Comprehensive index evaluating method for rock burst

A technology of rock impact and comprehensive index, applied in mining equipment, mining equipment, earthwork drilling, etc., can solve the problems of coal and rock mass vibration damage, throwing into the well, making strong noise, casualties, etc., to improve the safety level Effect

Inactive Publication Date: 2013-10-23
CHINA UNIV OF MINING & TECH
View PDF0 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the gradual increase of mine mining depth and mining range in my country, coal-rock dynamic disasters represented by rock bursts are becoming more and more serious. This dynamic disaster will cause the elastic energy accumulated in coal-rock mass to suddenly, shar...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Comprehensive index evaluating method for rock burst
  • Comprehensive index evaluating method for rock burst
  • Comprehensive index evaluating method for rock burst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Below in conjunction with example the present invention will be further described.

[0020] A comprehensive index evaluation method of rock burst, comprising the following steps:

[0021] (1) Analyze the types of geological impact factors W in the impact factors of rock burst gi , to determine the maximum risk index R of various types of geological influence factors mgi and the actual risk index R gi , to calculate the rock burst risk index of geological factors W t 1 = Σ R gi R mgi ;

[0022] (2) Analyze the types of mining impact factors W in the impact factors of rock burst mj , to determine the maximum risk index R of various mining influencing factors mmj and the actual risk index R mj , to calculate the rock burst risk index of mining-related factors ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a comprehensive index evaluating method for rock burst. The method comprises the following steps of evaluating weights to rock burst by geological and mining factors in a mining area through comprehensive analysis; respectively calculating danger indexes of the weights, and taking the maximum value as the final danger comprehensive index for rock burst; and thus determining the danger class, state and preventing policy for rock burst in the mining area. The comprehensive index evaluating method for rock burst disclosed by the invention is an advanced evaluating and predicting method which is simple and easy to operate and use. The danger level and class for rock burst can be determined by just analyzing the geological and mining factors in the mining area, and then, related monitoring and preventing preparation for rock burst can be made in advance according to the predetermined preventing policy, so that the safety level of mine production is enhanced.

Description

technical field [0001] The invention relates to a comprehensive index evaluation method of rock burst, which belongs to coal mining and coal mine safety technology. Background technique [0002] With the gradual increase of mine mining depth and mining range in my country, coal-rock dynamic disasters represented by rock bursts are becoming more and more serious. This dynamic disaster will cause the elastic energy accumulated in coal-rock mass to suddenly, sharply and Released in the form of coal and rock, causing vibration damage to the coal and rock mass, the power throws the coal and rock to the shaft, making a strong sound, causing damage to supports and equipment, shafts, and casualties. Know in advance when and where it will happen. At present, the research on rock burst mainly focuses on three research aspects, one is the research on the mechanism of rock burst (rockburst); the other is the research on the risk assessment, monitoring and forecasting technology of rock b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E21F17/00
Inventor 窦林名牟宗龙贺虎温颖远易恩兵
Owner CHINA UNIV OF MINING & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap