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Title |
Piping Analysis for Excavation in a Embankment
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Keywords |
한계동수경사 ; 한계속도 ; 유선망 ; 파이핑 Critical hydraulic gradient ; Critical velocity ; Flow net ; Piping |
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Abstract |
One of the cause of embankment failure for piping is a routine design for piping consideration without exact understanding of that. Therefore, in this study, comparison and analysis of existing piping consideration methods had been conducted through embankment sections when sheet piles constructed on sandy ground. For the Terzaghi method and the critical hydraulic method, safety factors were changed up to double depending on the method. And for the critical velocity method, it was dramatically changed due to design parameters. Consequently, existing piping consideration method currently used is recommended not to be applied to all ground conditions uniformly but to applied with exact understanding of each consideration method characteristics depending on ground conditions.
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