|Table of Contents|

Application of Local Factor of Safety Method in Slope Stability Analysis(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2008年02期
Page:
36-40
Research Field:
Publishing date:
2008-06-20

Info

Title:
Application of Local Factor of Safety Method in Slope Stability Analysis
Author(s):
LI Liang1;  WANG Yu-jie1;  ZHENG Rong-ming2
1. Institute of Geotechnical Engineering, China Institute of Water Resources and Hydropower Research, Beijing 100044, China; 2. Department of Civil and Structural Engineering,The Hong Kong Polytechnic University, Hong Kong, China
Keywords:
slope stability analysis;  limit equilibrium method;  Pan Jia-zheng maximum principle;  local factor of safety
PACS:
TU441
DOI:
-
Abstract:
It was assumed that the values of local factors of safety for each slice were different to those of total factor of safety of slip surface. A new method for determining the total factor of safety for given slip surface was presented by using Pan Jia-zheng maximum principle and optimization algorithm. The thrusting force line and inclination angles of slice forces were taken as optimization variables for given slip surface. The acceptable force vectors which gave the maximum value of factors of safety were determined and the corresponding factors of safety for given slip surface were also determined. In most feasible slip surfaces, the minimum slip surfaces of total factor of safety were taken as critical slip surface. Finally, the new method was adopted to study the examples used by Australia Computer Aided Design Society(ACADS)and in the existing literatures, the comparative studies have shown that the new method is rational and feasible and can be used in stability analysis.

References:

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Last Update: 2008-06-20