Adjustment of phreatic line in seepage analysis by finite element method

Isaacs, L. T. (Lewis Thomas) Adjustment of phreatic line in seepage analysis by finite element method. Brisbane: Dept. of Civil Engineering, University of Queensland, 1979.

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Author Isaacs, L. T. (Lewis Thomas)
Title Adjustment of phreatic line in seepage analysis by finite element method
Place of Publication Brisbane
Publisher Dept. of Civil Engineering, University of Queensland
Publication year 1979
Sub-type Other
Series Research report (University of Queensland. Dept. of Civil Engineering) ; no.CE 2
Language eng
Total number of pages 22
Year available 1979
Subjects 290800 Civil Engineering
Formatted Abstract/Summary

Synopsis

In the application of finite element methods to analysis of seepage through earth dams, previous researchers have reported various methods for adjusting the phreatic line with differing degrees of success in satisfying the exit boundary conditions. 

This paper reviews five such methods for phreatic line adjustment, and reports the results of a set of comparison tests for assessing their relative performance in terms of (a) position of the phreatic line, (b) pore pressures, and (a) estimation of seepage flow rates. 

It is concluded that the method used for the adjustment of the phreatic line makes no significant difference to the results obtained in principal applications and the choice of method depends, therefore, on its suitability for the particular application and the ease with which it can be implemented.

Keyword Earth dams
Seepage
Finite element method
Q-Index Code AX
Q-Index Status Provisional Code
Institutional Status UQ

 
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