Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bidirectional stirring drilling tool with expanding function and construction method
The invention discloses a bidirectional stirring drilling tool with an expanding function for a stirring pile machine. The bidirectional stirring drilling tool comprises a reducing mechanism, a drill rod assembly, a bidirectional stirring drill bit, a hydraulic mechanism, a power unit, a hanging assembly and a grouting unit. The upper ends and the lower ends of the two sets of hydraulic mechanisms are fixedly connected to a double-side upper supporting plate and a double-side lower supporting plate of the suspension assembly respectively, the double-side upper supporting plate and the double-side lower supporting plate are fixedly connected with the upper power head and the lower power head respectively, and a reducing mechanism is arranged on the outer drill rod. The hydraulic mechanism is used for driving the reducing mechanism to perform reducing action, the reducing mechanism moves in the circumferential direction under the power action of the power unit, so that the hole diameter of a formed hole of the drilling tool is changed, and in addition, a slurry spraying opening is further formed in the reducing mechanism. The invention further provides a construction method of the bidirectional stirring drilling tool with the expanding function. In the invention, the reducing amount of the bidirectional stirring pile can be accurately controlled through the hydraulic system, the pressure grouting of the reducing part can be realized by utilizing the guniting port in the reducing mechanism, and finally, the local diameter expansion of the bidirectional stirring pile at any pile section is realized.
本发明的一种搅拌桩机用带扩径功能的双向搅拌钻具，包括变径机构、钻杆组件、双向搅拌钻头、液压机构、动力单元、悬挂组件和注浆单元；两套液压机构上下端分别固定连接在悬挂组件的双侧上托板和双侧下托板上，双侧上托板和双侧下托板分别与上动力头和下动力头固定连接，外钻杆上设置变径机构；液压机构用于驱使变径机构变径动作，且变径机构在动力单元的动力作用下沿周向运动，从而改变钻具成孔孔径，此外变径机构内还设有喷浆口。本发明还提供了一种带扩径功能的双向搅拌钻具的施工方法。本发明中，通过液压系统可精确控制双向搅拌桩的变径量，利用变径机构内的喷浆口可实现变径部分的压力注浆，最终实现双向搅拌桩在任意桩段的局部扩径。
Bidirectional stirring drilling tool with expanding function and construction method
The invention discloses a bidirectional stirring drilling tool with an expanding function for a stirring pile machine. The bidirectional stirring drilling tool comprises a reducing mechanism, a drill rod assembly, a bidirectional stirring drill bit, a hydraulic mechanism, a power unit, a hanging assembly and a grouting unit. The upper ends and the lower ends of the two sets of hydraulic mechanisms are fixedly connected to a double-side upper supporting plate and a double-side lower supporting plate of the suspension assembly respectively, the double-side upper supporting plate and the double-side lower supporting plate are fixedly connected with the upper power head and the lower power head respectively, and a reducing mechanism is arranged on the outer drill rod. The hydraulic mechanism is used for driving the reducing mechanism to perform reducing action, the reducing mechanism moves in the circumferential direction under the power action of the power unit, so that the hole diameter of a formed hole of the drilling tool is changed, and in addition, a slurry spraying opening is further formed in the reducing mechanism. The invention further provides a construction method of the bidirectional stirring drilling tool with the expanding function. In the invention, the reducing amount of the bidirectional stirring pile can be accurately controlled through the hydraulic system, the pressure grouting of the reducing part can be realized by utilizing the guniting port in the reducing mechanism, and finally, the local diameter expansion of the bidirectional stirring pile at any pile section is realized.
本发明的一种搅拌桩机用带扩径功能的双向搅拌钻具，包括变径机构、钻杆组件、双向搅拌钻头、液压机构、动力单元、悬挂组件和注浆单元；两套液压机构上下端分别固定连接在悬挂组件的双侧上托板和双侧下托板上，双侧上托板和双侧下托板分别与上动力头和下动力头固定连接，外钻杆上设置变径机构；液压机构用于驱使变径机构变径动作，且变径机构在动力单元的动力作用下沿周向运动，从而改变钻具成孔孔径，此外变径机构内还设有喷浆口。本发明还提供了一种带扩径功能的双向搅拌钻具的施工方法。本发明中，通过液压系统可精确控制双向搅拌桩的变径量，利用变径机构内的喷浆口可实现变径部分的压力注浆，最终实现双向搅拌桩在任意桩段的局部扩径。
Bidirectional stirring drilling tool with expanding function and construction method
一种带扩径功能的双向搅拌钻具及施工方法
LAN WEI (Autor:in) / LIU ZHONG (Autor:in) / LI GUOMIN (Autor:in) / YU TAOXI (Autor:in) / YANG NINGYE (Autor:in) / CAI YUANQIANG (Autor:in) / ZHANG CHUFU (Autor:in) / YANG ZHONGXUAN (Autor:in) / CHEN TIANXIONG (Autor:in) / WANG ZHANCHOU (Autor:in)
18.04.2023
Patent
Elektronische Ressource
Chinesisch
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