Coal and rock mass deep hole segmented grouting reinforcement device and reinforcement method

A technology of segmented grouting and reinforcement device, which is used in vertical shaft equipment, earth-moving drilling, wellbore lining, etc., can solve the problems of serious slurry running, uneven slurry diffusion, and few types of grouting materials, so as to avoid grouting problems, improve the quality of grouting, and expand the effect of the effective diffusion radius

Active Publication Date: 2022-07-29
PINGDINGSHAN TIANAN COAL MINING +1
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Problems solved by technology

[0005] In view of this, the present invention provides a deep-hole segmental grouting reinforcement device and a reinforcement method for coal and rock mass, which can effectively solve the problems of serious grout running and grout diffusion in existing polymer reinforcement materials for shallow-hole grouting reinforcement of coal and rock mass. Problems such as unevenness and few types of grouting materials

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  • Coal and rock mass deep hole segmented grouting reinforcement device and reinforcement method
  • Coal and rock mass deep hole segmented grouting reinforcement device and reinforcement method
  • Coal and rock mass deep hole segmented grouting reinforcement device and reinforcement method

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[0035] figure 1 Schematic diagram of the grouting reinforcement device installed in the grouting hole; figure 2 Schematic diagram of the completed structure for the first stage grouting; image 3 Schematic diagram of the completed structure for the second stage grouting; Figure 4 Schematic diagram of the structure of the grouting reinforcement device; Figure 5 It is a schematic diagram of the structure of the mixing device;

[0036] As shown in the figure: the deep hole grouting reinforcement device for coal and rock mass in this embodiment includes a grouting device 1 and at least two sets of grouting pipeline assemblies. A grouting outlet that matches and is connected to the inlet end of the grouting pipe assembly for conveying different materials, the outlet end of each grouting pipe assembly is connected to the grouting head, and the grouting pipe assembly can be rotated on its own axis to realize and grouting Disassembly of the head. Grouting materials are multi-c...

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Abstract

The invention discloses a deep hole segmented grouting reinforcement device for coal and rock mass and a reinforcement method, comprising a grouting device and at least two groups of grouting pipeline assemblies, wherein the grouting device has a one-to-one matching with each grouting pipe assembly A grouting outlet connected with the inlet end of the grouting pipe assembly for conveying different materials, the outlet end of each grouting pipe assembly is connected with the grouting head, and the grouting pipe assembly can rotate with its own axis to realize the connection with the grouting head. In the present invention, the grouting pipeline assembly can be separated from the grouting head, which facilitates the disassembly of the grouting pipeline and the secondary installation of the grouting head to realize the grouting in the next stage. The grouting range of the structure is optional, which can effectively solve the problem of existing Some shallow hole grouting methods for strengthening coal and rock mass of polymer reinforcement materials have problems such as small effective grouting range, serious grouting phenomenon, and complex grouting construction organization. Difficulty, drilling is difficult to use multiple times and other problems.

Description

technical field [0001] The invention relates to the technical field of roadway support, in particular to a deep hole segmented grouting reinforcement device and reinforcement method for coal and rock mass. Background technique [0002] In coal mining, mining will have a great impact on the coal-rock mass around the coal seam, causing the original coal-rock mass and surrounding rock stress to be redistributed, and it is always in the process of change. In recent years, the mining height of the coal seam has been continuously increased, which will lead to a series of corresponding mine pressure phenomena in the mining roadway and coal wall, such as the increase of roadway deformation, the increase of the coal wall, the large amount of roof subsidence, and the roof erosion. It will seriously affect the safe mining of the mine at the same time. [0003] Practice has shown that in the face of complex and diverse geological conditions, it is difficult to ensure the stability of t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10
CPCE21D11/10
Inventor 姚威许向彬陈星明张青松张生亮李时宜孙海龙屈凡瑞张耀华马琳陈巍刘标懿谢潇
Owner PINGDINGSHAN TIANAN COAL MINING
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