某深基坑不同桩-锚组合结构相互作用影响分析
Analysis of the Interaction Effect of Different Pile-anchor Combination Structures in a Deep Foundation Pit
姚志伟 1樊振华 1游祥 1李峰 1刘闯1
作者信息
- 1. 宝业湖北建工集团有限公司 武汉市 430000
- 折叠
摘要
该文以宜昌某超高层建筑深基坑为例,通过建立三维有限元模型,研究了不同支护组合条件下支护结构内力和基坑的变形演化规律,结合基坑开挖不同阶段的变形监测数据,提出了基于典型部位支护桩位移与锚内力的多量纲空间模型验证方法,进一步揭示了深基坑开挖过程中不同支护组合内力变化规律以及支护组合结构之间的相互影响.研究成果可对深基坑组合支护设计方案的选择提供依据,对深基坑变形控制技术发展具有重要的工程意义.
Abstract
Taking the deep foundation pit of a super high-rise building in Yichang as an example,by es-tablishing a three-dimensional finite element model,the internal force of the support structure and the de-formation evolution law of the foundation pit under different support combinations are studied in this pa-per.Combined with the deformation monitoring data of different stages of foundation pit excavation,a multi-dimensional space model verification method based on the displacement of support piles and the in-ternal force of anchors in typical parts is proposed.The law of change of internal force of different support combinations and the interaction of support combination structures in the process of deep foundation pit excavation are further revealed according to the calculation results.The research results can provide a ba-sis for the selection of combined support design schemes for deep foundation pits,which is of great engi-neering significance for the development of deep foundation pit deformation control technology.
关键词
深基坑/基坑开挖/桩-锚组合/结构相互影响/多量纲模型Key words
deep foundation pit/foundation pit excavation/pile-anchor combination/structural interac-tion/multi-dimensional model verification引用本文复制引用
出版年
2024
NETL
NSTL
万方数据