|Table of Contents|

Stability analysis of finite element strength reduction method on stepwise excavating high slope

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2015年04期
Page:
488-
Research Field:
Publishing date:

Info

Title:
Stability analysis of finite element strength reduction method on stepwise excavating high slope
Author(s):
Li Hong
School of Transportation,Wuhan University of Technology,Wuhan 430063,China
Keywords:
slope stability strength reduction method stepwise excavation limit equilibrium method finite element analysis comparison
PACS:
TU43
DOI:
-
Abstract:
The commonly used two methods of slope stability evaluation are interpreted.Using finite element strength reduction method,the high slope stability which is excavated stepwise is analyzed.It is found that the safety factors increase after it is excavated stepwise.The first four class platforms after excavation show that the safety factors increase slowly by 0.02 at most,but after the last class platform is excavated,the safety factors increase sharply by 0.04.Also,the slip zone's position basically remains unchanged after the first four class platforms'excavation,while the slip zone's position changes obviously after the last two class platforms' excavation.Finally,the safety factors calculated by GEO-SLOPE is similar to that calculated by the finite element strength reduction method.The results show the application of the finite element strength reduction method is reasonable.

References:

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Last Update: 2015-08-31