Identification method for rockburst disaster micro-seismic monitoring and early-warning key points

A technology of microseismic monitoring and identification method, applied in earthwork drilling, mining equipment, mining equipment, etc., can solve the problems of false early warning conclusion, poor rockburst early warning effect, etc., and achieve the effect of high reliability

Inactive Publication Date: 2014-03-26
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology

[0005] The present invention is aimed at problems such as mine safety, road and railway traffic tunnels, water conservancy and hydroelectric chambers and other projects with poor rockburst early warning effect and easy to produce wrong early warning conclusions. A method to realize early warning of rockburst disasters is not only simple, but also greatly improves the accuracy of microseismic monitoring and early warning of rockburst disasters

Method used

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  • Identification method for rockburst disaster micro-seismic monitoring and early-warning key points
  • Identification method for rockburst disaster micro-seismic monitoring and early-warning key points

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Embodiment Construction

[0024] This specific implementation of the rockburst disaster microseismic monitoring and early warning new method is carried out as follows:

[0025] (1) Determine the rock mass monitoring and early warning area, divide and number the key monitoring and early warning areas, and the number corresponds to the data change of the activity rate of microseismic events and the cumulative apparent volume, so as to obtain a clear monitoring network;

[0026] (2) Install the microseismic monitoring system: reasonably arrange the sensors in the area to be monitored according to the design, connect the sensors, data acquisition instruments, and the underground data exchange center with cables, and connect the data exchange center with the surface monitoring station through optical cables to complete the monitoring system. Install.

[0027] (3) Data processing software and image display analysis software run on the computer of the surface monitoring station, set relevant parameters, monit...

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Abstract

The invention belongs to the field of mine safety, and relates to an identification method for rockburst disaster micro-seismic monitoring and early-warning key points by the adoption of a micro-seismic monitoring system. The method is characterized in that a rock mass is excavated to determine monitoring areas, moreover, the monitoring areas are numbered, the micro-seismic monitoring system is installed and performs real-time monitoring, a micro-seismic event active ratio-accumulative apparent volume-time curve graph is then drawn, the changing conditions, along with the time, of the micro-seismic event active ratio and the accumulative apparent volume are mastered to identify the rockburst disaster micro-seismic monitoring and early-warning key points. The method is easy to construct, good in effect and high in reliability and early-warning accuracy, shortens the early-warning time for rock mass destroying and stability losing, improves the construction safety environment and avoids personnel and equipment losses. The identification method is suitable for mines, tunnels, slopes, hydropower station chambers and other fields needing rock mass excavation.

Description

technical field [0001] The invention belongs to the field of mine safety, and relates to a method for identifying key points of microseismic monitoring and early warning of rockburst disasters by using a microseismic monitoring system through microseismic event activity rate and cumulative apparent volume monitoring, and is suitable for early warning of rockburst disasters in deep hard rock mining. Background technique [0002] With the depletion of mineral resources in the shallow part of the surface, the depth of mining is increasing. With the increase of mining depth and large underground goaf, the possibility, frequency and intensity of rockburst disasters induced by deep well mining will increase simultaneously. Microseismic monitoring and early warning of rockburst disaster is a kind of rock mass in the process of excavation, with the advancement of the mining face, to grasp the activity rate of rock mass rupture and instability microseismic events and the cumulative a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18
Inventor 王春来卢辉王福利邵永珍
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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