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A device for conveniently drilling holes in broken rock mass and its drilling method

A rock mass and convenient technology, applied in drilling equipment and methods, earthwork drilling, drilling pipes, etc., can solve the problems of difficulty in achieving high quality standards, low construction efficiency, and inconvenient construction, saving construction materials and increasing construction time. , time-saving effect

Active Publication Date: 2021-02-02
NORTH CHINA ENG INVESTIGATION INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a convenient device for drilling in broken rock mass and its drilling method, which can effectively solve the problem of drill stuck and buried drill caused by hole collapse when drilling in loose and broken rock in the prior art. Accidents, low construction efficiency, complex construction, high cost, inconvenient construction, difficulty in reaching high-quality standards and low efficiency in the existing technology

Method used

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  • A device for conveniently drilling holes in broken rock mass and its drilling method
  • A device for conveniently drilling holes in broken rock mass and its drilling method
  • A device for conveniently drilling holes in broken rock mass and its drilling method

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specific Embodiment approach

[0045] As a specific embodiment provided by the present invention, preferably, the locking mechanism includes 2 sets, and each set includes 2 fixing rods 3, and 2 screw rods 8 and nuts 9 connect the 2 screw rods 8 and 9 through the screw holes on the fixing rod 3. The small semicircular chuck 2 is locked.

[0046] As a specific embodiment provided by the present invention, preferably, the two fixing rods 3 are respectively welded to the two small semicircular chucks 2 .

[0047] As a specific embodiment provided by the present invention, preferably, the rotation limiting protrusion 5 and the axial limiting protrusion 6 form a set of limiting structures, and more than two sets of upper limiting structures are arranged on the drill pipe 1 .

[0048] As a specific implementation mode provided by the present invention, it will be described in detail below.

[0049] The invention is suitable for follow-up of wall casing when drilling in broken rock body, prevents surrounding rock ...

Embodiment 1

[0059] Embodiment 1: as a kind of specific embodiment provided by the present invention, a kind of method for the device drilling that facilitates drilling in broken rock mass as described above is characterized in that, comprises the following steps:

[0060] Step 001: The drilling rig is in place, and the drill pipe assembly with follow-up wall casing is installed;

[0061] Step 002: While opening a hole in the broken rock mass, the wall casing is pushed up by the shoulder at the hole, and the wall is drilled;

[0062] Step 003: When the wall casing follows up to the hole, lift the drill pipe and drill bit out of the hole, and connect the wall casing and drill pipe length;

[0063] Step 004: Continue to drill holes, and the retaining casing continues to follow the retaining wall until it penetrates the broken rock mass and drills to a complete rock mass;

[0064] Step 005: Lift the drill pipe, remove the drill pipe assembly and eccentric drill bit with follow-up wall casing...

Embodiment 2

[0065] Embodiment 2: A method of drilling in a broken rock body. The difference from Embodiment 1 is that the hole is drilled at a complete slope.

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Abstract

The invention provides a device for conveniently drilling holes in a broken rock mass and a drilling method thereof, and relates to the technical field of drilling broken rock masses. It includes a drilling rig and a drill pipe assembly with a wall casing follower, the wall casing follower is fixed on the drill pipe through a locking mechanism, the wall casing follower is provided with a shoulder, and the wall casing is set on the On the shoulder, there are multiple transparent slag discharge holes axially around the interior of the wall casing follower. The protective wall casing follower includes 2 small semicircular chucks and a multi-lobed protective wall casing limit block, and the multi-lobal protective wall casing limit blocks are respectively fixed on the two small semicircular chucks; the present invention can effectively It solves the problem of drill stuck and buried drill accidents caused by hole collapse that is easy to occur when drilling in loose and broken rocks in the prior art, and has the characteristics of high construction quality and construction efficiency, safety and convenience. It is suitable for the drilling of loose and fragile rock mass, especially for the drilling and casing follow-up of drilling in rock and soil with only loose and broken surface layers.

Description

technical field [0001] The invention relates to the technical field of drilling, and is particularly suitable for drilling in broken rock bodies, especially for drilling only surface broken rock bodies. Background technique [0002] In recent years, my country's economy has developed rapidly, forming a huge number of artificial high slopes with large angles. The rock mass is continuously broken and weathered under the action of nature and artificial activities, and a thick layer of loose broken bodies is formed to cover the surface of the sliding slope. Drilling operations are required for reinforcement construction of similar slopes, but drilling operations in loose and broken bodies are prone to hole collapse, resulting in drill stuck and buried drill accidents. The construction efficiency is low, which seriously affects the construction quality and construction progress, threatening The safety of construction personnel has brought challenges to the construction process. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/00E21B7/20E21B17/00E21B21/00
CPCE21B7/00E21B7/20E21B17/00E21B21/00
Inventor 宋军涛张论李聪然王庆江杨维国赵志全王英军杨卫国袁胜超韩贵雷李蕴镭
Owner NORTH CHINA ENG INVESTIGATION INST
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