施工技术 2016年10月上 16 CONSTRUCTION TECHNOLOGY 第45卷第19期 D0I:10.7672/5j52016190016 漫滩地层深基坑稳定性特征机理及支护方案研究* 王永鹏，杨双锁1 2，于洋，刘光宇 (1.太原理工大学矿业工程学院，山西太原030024； 2.重庆大学煤矿灾害动力学与控制国家重点实验室，重庆400030) [摘要]以太原漫滩地区某地铁车站施工为例，研究深基坑支护方案的合理性.采用理论分析与有限元相结合的 方法，考虑基坑开挖的实际步骤，采用FLAC3P对深基坑开挖的全过程进行数值模拟，分析了深基坑地下连续墙的 变形和对周围地表的沉降，得出深基坑采用地下连续墙与内支撑支护形式下基坑变形形式及对周围地表沉降变形 特征，从而验证基坑支护设计方案，对太原地铁车站基坑开挖后续设计及施工方案的优化和改进及变形预测都具 有重要的参考意义. [关键词]深基坑；漫滩地层；地下连续墙；内支撑；沉降；有限元分析 [中图分类号]TU753 [文献标识码]A[文章编号]1002-8498(2016)19-0016-04 Study on the Deep Foundation Excavation Stability Mechanism and Support Scheme in Floodplain Formation Wang Yongpeng' Yang Shuangsuo.2 Yu Yang' Liu Guangyu' (1.College of Mining Technology Taiyuan Unirersity of Technology Taiyuan Shanxi 030024 China; 2.State Key Laboratory of Coal Mine Disaster Dynamics and Control Chongging University Chongging 400030 China) Abstract:Taking a subway station construction in Taiyuan floodplain area as an example the authors study the rationality of supporting scheme of deep foundation excavation.By using the method of theoretical analysis and finite element method the deformation of deep foundation excavation and the deformation characteristics of surrounding ground are analyzed.The deformation and deformation characteristics of foundation exeavation are analyzed.The design scheme is verified and proved to be important for the design of Taiyuan metro station. Key words:deep foundation excavation;floodplain;diaphragm wall;inner support;settlement;finite element analysis 0引言 ...
漫滩地层深基坑稳定性特征机理及支护方案研究.pdf
