A shrinkable mesh hole protector, an installation method of the hole protector, and a hole protector method

An installation method and a technology for hole protection, which are applied to drilling equipment and methods, earthwork drilling, blasting, etc., can solve problems such as hole collapse and difficulty in charging explosives, and achieve low cost, simple hole protection methods, and convenient operation. Effect

Active Publication Date: 2022-03-11
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, after the drilling is completed, the hollow tube does not remain in the drilled hole. If it is used in a broken rock mass, the hollow tube may collapse after being pulled out, which will bring a series of difficulties to the subsequent charging work.

Method used

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  • A shrinkable mesh hole protector, an installation method of the hole protector, and a hole protector method
  • A shrinkable mesh hole protector, an installation method of the hole protector, and a hole protector method
  • A shrinkable mesh hole protector, an installation method of the hole protector, and a hole protector method

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Embodiment Construction

[0039] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0040] like figure 1 As shown, this embodiment provides a shrinkable net-like hole protector, which includes a main body pipe network and a cone, and the main body pipe network is a ring-shaped shrinkable mesh structure; the cone's The plane is connected to the main pipe network, and the diameter of the plane of the cone is larger than the outer diameter of the main pipe network, and a stepped surface is formed on the outside of th...

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Abstract

The invention discloses a shrinkable mesh-shaped hole protector, an installation method of the hole protector and a hole protector method, which relate to the field of mining technology and effectively solve the difficulty in charging and the complicated operation caused by the collapse of the hole after the drilling is completed. The problem. The hole protector includes a main pipe network and a cone, and the main pipe network is a ring-shaped retractable network structure. The main pipe network is shrinkable, and the hole protector is placed in the borehole. The hole protector can support the wall of the borehole and prevent the borehole from collapsing. The blasting effect of tunneling in the approach stope is guaranteed; the structure of the hole protection parts is simple and the cost is low; the installation method of the hole protection parts can quickly place the hole protection parts in the borehole, which ensures the installation efficiency, simple operation, and the structure of the installation parts The method is simple, low in cost, and the installation cost of the hole protector is low; the hole protector method requires construction of a borehole and installation of a hole protector to ensure that the borehole will not collapse. The method is simple, easy to operate, high in efficiency, and low in cost.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a hole protecting device and a hole protecting method using a shrinkable mesh material. Background technique [0002] In the process of mining, tunneling is an important part of production, and the speed of tunneling has a direct impact on mine production efficiency. When mining ore rocks and broken ore bodies, after the drilling of the approach stope is completed, the problem of hole collapse is often encountered, resulting in difficulty in charging the blasting process and poor blasting effect. The existing solutions are as follows: [0003] The notification number is: CN102966333B's invention patent proposes a method for preventing blockage of the bottom hole of the mine stope and roadway excavation working face, which adopts the method of inserting the bottom hole tube, and inserts one end of the pipe made of PVC material or other pipe materials into the bottom hole. The othe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/20F42D1/00
CPCE21B7/20F42D1/00
Inventor 曹帅李佳建黄智强陈才贤王爱爱张欢赵紫月宋卫东杨福斗温世平
Owner UNIV OF SCI & TECH BEIJING
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