testing well (pumping well for testing only) and two observational wells. The observation wells were installed at 10 and 30.5 m, respectively, from the testing well. In both wells, the initial piezometric head was 36.2 m. The pumping proceeded at a rate of 0.19 m/s. After few days the piezometric head stabilized at 30.7 m and 32.9 m in the first and second observational wells, respectively. Determine: a. Transmissivity of the aquifer. b. The well radius of influence. c. The maximum drawdown if the well radius is 0.47 m.

Q2. A pumping tests are carried out using testing well (pumping well for testing only) and two observational wells. The observation wells were installed at 10 and 30.5 m, respectively, from the testing well. In both wells, the initial piezometric head was 36.2 m. The pumping proceeded at a rate of 0.19 m/s. After few days the piezometric head stabilized at 30.7 m and 32.9 m in the first and second observational wells, respectively. Determine: a. Transmissivity of the aquifer. b. The well radius of influence. c. The maximum drawdown if the well radius is 0.47 m.

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

Q2. A pumping tests are carried out using testing well (pumping well for testing only) and two
observational wells. The observation wells were installed at 10 and 30.5 m, respectively, from
the testing well. In both wells, the initial piezometric head was 36.2 m. The pumping proceeded
at a rate of 0.19 m³/s. After few days the piezometric head stabilized at 30.7 m and 32.9 m in the
first and second observational wells, respectively. Determine:
a. Transmissivity of the aquifer.
b. The well radius of influence.
c. The maximum drawdown if the well radius is 0.47 m.

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