A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Push type self-retaining wall pore-forming cast-in-place pile auger bit and drilling method
The invention relates to the technical field of constructional engineering, in particular to a push-press type self-retaining wall pore-forming cast-in-place pile auger bit and a drilling method. Comprising a dado outer cylinder with the upper end and the lower end opened, and a main shaft coaxially arranged in the dado outer cylinder. A spiral blade is arranged on the main shaft; the spiral blade is connected with the inner wall of the protective wall outer cylinder; the lower end of the main shaft is sleeved with a main drill bit capable of sliding up and down; the lower end of the spindle is connected with the dado outer cylinder through a shaft lever; a blade seat capable of axially sliding is arranged on the shaft rod; blades are arranged on the blade seat; through holes matched with the corresponding blades are formed in the side wall of the protective wall outer cylinder; a movable rod is hinged between the main drill bit and the blade seat; auxiliary drills are distributed on the side wall of the movable rod; a grout outlet hole for outputting concrete grout and a liquid outlet hole for outputting an accelerator are formed in the blade. According to the invention, the self-protection wall of the cement-mixed soil can be realized, and the cement-mixed soil protection wall can be rapidly formed by injecting cement paste and an accelerator into the protection wall layer during hole forming.
本发明涉及建筑工程技术领域，具体为推压式自护壁成孔灌注桩螺旋钻头及钻孔方法。包括上下两端敞口的护壁外筒，及同轴设置在护壁外筒内的主轴；主轴上设置有螺旋叶片；螺旋叶片与护壁外筒内壁相连；主轴中空，下端套接有可上下滑动的主钻头；主轴下端通过轴杆与护壁外筒连接；轴杆上设置有可轴向滑动的叶片座；叶片座上设置有叶片；护壁外筒侧壁上设置有与对应叶片配合的穿孔；主钻头与叶片座之间铰接有活动杆；活动杆侧壁分布有副钻头；叶片上设置有用于输出混凝土浆的出浆孔和用于输出速凝剂的出液孔。本发明能够实现水泥搅拌土自护壁，成孔的同时可实现在护壁层注入水泥浆和速凝剂搅拌快速形成水泥搅拌土护壁。
Push type self-retaining wall pore-forming cast-in-place pile auger bit and drilling method
The invention relates to the technical field of constructional engineering, in particular to a push-press type self-retaining wall pore-forming cast-in-place pile auger bit and a drilling method. Comprising a dado outer cylinder with the upper end and the lower end opened, and a main shaft coaxially arranged in the dado outer cylinder. A spiral blade is arranged on the main shaft; the spiral blade is connected with the inner wall of the protective wall outer cylinder; the lower end of the main shaft is sleeved with a main drill bit capable of sliding up and down; the lower end of the spindle is connected with the dado outer cylinder through a shaft lever; a blade seat capable of axially sliding is arranged on the shaft rod; blades are arranged on the blade seat; through holes matched with the corresponding blades are formed in the side wall of the protective wall outer cylinder; a movable rod is hinged between the main drill bit and the blade seat; auxiliary drills are distributed on the side wall of the movable rod; a grout outlet hole for outputting concrete grout and a liquid outlet hole for outputting an accelerator are formed in the blade. According to the invention, the self-protection wall of the cement-mixed soil can be realized, and the cement-mixed soil protection wall can be rapidly formed by injecting cement paste and an accelerator into the protection wall layer during hole forming.
本发明涉及建筑工程技术领域，具体为推压式自护壁成孔灌注桩螺旋钻头及钻孔方法。包括上下两端敞口的护壁外筒，及同轴设置在护壁外筒内的主轴；主轴上设置有螺旋叶片；螺旋叶片与护壁外筒内壁相连；主轴中空，下端套接有可上下滑动的主钻头；主轴下端通过轴杆与护壁外筒连接；轴杆上设置有可轴向滑动的叶片座；叶片座上设置有叶片；护壁外筒侧壁上设置有与对应叶片配合的穿孔；主钻头与叶片座之间铰接有活动杆；活动杆侧壁分布有副钻头；叶片上设置有用于输出混凝土浆的出浆孔和用于输出速凝剂的出液孔。本发明能够实现水泥搅拌土自护壁，成孔的同时可实现在护壁层注入水泥浆和速凝剂搅拌快速形成水泥搅拌土护壁。
Push type self-retaining wall pore-forming cast-in-place pile auger bit and drilling method
推压式自护壁成孔灌注桩螺旋钻头及钻孔方法
ZENG YONGLI (author)
2022-06-24
Patent
Electronic Resource
Chinese
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