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Novel steel pipe stiff composite pile construction device and construction method thereof
The invention relates to a novel steel pipe stiff composite pile construction device and a construction method thereof. The novel steel pipe stiff composite pile construction device comprises a support, a thin-wall steel pipe, a stirring drill bit, a grouting mechanism, a clamping device, an expander, a rotating mechanism and a lifting mechanism. The slewing mechanism is connected with the support through the lifting mechanism and connected with the clamping device, the clamping device is clamped on the thin-wall steel pipe, the stirring drill bit is fixedly connected to the bottom end of the thin-wall steel pipe, a grouting pipe of the grouting mechanism is arranged in the thin-wall steel pipe, the grout outlet end of the grouting pipe is communicated with a grout spraying opening in the stirring drill bit, and the grouting pipe is sleeved with the expander. The sleeving position of the expander is flush with the clamping device; wherein the wall thickness of the thin-wall steel pipe is 3-6mm, and the cross section size of the upper part of the thin-wall steel pipe is larger than that of the lower part of the thin-wall steel pipe. The construction method has the beneficial effects that the operation requirement can be met through the thin-wall steel pipe with the wall thickness of 3-6mm, and the construction cost is greatly reduced. And the thin-wall steel pipe is designed into a structural form with variable cross sections from top to bottom, so that the principle of soil mechanics is met, and the cost can be further reduced.
本发明涉及一种新型钢管劲性复合桩施工装置及其施工方法，包括支座、薄壁钢管、搅拌钻头、注浆机构、夹持器、扩张器、回转机构、升降机构；回转机构通过升降机构连接支座，回转机构连接夹持器，夹持器夹持于薄壁钢管，搅拌钻头固定连接于薄壁钢管的底端，注浆机构的注浆管设于薄壁钢管内，注浆管的出浆端连通搅拌钻头上的喷浆口，扩张器套接于注浆管，并扩张器的套接位置与夹持器相平齐；其中，薄壁钢管的壁厚为3～6mm，薄壁钢管上部的横截面尺寸大于薄壁钢管下部的横截面尺寸。其有益效果是，通过3～6mm壁厚的薄壁钢管即可满足作业需求，大大降低了施工成本。并且将薄壁钢管设计为由上到下变截面的结构形式，既符合土力学原理，又能进一步降低成本。
Novel steel pipe stiff composite pile construction device and construction method thereof
The invention relates to a novel steel pipe stiff composite pile construction device and a construction method thereof. The novel steel pipe stiff composite pile construction device comprises a support, a thin-wall steel pipe, a stirring drill bit, a grouting mechanism, a clamping device, an expander, a rotating mechanism and a lifting mechanism. The slewing mechanism is connected with the support through the lifting mechanism and connected with the clamping device, the clamping device is clamped on the thin-wall steel pipe, the stirring drill bit is fixedly connected to the bottom end of the thin-wall steel pipe, a grouting pipe of the grouting mechanism is arranged in the thin-wall steel pipe, the grout outlet end of the grouting pipe is communicated with a grout spraying opening in the stirring drill bit, and the grouting pipe is sleeved with the expander. The sleeving position of the expander is flush with the clamping device; wherein the wall thickness of the thin-wall steel pipe is 3-6mm, and the cross section size of the upper part of the thin-wall steel pipe is larger than that of the lower part of the thin-wall steel pipe. The construction method has the beneficial effects that the operation requirement can be met through the thin-wall steel pipe with the wall thickness of 3-6mm, and the construction cost is greatly reduced. And the thin-wall steel pipe is designed into a structural form with variable cross sections from top to bottom, so that the principle of soil mechanics is met, and the cost can be further reduced.
本发明涉及一种新型钢管劲性复合桩施工装置及其施工方法，包括支座、薄壁钢管、搅拌钻头、注浆机构、夹持器、扩张器、回转机构、升降机构；回转机构通过升降机构连接支座，回转机构连接夹持器，夹持器夹持于薄壁钢管，搅拌钻头固定连接于薄壁钢管的底端，注浆机构的注浆管设于薄壁钢管内，注浆管的出浆端连通搅拌钻头上的喷浆口，扩张器套接于注浆管，并扩张器的套接位置与夹持器相平齐；其中，薄壁钢管的壁厚为3～6mm，薄壁钢管上部的横截面尺寸大于薄壁钢管下部的横截面尺寸。其有益效果是，通过3～6mm壁厚的薄壁钢管即可满足作业需求，大大降低了施工成本。并且将薄壁钢管设计为由上到下变截面的结构形式，既符合土力学原理，又能进一步降低成本。
Novel steel pipe stiff composite pile construction device and construction method thereof
一种新型钢管劲性复合桩施工装置及其施工方法
YU RONGXI (author) / QIN LIXIN (author) / JI SHAOFENG (author) / LONG FEI (author) / LI RUI (author) / WU XIAOJUAN (author) / FENG ZHUOXIN (author) / DUAN BING (author) / PENG JUAN (author) / LIU QIYUAN (author)
2023-07-07
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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