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A platform for research: civil engineering, architecture and urbanism
Single-shaft cement-soil mixing pile drill bit and construction method of cement mixing pile using same
The invention discloses a single-shaft cement-soil mixing pile drill bit and a construction method of a cement mixing pile using the same. The single-shaft cement-soil mixing pile drill bit comprises a drill shaft provided with a slurry outlet and at least two pairs of blades, each pair of blades are arranged perpendicular to the axis of the drill shaft and arranged on the drill shaft in a layered mode, the width direction of the blades and the axis of the drill spindle are arranged in an inclined and crossed mode, and the inclination directions of two blades in each pair are opposite. According to the drill bit and the method, a soil body in a pile diameter is subjected to primary crushing and cutting in opposite directions through the two blades which are arranged in pairs in opposite inclined directions, and soil bodies on the two sides of the drill shaft are pressed and crushed in the rotating process to form secondary crushing and cutting; and meanwhile, cutting teeth arranged on the blades are used for carrying out tertiary crushing and cutting on a soil body generated by through primary crushing and cutting and secondary crushing and cutting, so that the purpose of efficiently and uniformly crushing the soil body is achieved, and the uniformity of the stirred soil body and the pile forming quality are further improved.
本发明公开了一种单轴水泥土搅拌桩钻头及其水泥搅拌桩的施工方法，包括开设出浆口的钻轴、至少两对叶片，每对所述叶片沿所述钻轴轴线的垂直方向布置，每对所述叶片分层布置在所述钻轴上，所述叶片的宽度方向与所述钻轴的轴线倾斜交叉布置，且每对中两个所述叶片的倾斜方向相反；本发明通过成对倾斜方向相反设置的两个叶片对桩径内的土体进行方向相反的第一次破碎切削，旋转过程中使钻轴的两侧土体进行挤压破碎形成第二次破碎切削，同时设置于叶片上的切削齿对第一次破碎切削和第二次破碎切削产生的土体进行第三次破碎切削，从而达到对土体高效、均匀破碎的目的，进而提高了搅拌土体的均匀性和成桩的质量。
Single-shaft cement-soil mixing pile drill bit and construction method of cement mixing pile using same
The invention discloses a single-shaft cement-soil mixing pile drill bit and a construction method of a cement mixing pile using the same. The single-shaft cement-soil mixing pile drill bit comprises a drill shaft provided with a slurry outlet and at least two pairs of blades, each pair of blades are arranged perpendicular to the axis of the drill shaft and arranged on the drill shaft in a layered mode, the width direction of the blades and the axis of the drill spindle are arranged in an inclined and crossed mode, and the inclination directions of two blades in each pair are opposite. According to the drill bit and the method, a soil body in a pile diameter is subjected to primary crushing and cutting in opposite directions through the two blades which are arranged in pairs in opposite inclined directions, and soil bodies on the two sides of the drill shaft are pressed and crushed in the rotating process to form secondary crushing and cutting; and meanwhile, cutting teeth arranged on the blades are used for carrying out tertiary crushing and cutting on a soil body generated by through primary crushing and cutting and secondary crushing and cutting, so that the purpose of efficiently and uniformly crushing the soil body is achieved, and the uniformity of the stirred soil body and the pile forming quality are further improved.
本发明公开了一种单轴水泥土搅拌桩钻头及其水泥搅拌桩的施工方法，包括开设出浆口的钻轴、至少两对叶片，每对所述叶片沿所述钻轴轴线的垂直方向布置，每对所述叶片分层布置在所述钻轴上，所述叶片的宽度方向与所述钻轴的轴线倾斜交叉布置，且每对中两个所述叶片的倾斜方向相反；本发明通过成对倾斜方向相反设置的两个叶片对桩径内的土体进行方向相反的第一次破碎切削，旋转过程中使钻轴的两侧土体进行挤压破碎形成第二次破碎切削，同时设置于叶片上的切削齿对第一次破碎切削和第二次破碎切削产生的土体进行第三次破碎切削，从而达到对土体高效、均匀破碎的目的，进而提高了搅拌土体的均匀性和成桩的质量。
Single-shaft cement-soil mixing pile drill bit and construction method of cement mixing pile using same
一种单轴水泥土搅拌桩钻头及其水泥搅拌桩的施工方法
ZHU XUELIN (author) / ZHU GUODONG (author) / ZHU LIHONG (author) / ZHAI KAIFU (author)
2021-06-15
Patent
Electronic Resource
Chinese
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