辽宁工程技术大学学报（自然科学版）2024，Vol.43Issue(6)：648-655,8.DOI:10.11956/j.issn.1008-0562.20230314
基于破坏接近度的深基坑稳定性研究
Stability analysis of deep foundation pit based on failure approach index
摘要
Abstract
To investigate the deformation and failure patterns of deep foundation pit during the excavation process and quantitatively assess the safety of the excavation,the stress state of the excavation soil was analyzed using FLAC3D software and the failure approach index(FAI)theory.This analysis quantified the extent and range of damage to the surrounding soil of the excavation.The results indicate that the deformation of the retaining piles around the excavation exhibits a"small at both ends,large in the middle"characteristic,while the ground surface settlement deformation presents a"trough"shape.The failure approach index can intuitively reflect the degree of damage and evolutionary patterns of the rock and soil masses during excavation,quantifying the impact scope of excavation construction.The research conclusions provide a theoretical reference for quantifying the risk of foundation pit construction.关键词
深基坑/稳定性/破坏接近度/变形Key words
deep foundation pit/stability/failure approach index/deformation分类
建筑与水利引用本文复制引用
姚家李,姚华彦,成潇博,张占荣,张燕..基于破坏接近度的深基坑稳定性研究[J].辽宁工程技术大学学报（自然科学版）,2024,43(6):648-655,8.基金项目
长三角科技创新共同体联合攻关课题(2022CSJGG1205) （2022CSJGG1205）
