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A rock mass embedded truss support structure and its installation method for roof surrounding rock reinforcement

A support structure and slab surrounding rock technology, which is applied in the installation of bolts, earthwork drilling, mining equipment, etc., can solve the problems of unable to actively support and reinforce the surrounding rock, affecting underground production and transportation, and occupying external mining space, etc. To achieve the effect of solving the integrity problem, improving the support effect and saving the support cost

Active Publication Date: 2021-09-03
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Overcome the disadvantages that the existing mine underground support structure cannot carry out overall active support and reinforcement for the surrounding rock, the scope of application is limited, a large amount of external mining space is occupied, and normal underground production and transportation are affected.

Method used

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  • A rock mass embedded truss support structure and its installation method for roof surrounding rock reinforcement
  • A rock mass embedded truss support structure and its installation method for roof surrounding rock reinforcement
  • A rock mass embedded truss support structure and its installation method for roof surrounding rock reinforcement

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Embodiment 1

[0038] see Figure 1-6, this embodiment provides a rock mass embedded truss support structure for roof surrounding rock reinforcement, which is characterized in that it includes a four-hole tray 1, two threaded steel anchor rods one 2, two threaded steel anchor rods two 3 ,, the threaded steel anchor rod-2 is equipped with a shell-type anchor head 4 at one end thereof, and a threaded hole 5 with a suitable diameter is provided at one end close to the shell-type anchor head 4, and the axis of the threaded hole 5 is in line with the threaded steel The axes of anchor rod one 2 are perpendicular, and the other end of threaded steel anchor rod one 2 is installed on the four-hole tray 1 through nut 6, and the threaded steel anchor rod two 3 is provided with a certain length of external thread column 9 at one end thereof, and The diameter of threaded column 9 is identical with the diameter of threaded hole 5, is provided with scale scale 7 along the anchor rod, and is installed on th...

Embodiment 2

[0045] This embodiment provides an installation method for the rock mass embedded truss support structure for roof surrounding rock reinforcement in Embodiment 1, which is characterized in that it includes the following steps:

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Abstract

The invention provides a rock mass embedded truss supporting structure and an installation method thereof for reinforcing the surrounding rock of the roof. The structure includes a four-hole tray, a first threaded steel anchor rod, a second threaded steel anchor rod, a shell-expanding anchor head, a threaded hole, a nut, a scale, an external threaded column, a pointing mark, and a direction locator. Its main structure is located inside the rock mass, and a truss-type overall support structure is formed through the connection of various components inside the rock mass. Its core component is a four-hole tray designed by independent innovation on the outside of the rock mass, connecting the threaded steel anchor rods in four directions through nuts to form a partial overall structure, and then extending to the surroundings through the same structure , the connection between the adjacent four-hole pallets is formed by intersecting two threaded steel anchor rods located inside the rock mass. The support structure of the present invention has high stability, good support effect, occupies less external excavation space, and has very little impact on excavation, transportation operations and other activities in the underground mining area.

Description

technical field [0001] The invention belongs to the technical field of mining area support in mines, and relates to a rock mass embedded truss support structure and an installation method thereof for reinforcement of roof surrounding rock. Background technique [0002] In the process of mining, support work is indispensable, and many dynamic disasters such as roof collapse and rockburst often occur underground, which are related to inadequate support work. During the mining process, once a certain support part of the traditional support system is damaged, it will directly affect the existing stress balance state of other parts of the rock mass under the support system, which will lead to the failure of the entire support system and the lack of support structure. Wholeness. Once such an accident occurs underground, it will affect the mining operation at least, and it will cause huge casualties and property losses. Therefore, it is particularly important to support the rock m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D21/00E21D20/00
CPCE21D20/00E21D21/0026E21D21/008E21D21/0093
Inventor 马举陈立强赵国彦简筝毛文杰
Owner CENT SOUTH UNIV