Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Underground coal mine pressure bump zoning grading predication method

A technology of rock burst and prediction method, which is applied to mining equipment, testing machinery, mining equipment, etc., can solve the problems of large mining area, difficulty in determining the location of rock burst, and different degrees of danger of rock burst. Achieve the effects of improving scientificity and accuracy, being targeted, and improving the level of monitoring and prevention

Active Publication Date: 2013-08-21
CHINA UNIV OF MINING & TECH
View PDF5 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for predicting rock burst in coal mines by division and classification, which can solve the problem that the mining area of ​​coal mine is large, the risk of rock burst in different sections is different, and the location where rock burst occurs is difficult to determine.

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
  • Underground coal mine pressure bump zoning grading predication method
  • Underground coal mine pressure bump zoning grading predication method
  • Underground coal mine pressure bump zoning grading predication method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: The prediction method combines the superimposed effects of faults, coal seam dip angle changes, coal seam erosion, combined bedding or thickness change areas, roof and floor lithology changes, coal pillars left over from the mining of the upper protective layer, and advanced bearing pressure factors on the working face. Analyzing the mining area with rockburst risk by the comprehensive index method, the risk degree of rockburst in different sections is determined as four levels, which are slightly dangerous area, general dangerous area, medium dangerous area and serious dangerous area. The superimposed effect of the regional impact factors of rockburst can determine the different risk levels of rockburst in different mining areas, and carry out zoning and grading predictions for mining areas. According to the zoning and grading prediction results, the implementation of anti-scouring measures can be guided;

[0018] For a given mining area that is assessed to h...

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 an underground coal mine pressure bump zoning grading predication method, and belongs to a coal mine pressure bump predication method. The predication method integrates cumulated influences of a fault, change of a coal bed dip angle, coal bed erosion, layer combination or thickness change zones, lithological change of a top board and a bottom board, a coal column left by upper protective layer exploration and advancing supporting pressure factors of a working surface, aims at a mining area which is analyzed through a comprehensive index method and has pressure bump danger, and classifies pressure bump dangerous degrees of different sections into four grades of a slight danger area, a general danger area, an intermediate danger area and a severe danger area. Through the fact that cumulated influences of multiple pressure bump regional influencing factors are analyzed, different pressure bump danger degrees of different exploration sections are confirmed, zoning grading predication is carried out on an exploration area, and implementation of anti-bump measures can be guided according to zoning grading predication results.

Description

technical field [0001] The invention relates to a coal mine rock pressure and prediction method, in particular to a coal mine underground impact rock pressure prediction method by division and classification. 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, mon...

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
CPCE21C39/00
Inventor 牟宗龙窦林名巩思园王浩刘振江
Owner CHINA UNIV OF MINING & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com