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Cyclic drilling machine with function of hydraulic hole expansion and construction method for hole-expanded pile

A drilling rig and hydraulic technology, applied in drilling equipment and methods, sheet pile walls, drilling equipment, etc., to achieve the effect of good hole reaming quality, high efficiency and stable reaming effect

Pending Publication Date: 2020-11-24
江苏省中成建设工程总公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The various hole reaming technologies mentioned above have certain defects in hole

Method used

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  • Cyclic drilling machine with function of hydraulic hole expansion and construction method for hole-expanded pile

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Embodiment Construction

[0019] The following will be further described in conjunction with specific embodiments, but the following specific embodiments should not be construed as limiting the subject invention. Various modifications and variations that can be obviously made by those skilled in the art on the basis of the present invention should all fall within the scope of the present invention.

[0020] like figure 1 , embodiments of the present invention include:

[0021] A hydraulic reaming circular drilling rig, comprising a fixed frame, a beam, a power unit, a drill rod, a connecting head, a drill bit, a collar, an expansion rod, a hydraulic device and drilling teeth, and a beam is fixedly installed on the upper end of the fixed frame; A power unit is fixedly installed in the center of the beam; a drill pipe is installed in the power unit; a connector is fixedly installed at the lower end of the drill rod; a drill bit is fixedly installed at the lower end of the connector; the collar is sleeve...

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Abstract

The invention discloses a cyclic drilling machine with a function of hydraulic hole expansion and a construction method for a hole-expanded pile. The cyclic drilling machine with the function of hydraulic hole expansion comprises a fixed frame, a cross beam, a power device, a drilling rod, a connection head, a drilling bit, a lantern ring, an expansion rod, a hydraulic device and drilling teeth, wherein the drilling rod can be lengthened through mutual connection of flange discs; a part located on a slide path of the lantern ring, of the lower end of the drilling rod, is of a square structure;and the inner side of the lantern ring and the lower end of the drilling rod are the same in shape. According to the cyclic drilling machine with the function of hydraulic hole expansion and the construction method for the hole-expanded pile, a stable and reliable hole expansion effect and high efficiency are achieved; cyclic hole cleaning for mud can be carried out during hole expansion, and sediments in an expanded cavity are avoided; and the cyclic drilling machine with the function of hydraulic hole expansion is high in hole expansion quality and suitable for being popularized and used.

Description

technical field [0001] The invention relates to the construction field of reaming piles, in particular to a hydraulic reaming circulating drilling machine and a construction method for reaming piles. Background technique [0002] With the development of my country's modernization construction, there are more and more high-rise and super high-rise buildings in engineering construction, and the requirements for the bearing capacity and construction technology of pile foundations are also getting higher and higher. The implementation of reaming construction on pile foundation can greatly improve the bearing capacity of single pile and save engineering cost. Therefore, various pile foundation reaming technologies and corresponding equipment have appeared in the field of pile foundation construction. The existing pile foundation reaming technology can be divided into tamping reaming, explosive reaming, manual digging bottom reaming and reaming drill bit reaming etc. according to ...

Claims

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Application Information

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IPC IPC(8): E21B7/28E02D5/34
CPCE02D5/34E21B7/28
Inventor 陈波孔劲奇秦伟
Owner 江苏省中成建设工程总公司