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Method for detecting dynamic activity rule of overburden of western shallow coal seam during mining

A dynamic and overlying technology is applied in the field of detecting the dynamic activity law of the overlying rock in coal seam mining, and detecting the dynamic activity law of the overlying rock in the mining of shallow buried coal seams in the west, so as to improve the image extraction accuracy and overcome the low registration accuracy.

Active Publication Date: 2016-09-07
CHINA UNIV OF MINING & TECH
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Problems solved by technology

At present, there is no report on the integration of the two methods of "D-InSAR measurement (air)" and "radon surface detection (ground)" to detect the dynamic activity of the overlying rock in shallow coal seam mining in the west

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  • Method for detecting dynamic activity rule of overburden of western shallow coal seam during mining

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Embodiment Construction

[0024] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] A method for detecting the dynamic activity law of the overlying strata in shallow coal seam mining in the present invention comprises the following steps:

[0026] Step 1. Select a typical working face site in the western mining area, and master the specific mining parameters of the working face.

[0027] Step 2, using the D-InSAR image high-precision registration algorithm under low coherence conditions to process the surface deformation radar satellite SAR image data of the whole process of mining in the working face, and obtain the dynamic deformation of the mining surface in the working face;

[0028] Specifically, in this step:

[0029] First, obtain the multi-view TerraSAR-X radar satellite SAR image data covering the whole process of "pre-mining-mining-post-mining" of the working face;

[0030] Secondly, all the SAR image data...

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Abstract

The invention discloses a method for detecting a dynamic activity rule of the overburden of a western shallow coal seam during mining, and the method comprises the steps: selecting a typical working face side of a western mine, and mastering the specific mining parameters of a working face; processing the earth surface radar satellite SAR image data of the whole mining process of the working face through employing a D-InSAR image high-precision registering algorithm under a low coherence condition, and obtaining the earth surface deformation condition of the working space in the mining process; detecting the dynamic developmental situation of mining-induced fractures in the underground working face overburden with radon; analyzing the dynamic coupling relation among the specific mining parameters of the working face, the mining earth surface deformation and the mining fracture development, wherein the dynamic coupling relation represents the dynamic activity rule of the overburden of the western shallow coal seam during mining. The method introduces a satellite remote sensing method and a radioactivity measurement method to the field of underground coal mining, and can reveal the dynamic activity characteristics of the overburden of the western shallow coal seam accurately, quickly and effectively during mining.

Description

technical field [0001] The invention belongs to the technical field of underground mining of coal resources, and relates to a method for detecting the dynamic activity law of the overlying rock in coal seam mining, in particular to a method for detecting the dynamic activity law of the overlying rock in shallow coal seam mining in western China. Background technique [0002] With the depletion of coal resources in the eastern mining areas and the intensification of the conflict between resources and environmental constraints in the central mining areas, the focus of my country's coal resource development has rapidly shifted to the western ecologically fragile areas, and five major coal bases in Northwest China (Northern Shaanxi, Huanglong, Huanglong, etc.) have initially formed. , Shendong, Ningdong, Xinjiang). The typical endowment characteristics of coal seams in western mining areas are shallow burial, large thickness, thin bedrock, and fragile surface ecological environme...

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Application Information

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IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 张炜张东升吴立新马立强胡文敏闫世勇
Owner CHINA UNIV OF MINING & TECH
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