|Table of Contents|

Optimization of bulge fracture plane searching in foundation pit(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2005年第03期
Page:
44-48
Research Field:
Publishing date:

Info

Title:
Optimization of bulge fracture plane searching in foundation pit
Author(s):
HU Zhi-ping 1; YAO Hai-ming2; LUO Li-juan1
1. School of Civil Engineering, Chang’ an University, Xi’ an 710061,China; 2. Shanghai Second Municipal Engineering Corporation, Shanghai 200092,China
Keywords:
supporting structure;  bulge fracture;  optimization; insertion ratio of supporting structure;  safe index
PACS:
TU431
DOI:
-
Abstract:
Stress status of supporting structure and the retained soil was analyzed with FEM in foundation pit, and the value of limiting status function of retained soil was calculated. With“artificial participation” optimization, the shape and position of potential bulge fracture plane in foundation pit were calculated with the dijkstra algorithm and the relative safety coeffi- cient was proposed. Large scale numeric calculation and in situ measurements show that the end point of potential fracture plane is insensitive to the insertion ratio of supporting pile, that the start point of potential fracture plane is near the support- ing pile when the insertion of pile is increasing. The in situ measurements show the availability and utilization of method of the potential bulge fracture plane searching based on the optimization algorithm in composite optimization.

References:

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Last Update: 1900-01-01