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Grouting anti-bottom arch support device and support method

A technology of support device and anti-bottom arch, which is applied to shaft equipment, bolt installation, earth-moving drilling, etc., can solve problems such as poor bottom drum effect, reduce operation cost, improve support operation efficiency, and compressive strength and tensile strength improvement effect

Inactive Publication Date: 2019-03-22
CCTEG CHINA COAL RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problem of poor effect of controlling the bottom heave in the prior art, the present invention provides a grouting anti-bottom arch support device and support method

Method used

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  • Grouting anti-bottom arch support device and support method
  • Grouting anti-bottom arch support device and support method
  • Grouting anti-bottom arch support device and support method

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0043] Figure 1-14 Shown is a preferred embodiment of the grouted anti-bottom arch support device of the present invention.

[0044] The grouting anti-bottom arch support device includes a reverse bottom arch hollow support body 1, a hollow anchor rod 2 and a slurry 3, and a plurality of anchor rod holes are formed on the anti-bottom arch hollow support body 1, and the hollow anchor rod Part of the rod 2 passes through the hollow support body 1 of the anti-bottom arch from the hole of the anchor rod, and the slurry 3 is poured into the hollow support body 1 of the bottom arch and the hollow anchor rod 2 .

[0045] The grouting anti-bottom arch support device in this embodiment also includes a fixing nut 4, which is threadedly connect...

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Abstract

The invention discloses a grouting inverted arch supporting device which comprises an inverted arch hollow supporting body (1), a hollow anchor rod (2) and a slurry body (3), wherein multiple anchor rod holes are formed in the inverted arch hollow supporting body (1); one part of the hollow anchor rod (2) penetrates through the inverted arch hollow supporting body (1) from the interior of the anchor rod holes; the slurry body (3) is poured into the inverted arch hollow supporting body (1) and the hollow anchor rod (2); and when bottom plate supporting is performed, the inverted arch hollow supporting body (1) is attached to a roadway floor (9), the hollow anchor rod (2) penetrates through the inverted arch hollow supporting body (1), and one part of the anchor rod (2) stretches into an anchor rod drill hole (12). An organic structure is formed, the structural strength is high, and bottom heave of the roadway floor can be effectively controlled.

Description

technical field [0001] The invention relates to a roadway floor drum supporting device and method. Background technique [0002] Affected by the mining engineering, the roof and floor of the coal mine roadway and the two sides of the rock mass are deformed and displaced into the roadway, and the upward bulge of the roadway floor is called the floor heave. The section of the roadway caused by the floor drum is reduced, hindering the transportation and pedestrians, hindering the ventilation of the mine, and seriously causing the scrapping of the entire roadway, which greatly restricts the production and safety of the mine. [0003] For a long time, many experts and scholars at home and abroad have done a lot of research work on the mechanism and control technology of the bottom drum of coal mine roadway, and proposed many bottom drum control technologies. [0004] At present, the methods of controlling the floor heave can be roughly divided into three categories: one is the "...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10E21D20/02
Inventor 吴宝杨邓志刚岳军文赵善坤吕目晓李少刚李峰王永仁冯宇峰刘学
Owner CCTEG CHINA COAL RES INST
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