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本文叙述了反循环钻孔扩底桩施工技术的应用,重点对反循环钻孔扩底桩施工技术的钻孔、扩孔工艺作较详细的叙述。
This paper describes the application of reverse circulation drilling underpinning pile construction technology, with emphasis on the reverse circulation drilling underpin pile construction technology drilling, reaming process described in more detail.