Rock burst predicting and warning method

A technology of monitoring and early warning of rock burst, applied in the direction of earth drilling, mining equipment, mining equipment, etc., can solve the problems of no prediction and early warning method and low accuracy rate, and achieve the goal of eliminating conditions, improving accuracy rate and reducing losses Effect

Inactive Publication Date: 2012-08-22
HENAN DAYOU ENERGY
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Problems solved by technology

At present, only the KBD-5 electromagnetic radiation instrument is used to predict the risk of rock burst, and no comprehensive prediction and early warning method has been formed. The anti-interference and critical indicators of the electromagnetic radiation instrument still need further research, so the accuracy rate is biased. Low

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Embodiment Construction

[0026] The specific implementation of the present invention will be described in detail below in combination with specific situations.

[0027] Depend on Figure 1-8 Given, the present invention is realized by the following methods when concretely implemented:

[0028] The present invention adopts a three-level system for prediction and early warning of rock burst, and the three-level system includes the first-level mining area monitoring, the second-level mining area monitoring, and the third-level working face monitoring;

[0029] The first-level mining area monitoring uses a mine vibration detector or a mine-used coal and rock mass vibration signal monitor to monitor the mine earthquake, locate the magnitude, and conduct research and analysis on the occurrence and movement of the mine earthquake in the entire mining area;

[0030] The second-level mining area monitoring is to use the Polish microseismic system (ARAMIS) to monitor the microseismic in the mining area and the...

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Abstract

The invention relates to a rock burst predicting and warning method, which effectively and accurately predicts and warns the rock burst and ensures safety in coal production. The rock burst predicting and warning method comprises the following steps of: performing shock bump monitor on a whole coal field, determining the magnitude, and analyzing generation and motion law of the shock bump in the whole coal field; mounting a Poland micro-quake system on upward and downward roads and a main haulageway in the mining area to perform on-line continuous monitor; mounting a micro-quake system probe on a working surface, mounting a micro-quake monitor probe in an important anti-scour area of the working surface to perform overall arrangement, drilling a coal wall or a top plate, placing the probe in the hole bottom and the hole wall, perform electromagnetic radiation monitor on a tailentry and the main haulageway by using an electromagnetic radiometer to, arranging a monitor probe in the important anti-scour area to perform overall arrangement, monitoring the coal pressure, and inputting the monitored parameters into a computer to perform comprehensive analysis, so as to accurately predict the rock burst. Various items of monitor are integrated together, the predicting and warning accuracy is increased, and the rock burst predicting and warning method provides the technical support for eliminating the rock burst condition and reducing the loss due to rock burst.

Description

technical field [0001] The invention relates to a method for predicting and early warning of rock burst in the mining industry in a dangerous area of ​​strong rock burst. Background technique [0002] When coal mining reaches a certain depth, most mines are threatened by rock bursts to varying degrees due to the joint action of ground stress, mining stress and structural stress. [0003] Most of the mines have been mined in deep depths. Coupled with the impact tendency of the coal seam itself, mining technical conditions and geological factors, the appearance of rock burst is becoming more and more serious. With the increase of mining depth, the appearance of rock burst becomes more and more frequent. The impact intensity and degree of damage are getting bigger and bigger, especially when the mining depth reaches 500m below the surface, it occurs frequently and strongly, which seriously threatens safe production. [0004] Prediction and early warning is an important part of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18
Inventor 韩荣军刘军姜红兵王世超吴凯王亚旭范波吕玉磊李刚锋
Owner HENAN DAYOU ENERGY
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