天津滨海软土地区深基坑支护结构的设计与实践

摘要

针对天津滨海软土地区某工程深基坑的周边环境条件,分别采用双排桩(附加角支撑)、三排桩、悬臂式水泥挡土墙及开挖边坡等多种支护形式进行方案比较,重点介绍该项目深基坑支护结构的设计方法.本工程深基坑开挖的效果良好,取得较好的社会效益和经济效益,可供类似工程参考.%Based on the environmental conditions around the deep foundation ditch within Tianjin coastal soft soil area, we make comparison of design study which include two-wall piling structure (with included-angle support), three-wall piling structure, cantilever cement retaining wall, slope excavation and other supporting structures, and introduce the design of deep foundation ditch supporting structure as a key point. The engineering practice proves that the excavation of deep foundation ditch is effective, and brings us better social and economic benefits, which will provide references for similar projects.