滇池草海副坝基础振冲碎石桩设计与施工

Design & Construction of Vibro-stone Foundation Piling for the Auxiliary Dam of Caohai Project in Dianchi

滇池草海副坝为泥炭、淤泥软基,针对其地质特点及副坝基础承载力要求,采用振冲碎石桩的基础加固处理方案。简述了振冲碎石桩设计指标的确定和施工参数的选择情况,分析了复合地基承载力提高的主要原因,并通过实际施工过程,总结了振冲碎石桩施工质量控制措施和经验。

A foundation reinforcement scheme by vibro-stone column is adopted for the auxiliary dam in Caohai project, considering the geological features and the requirements in bearing capacity of the foundation consisting of mud and mudstone. Briefly introduce the determination of design indices and selection of construction parameters, and analyze the reason that the bearing capacity of the compound foundation is improved. Quality control measures and experience in construction of vibro-stone column is concluded on the basis of construction practice.