复杂周边环境下深基坑支护方案选型及数值分析  

Selection and Numerical Analysis of Deep Foundation Pit Support Scheme Under Complex Surrounding Environment

作　　者：谢昊 李大华 张朋仁 XIE Hao;LI Dahua;ZHANG Pengren(School of Civil Engineering,Anhui University of Architecture,Hefei 230601,China;Anhui Construction Engineering Sanjian Group Co.,Ltd.,Hefei 230601,China)

机构地区：[1]安徽建筑大学土木工程学院,安徽合肥230601 [2]安徽建工三建集团有限公司,安徽合肥230601

出　　处：《湖南工业大学学报》2025年第3期24-30,38,共8页Journal of Hunan University of Technology

基　　金：国家自然科学基金资助面上项目(52374073);马鞍山首建工程咨询有限公司与安徽建筑大学合作基金资助项目(HYB20220091)。

摘　　要：为研究复杂周边环境下多种基坑支护形式的共同作用效果,以某周边建筑环境复杂深基坑项目为例,通过基坑支护经验与理论计算分析,最终采用排桩+斜撑、内支撑、预留反压土等多种支护方式,对支护桩顶部位移、深层水平位移、支撑内力、周边竖向位移进行监测,并结合MIDAS GTS NX进行有限元分析,对实际监测数据与有限元分析数据进行对比分析,结果显示较为吻合,表明多种支护方案结合合理可靠,达到了支护效果。In order to study the interaction effect of multiple foundation pit support forms in complex surrounding environment,with a deep foundation pit project with complex surrounding building environment taken as an example,based on the analysis of pit support experience and theoretical calculations,a variety of support methods has thus been adopted including row piles+slant support,internal bracing,reserved back pressure soil,etc.A monitoring has been made of the top displacement,deep horizontal displacement,internal support force,and vertical displacement around the support piles,with a finite element analysis conducted by using MIDAS GTS NX,followed by a comparison and analysis of the actual monitoring data with the finite element analysis data.The results show a good agreement,indicating that the combination of multiple support schemes is reasonable and reliable,thus achieving the support effect.

关 键 词：深基坑 基坑支护 斜撑 内支撑 反压土 有限元分析 

分 类 号：TU473.2[建筑科学—结构工程]