Construct a 2D flow-net for the under-seepage problem of the dam below which rests on a 2-layer foundation. Both soil layers are isotropic in Darcy's law, with the isotropic permeabilities of the upper and lower layers being Ix10“ and 3x10 m/s, respectively. State and use the transfer conditions about the change of angles of flowlines (Snell's law in seepage) as flows enter and exit from layer 1 to layer 2 through their interface, and the change of flow net aspect ratios. Set ((An/As) =1) to have a 'square' flow-net in the upper region and the 'non-square' one (An/As)2-ki /k:) in the lower layer (s being the length in the flow of flow and n being normal to it). Compute the total flow rate due to the under-seepage. 4.00m a 50m 1.00 m 5.00m 10.00 m

Construct a 2D flow-net for the under-seepage problem of the dam below which rests on a 2-layer foundation. Both soil layers are isotropic in Darcy's law, with the isotropic permeabilities of the upper and lower layers being Ix10“ and 3x10 m/s, respectively. State and use the transfer conditions about the change of angles of flowlines (Snell's law in seepage) as flows enter and exit from layer 1 to layer 2 through their interface, and the change of flow net aspect ratios. Set ((An/As) =1) to have a 'square' flow-net in the upper region and the 'non-square' one (An/As)2-ki /k:) in the lower layer (s being the length in the flow of flow and n being normal to it). Compute the total flow rate due to the under-seepage. 4.00m a 50m 1.00 m 5.00m 10.00 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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The dam shown has a base of which 2m below the ground surface. The pressure distribution diagram at the base of the dam can be obtained from the equipotential lines as follows: k=4.5 m/day. if H=6m determine the seepage through the foundation.
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3c,d,e
2
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Q3(a,b)