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CFG桩复合地基是中国建筑科学研究院地基所20世纪80年代末开发的一项新的地基加固技术,在工民建部门得到推广,近年来,在高速公路建设中开始用于桥头高路堤的软基处理,以解决桥头跳车问题。本文结合河北省邢(台)衡(水)高速公路桥头高路堤的软基处理,对CFG桩等复合地基进行方案比选,并介绍了CFG桩的设计、材料配合比设计以及CFG桩的施工工艺和质量检验。可供同类工程参考。
CFG pile composite foundation is a new foundation reinforcement technology developed by the Institute of Foundation of China Academy of Building Research in the late 1980s and was popularized in the civil construction department. In recent years, it has been used in the construction of expressway for the high bridge embankment Soft foundation treatment to solve the problem of bridge jumping. Based on the soft foundation treatment of Qiaotou high embankment of Xing (Taiwan) Heng (Water) Expressway in Hebei Province, this paper compares and selects the schemes of CFG piles and other composite foundations and introduces the design of CFG piles, the design of material mix and the construction of CFG piles Process and quality inspection. For similar projects for reference.