基于平面应变比的深基坑工程支护结构优化设计研究
RESEARCH ON OPTIMAL DESIGN OF SUPPORT STRUCTURE FOR DEEP FOUNDATION PIT ENGINEERING BASED ON PLANE STRAIN RATIO
徐建军1
作者信息
- 1. 山东岩土勘测设计研究院有限公司,山东青岛 264000
- 折叠
摘要
基坑开挖是一个三维空间过程.以实际深基坑工程为背景,借助岩土工程有限元分析软件PLAXIS 3D进行三维建模,分析了基坑工程在三维条件下的变形特性,并引入平面应变比概念对支护结构进行优化.结果表明:基坑拐角效应对变形存在显著影响,通过考虑平面应变比对基坑支护结构进行优化设计,能够在保证安全的前提下节约成本,优化效果显著.研究成果可为类似工程的设计、优化提供参考.
Abstract
Foundation pit excavation is a three-dimensional spatial process.Based on the background of actual deep foundation pit engineering,three-dimensional modeling was carried out with the help of geotechnical finite element analysis software PLAXIS 3 D,the deformation characteristics of foundation pit engineering under three-dimensional conditions were analyzed,and the concept of plane strain ratio was introduced to optimize the supporting structure.The results show that the corner effect of foundation pit has a significant influence on the deformation.By considering the plane strain ratio,the optimization design of foundation pit supporting structure can save the cost under the premise of ensuring the safety,and the optimization effect is remarkable.The research results can provide reference for the design and optimization of similar projects.
关键词
深基坑/平面应变比/拐角效应/优化设计Key words
deep foundation pit/plane strain ratio/corner effect/optimal design引用本文复制引用
出版年
2024
NETL
NSTL
万方数据