Method and device for determining supporting strength of large-dip-angle fully-mechanized coal mining face

A technology of fully mechanized mining face and support strength, applied in special data processing applications, instruments, electrical digital data processing, etc. problems, to achieve the effect of reducing workload, reducing human intervention, and determining the method is simple and easy to operate.

Active Publication Date: 2019-12-03
TIANDI SCI & TECH CO LTD +1
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Problems solved by technology

[0005] In view of this, this application provides a method and device for determining the support strength of a fully mechanized mining face with a large dip angle. It is easy to cause the problem that the support of the working face is crushed

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  • Method and device for determining supporting strength of large-dip-angle fully-mechanized coal mining face
  • Method and device for determining supporting strength of large-dip-angle fully-mechanized coal mining face
  • Method and device for determining supporting strength of large-dip-angle fully-mechanized coal mining face

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[0028] Hereinafter, the present application will be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0029] In view of the problem that the support strength of the fully mechanized mining face with a large inclination angle cannot be accurately determined when mining a coal seam with a large inclination angle, which may easily cause a collapse accident of the support of the working face, this embodiment provides a support strength of the fully mechanized mining face with a large inclination angle method of determination, such as figure 1 As shown, the method includes:

[0030] 101. Obtain the coal seam occurrence conditions and mining technical condition parameters of the target high-inclination working face.

[0031] Among them, the coal seam occurrence conditions and mining tec...

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Abstract

The invention discloses a method and device for determining the supporting strength of a large-dip-angle fully mechanized coal mining face, relates to the technical field of coal mining, and can solvethe problems that when a large-dip-angle coal seam is mined, the supporting strength of the large-dip-angle fully mechanized coal mining face cannot be accurately determined, and a working face support crush accident is easily caused. The method comprises: obtaining coal seam occurrence conditions and mining technical condition parameters of a target large-dip-angle working face; dividing the direct roof of the target large-inclination-angle working face into multiple sections of areas in the inclination direction according to the motion state of the roof, wherein the multiple sections of areas comprise a slippage section and an instability section; creating mechanical models of the sliding section and the instability section; and calculating the supporting strength of the target large-dip-angle working face based on the mechanical model and the coal seam occurrence condition and mining technical condition parameters. The method is suitable for determining the supporting strength of the large-dip-angle fully mechanized coal mining face.

Description

technical field [0001] The present application relates to the technical field of coal mining, in particular to a method and device for determining the support strength of a fully mechanized mining face with a large dip angle. Background technique [0002] The occurrence conditions of mine coal seams in my country are diverse, and the coal seams in most mining areas are greatly affected by geological structures. It will make it more difficult to mine large-inclination coal seams. When the working face is recovered, the force on the vertical rock layer is reduced, and the roof of the coal seam with a gentle slope is more difficult to fall. If the roof overhang reaches a certain area, it may suddenly collapse in a large area, crush the support of the working face and cause injury to personnel. In addition, it is often necessary to arrange 100-200 fully-mechanized mining supports ranging from 100 to 200 fully-mechanized mining supports in large-inclination working faces. A sing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 范志忠杨晓成徐刚付书俊潘黎明赵岩峰郑建平杨勇赵杰
Owner TIANDI SCI & TECH CO LTD
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