夯扩挤密碎石桩在排涝泵站地基处理中的应用  

Application of Ramming and Expanding Compacted Gravel Pile in Foundation Treatment of Drainage Pump Station

作　　者：赵亚涛 蒋真真 王潇 ZHAO Yatao;JIANG Zhenzhen;WANG Xiao(Beijing Golden River Water Resources&Hydropower Construction Group Co.,Ltd.,Beijing 102206,China)

机构地区：[1]北京金河水务建设集团有限公司,北京102206

出　　处：《中国水能及电气化》2022年第8期46-50,共5页China Water Power & Electrification

摘　　要：通州区两河水网减运沟综合治理工程项目排涝泵站位于北京市通州区潞城镇,属副中心建设重点水利建设项目。地勘资料显示,本工程主要地质为杂填土、粉土、黏性土等,并存在液化土层,其地基承载力差。为解决这一问题,文章通过综合比较分析,提出了消除液化地基、提高地基承载力的方法,即采用夯扩挤密碎石桩对排涝泵站工程进行地基加固处理,并对地基处理效果进行试验检测,结果显示,夯扩挤密碎石桩地基处理方式针对“液化地基及地基承载力弱”的问题成效显著,可为类似工程项目提供参考。The drainage pump station of TongzhouTwo Rivers Network Drainage Ditch Comprehensive Treatment Project is located in Lucheng Town,Tongzhou District,Beijing,which is a key water conservancy project of sub-center construction.Geological exploration data show that main geology of the project includes miscellaneous fill soil,powder soil and clayey soil,etc.,and there is liquefied soil layer.The foundation bearing capacity is poor.The methods of eliminating liquefied foundation and improving the bearing capacity of the foundation are proposed in the paper based on the comprehensive comparative analysis in order to solve the problem.Namely,the ramming and expanding compacted gravel piles are adopted to reinforce the foundation in the drainage pumping station project.The foundation treatment effect is tested.The results show that the treatment method of tamping and expanding compacted gravel pile foundation is effective in solving the problem of“liquefied foundation and weak bearing capacity”,which can provide reference for similar engineering projects.

关 键 词：夯扩挤密碎石桩 排涝泵站 地基处理 

分 类 号：TV675[水利工程—水利水电工程]