Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sleeve type drill bit and composite pile foundation construction method
The invention discloses a casing type drill bit and a composite pile foundation construction method. The casing type drill bit comprises a circular-tube-shaped drill bit body, and the inner diameter of the drill bit body is larger than the diameter of a core pile; the blades are welded to the drill bit body, the number of the blades is at least two, the blades are arranged on the outer side of the drill bit body in a circumferential array mode, the blades are arranged in pairs, and each pair of blades are staggered in the shape direction of the drill bit body; the number of the slurry feeding pipes is two, and the slurry feeding pipes are symmetrically installed on the side wall of the drill bit body. The slurry spraying opening is located in the bottom of the slurry feeding pipe and comprises an outer slurry spraying opening body and an inner slurry spraying opening body. The composite pile foundation is constructed in the mode that the core pile is constructed firstly and then the cement pile is constructed on the outer surface of the core pile, a traditional construction method is changed, the core pile does not need to be constructed before the cement mixing pile is solidified, the construction process is simplified, the cement consumption is reduced, investment is saved, and construction requirements are reduced. The invention relates to the technical field of civil engineering.
本发明公开了一种套管型钻头及复合桩基施工方法，套管型钻头包括圆管状的钻头本体，钻头本体的内径大于芯桩的直径；叶片，叶片焊接在钻头本体上，叶片的数量为至少两个且均在钻头本体的外侧圆周阵列排布，叶片成对设置且各对叶片沿钻头本体的形体方向错开；送浆管，送浆管的数量为两个，分别对称安装在钻头本体的侧壁；喷浆口，其位于送浆管底部，包括外喷浆口和内喷浆口。本发明通过先施工芯桩，再在其外表面施工水泥桩的方式进行复合桩基的施工，改变了传统的施工工法，无需赶在水泥搅拌桩凝固前再施工芯桩，简化了施工流程、降低水泥用量，节省投资并降低了施工要求。本发明涉及土木工程技术领域。
Sleeve type drill bit and composite pile foundation construction method
The invention discloses a casing type drill bit and a composite pile foundation construction method. The casing type drill bit comprises a circular-tube-shaped drill bit body, and the inner diameter of the drill bit body is larger than the diameter of a core pile; the blades are welded to the drill bit body, the number of the blades is at least two, the blades are arranged on the outer side of the drill bit body in a circumferential array mode, the blades are arranged in pairs, and each pair of blades are staggered in the shape direction of the drill bit body; the number of the slurry feeding pipes is two, and the slurry feeding pipes are symmetrically installed on the side wall of the drill bit body. The slurry spraying opening is located in the bottom of the slurry feeding pipe and comprises an outer slurry spraying opening body and an inner slurry spraying opening body. The composite pile foundation is constructed in the mode that the core pile is constructed firstly and then the cement pile is constructed on the outer surface of the core pile, a traditional construction method is changed, the core pile does not need to be constructed before the cement mixing pile is solidified, the construction process is simplified, the cement consumption is reduced, investment is saved, and construction requirements are reduced. The invention relates to the technical field of civil engineering.
本发明公开了一种套管型钻头及复合桩基施工方法，套管型钻头包括圆管状的钻头本体，钻头本体的内径大于芯桩的直径；叶片，叶片焊接在钻头本体上，叶片的数量为至少两个且均在钻头本体的外侧圆周阵列排布，叶片成对设置且各对叶片沿钻头本体的形体方向错开；送浆管，送浆管的数量为两个，分别对称安装在钻头本体的侧壁；喷浆口，其位于送浆管底部，包括外喷浆口和内喷浆口。本发明通过先施工芯桩，再在其外表面施工水泥桩的方式进行复合桩基的施工，改变了传统的施工工法，无需赶在水泥搅拌桩凝固前再施工芯桩，简化了施工流程、降低水泥用量，节省投资并降低了施工要求。本发明涉及土木工程技术领域。
Sleeve type drill bit and composite pile foundation construction method
一种套管型钻头及复合桩基施工方法
HE CHANGMING (Autor:in) / PENG GONGXUN (Autor:in) / LI JUN (Autor:in) / XIONG YONG (Autor:in) / ZENG CHUHUI (Autor:in) / XIAO LITUO (Autor:in) / QIAN CHAOQING (Autor:in) / LIN YISHEN (Autor:in)
18.11.2022
Patent
Elektronische Ressource
Chinesisch
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