Multi-model mine roof safety early warning model based on decision fusion

A technology of decision fusion and safety early warning, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of roadway support methods and selection of surrounding rock stress parameters, provide a scientific and reliable basis, and can not evaluate roof safety. Status, false alarms, etc.

CN104794327AInactive Publication Date: 2015-07-22XIAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2015-07-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a multi-model mine roof safety early warning model based on decision fusion. Real-time pressure monitoring data are collected through sensors, and an average value is selected as a training support pressure monitoring datum X1 to be used for establishing a support pressure submodel; stress distribution information of a coal bed or a rock stratum is collected through a leading pressure sensor to obtain a training leading pressure detection datum X2, and a leading pressure submodel is established; a separation layer indicator collects the separation layer situation of rock in a roof rock pillar near a working face and conducts processing to obtain a training roof separation layer monitoring datum X3, and a roof separation layer submodel is established; the data in the submodels are reconstructed to form corresponding prediction values, namely, Y1, Y2 and Y3, normalized decision fusion is conducted on the prediction values in a statistical recognition mode, and fused information is obtained. The multi-model mine roof safety early warning model is high in prediction and generalization capacity.
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Description

technical field

[0001] The invention belongs to the technical field of engineering safety, in particular to a multi-model mine roof safety early warning model based on decision fusion. Background technique

[0002] With the shift of mine mining to the deep, affected by the advanced pressure of the working face, the stress of the surrounding rock of the roadway increases, the appearance of mine pressure intensifies, the scope of loosening expands, and the deformation of the roadway increases, especially in the areas containing gangue layers and along the gob near faults. The roadway brings great difficulties to the control of the surrounding rock of the roadway, and has a serious impact on the normal advancement of the working face. In view of the fact that the continuous large deformation of the ultra-thick coal seam roadway is difficult to control due to mining, it is necessary to conduct in-depth research on the dynamic pressure large deformation law of the coal seam roadw...

Examples

Embodiment Construction

[0047] The multi-model mine roof safety early warning model based on decision fusion includes the following: real-time pressure monitoring data is collected by sensors installed at the front column, rear column, and front probe beam of the hydraulic support, and the real-time pressure monitoring data are averaged everywhere , and take the average value as the training support pressure monitoring data X1 to establish the support pressure sub-model; the coal seam or rock formation stress distribution information is collected by the advanced pressure sensor installed in the horizontal borehole in the coal seam or rock formation, and received by the secondary instrument Information and processing, get the training advanced pressure detection data X 2 , used to establish the advanced pressure sub-model; the abscission status of the rock in the roof rock column adjacent to the stope is collected by the abscission instrument installed in the roof strata above the mining face, and the ...