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武广客运专线某标段软层地基采用预应力管桩加固技术,有效地解决软土地基承载力小、工后沉降量大的难题。介绍预应力管桩加固地基的施工工艺、桩的质量检验、施工中应注意的问题。
The soft foundation of a certain section of the Wuhan-Guangzhou Passenger Dedicated Line adopts prestressed pipe-pile reinforcement technology to effectively solve the problem of small bearing capacity of soft-soil foundation and large settlement after construction. This paper introduces the construction technology of prestressed pipe pile foundation, quality inspection of pile, problems needing attention in construction.