说明了CFG桩复合地基的加固机理，概述了振动沉管施工工艺和长螺旋钻管内泵压CFG桩施工工艺，指出CFG桩复合地基充分利用桩间土的垂直和水平承载能力，水泥用量少，能极大的降低工程造价，是一种应用广泛的地基加固方法。%This paper explained the reinforcement mechanism of CFG pile composite foundation, summarized the construction technology of vi-bration sinking pipe and long spiral drill pipe inner pump pressure, pointed out that the CFG pile composite foundation full use of piles between soil vertical and horizontal bearing capacity, used small cement consumption, could greatly reduce the engineering cost, was a widely applied foundation reinforcement method.
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