吹填区宕渣回填地基变形机理研究  

Research on Deformation Mechanism of Slag Backfill Foundation in Reclamation Area

作　　者：王彦虎 Wang Yanhu(Municipal Engineering Company of China Railway Tunnel Bureau Group Co.,Ltd.,Hangzhou 310030,China)

机构地区：[1]中铁隧道局集团有限公司市政工程公司,浙江杭州310030

出　　处：《市政技术》2024年第5期82-91,103,共11页Journal of Municipal Technology

基　　金：浙江省基础公益研究计划项目(LGF19E080013)。

摘　　要：为了研究吹填区宕渣回填地基变形机理,以浙江省温州市某吹填区地基宕渣填筑工程为研究对象,采用数值模拟与参数敏感性相结合的研究方法,运用PLAXIS软件对现场宕渣回填过程中地基变形现象进行了反演分析,并通过参数敏感性分析找出了地基变形的关键影响因素。研究结果表明,土体的弹性模量、泊松比以及地下水位的变化对地基变形影响较大,而土体的内摩擦角、黏聚力的变化对地基变形影响较小。In order to study the deformation mechanism of the foundation backfilled with slag in reclamation area,a reclamation area foundation slag filling project in Wenzhou,Zhejiang Province is taken as the research object.The numerical simulation and parameter sensitivity are adopted to be the research method.The foundation deformation phenomenon in the process of on-site slag backfilling is analyzed by PLAXIS software.The key influencing factors of the foundation deformation is found out by parameter sensitivity analysis.The research results show that the changes of elastic modulus,Poisson's ratio and groundwater level of soil have great influence on the deformation of foundation.While the changes of internal friction angle and cohesion of soil have little influence on the deformation of foundation.

关 键 词：地基 变形 宕渣 回填 吹填区 

分 类 号：U416.1[交通运输工程—道路与铁道工程]