淤泥软土地基深基坑施工实践分析  

Construction practice analysis of deep foundation pit in silt soft soil foundation

作　　者：李永科[1] 周宇轩 LI Yong-ke;ZHOU Yu-xuan

机构地区：[1]深圳市水务工程建设管理中心,广东深圳518000

出　　处：《东北水利水电》2022年第11期24-27,58,71,共6页Water Resources & Hydropower of Northeast China

摘　　要：文中以深圳市茅洲河流域的排涝河河口左岸调蓄池工程为案例,从基坑开挖支护结构、降水措施、开挖工艺及安全监测几个方面进行探讨研究,总结出一套适应于沿海地区淤泥质软土地基,安全、高效、经济的关键施工技术,有效解决了深厚淤泥软土层基坑支护结构复杂、稳定性差、大型机械设备开挖难度大、效率低等问题,确保基坑施工处于安全受控状态,施工技术经验对沿海地区类似工程施工具有一定借鉴意义。Taking the left bank of the mouth of the drainage river in Maozhou River BASIN of Shenzhen City AS a case study,This paper discusses the supporting structure of foundation pit excavation,dewatering measures,excavation technology and safety monitoring.A set of safe,efficient and economical key construction techniques adapted to the silt soft soil foundation in coastal areas are summarized,which effectively solve the problems of complex supporting structure,poor stability,difficult excavation of large machinery and equipment,and low efficiency in deep silt soft soil layer,and ensure that the foundation pit construction is in a safe and controlled state.Its construction technology experience has certain reference significance for similar projects in coastal areas.

关 键 词：淤泥软土层 深基坑 支护结构 降水措施 

分 类 号：TV512[水利工程—水利水电工程]