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A MRT railway construction will be passing through the Kajang river. In order to prevent the  water from the river to enter the construction area, the cofferdam method are used. The  section through a long cofferdam is shown in Figure 1, the coefficient of permeability of  the soil being 4.0 x 10-7 m/s. As geotechnical engineer from Innovative Bijak Sdn. Bhd.,  you need to do the followings:- (i) Develop flow net under the cofferdam as shown in Figure 1.  (ii) Calculate the quantity seepage (q) in m3/sec entering the cofferdam.

A MRT railway construction will be passing through the Kajang river. In order to prevent the  water from the river to enter the construction area, the cofferdam method are used. The  section through a long cofferdam is shown in Figure 1, the coefficient of permeability of  the soil being 4.0 x 10-7 m/s. As geotechnical engineer from Innovative Bijak Sdn. Bhd.,  you need to do the followings:- (i) Develop flow net under the cofferdam as shown in Figure 1.  (ii) Calculate the quantity seepage (q) in m3/sec entering the cofferdam.

Structural Analysis
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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A MRT railway construction will be passing through the Kajang river. In order to prevent the 
water from the river to enter the construction area, the cofferdam method are used. The 
section through a long cofferdam is shown in Figure 1, the coefficient of permeability of 
the soil being 4.0 x 10-7 m/s. As geotechnical engineer from Innovative Bijak Sdn. Bhd., 
you need to do the followings:-
(i) Develop flow net under the cofferdam as shown in Figure 1. 
(ii) Calculate the quantity seepage (q) in m3/sec entering the cofferdam.

9.00 m 3.00 m 2.80 m 5.00 m 5.00 m Figure 1: Cross section of cofferdam in Kajang River in Selangor
Transcribed Image Text:9.00 m 3.00 m 2.80 m 5.00 m 5.00 m Figure 1: Cross section of cofferdam in Kajang River in Selangor
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