Anti-sloughing drilling tool for surrounding rocks of tunnel

An anti-collapse hole and surrounding rock technology, applied in tunnels, drills, tunnel linings, etc., to achieve the effect of improving utilization, preventing loss, and improving versatility

Inactive Publication Date: 2015-11-11
TIANDI SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is how to ensure the normal progress of the drilling and prevent the adverse effects of the rear collapse on the drilling tool

Method used

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  • Anti-sloughing drilling tool for surrounding rocks of tunnel
  • Anti-sloughing drilling tool for surrounding rocks of tunnel

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Embodiment Construction

[0019] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "front", "rear" and other words indicating orientation or positional relationship are specified based on the direction of the drilling, the advancing direction of the drilling is "front", and the direction of the drilling is "front". The backward direction is "rear", which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present i...

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Abstract

The invention relates to the field of mine support technology, and discloses an anti-sloughing drilling tool for surrounding rocks of a tunnel. The anti-sloughing drilling tool comprises a first drill, a second drill and a drilling rod. The first drill is mounted, facing to a forward direction relative to a hole, at the front end of the drilling rod, the second drill sleeves, facing to a backward direction relative to the hole, the drilling rod, the second drill and the first drill are arranged at an interval, and the external diameter of the first drill is larger than the external diameter of the second drill. The anti-sloughing drilling tool for surrounding rocks of the tunnel is simple in structure, convenient to operate, normal drilling can be ensured, and unfavorable influence on drilling tools caused by rear collapse can be prevented.

Description

technical field [0001] The invention relates to the field of mine support, in particular to an anti-collapse hole drilling tool for roadway surrounding rock. Background technique [0002] Grouting reinforcement construction is the main means of repairing broken roadways, and it is widely used in the field of geotechnical engineering in my country, especially for coal mine roadways. Grouting reinforcement construction has become the main means of repairing complex and difficult roadways in coal mines. The grouting reinforcement construction is mainly to drill grouting holes in the coal and rock mass firstly, after forming the grouting holes, install the grouting pipes for grouting, and restore the integrity of the surrounding rock. [0003] The roadway surrounding rocks in coal mines are mainly sedimentary rocks, and the strength of sedimentary rocks is low, and the coal rock mass is affected by ground stress, mining, etc., resulting in the development of coal-rock mass crack...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/00E21D11/10
Inventor 李文洲王艳军吴拥政李会双李洪涛吴建星陈金宇何杰褚晓威任硕崔千里方树林郝登云
Owner TIANDI SCI & TECH CO LTD
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