Seepage and Slope Stability HO7

Seepage and Slope Stability HO7 - CE 563 Seepage& Slope...

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Unformatted text preview: CE 563, Seepage & Slope Stability Handout #07 EM 1110-2-1901 30 Sep 86 For foundations, furthermost upstream and downstream flow lines and equipotential lines should intersect at or near the center of the pervious foundation. The flow line and equipotantial line nearest an angle shouId intersect on the bisector of the angle. Same as (b) except for an upstream toe on an impervious foundation. 2:1 length ratios to establish shape of the “square” in a pervious foundation at the toe of an impervious fill. 2:1 length ratios used with angle bisectors to shape flow around an imbedded 90-degree angle. 2:1 length ratios to establish flow directions beneath a thin cutoff wall taken to the midpoint of the pervious stratum. Subdivide to check odd-shaped "squares”. Resulting smaller odd-shaped "squares” should have the general shape of the one subdivided. Guides for flow net construction (from U. S. Department 123 of Agriculture ) Figure 4-8. 4-13 Page 1 of 1 ...
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This note was uploaded on 02/03/2012 for the course CIVIL ENGI 563 taught by Professor Seepage during the Spring '11 term at Idaho.

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