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

Deep high stress hard roof stope dynamic disaster monitoring and early warning method

A dynamic disaster, monitoring and early warning technology, applied in forecasting, mining equipment, mining equipment, etc., can solve the problems of precursor information, different vibration parameters, complex dynamic disaster mechanism in coal mines, inability to realize monitoring and early warning, etc., to ensure safe production, Effectiveness of reliable rockburst monitoring, early warning and prevention techniques

Active Publication Date: 2019-08-23
UNIV OF SCI & TECH BEIJING
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanism of dynamic disasters in coal mines is complex. The same coal mine, the same coal seam, the same working face, and different advancing stages have different mechanisms, precursory information, and vibration parameters of dynamic disasters, and reliable monitoring and early warning cannot be achieved.

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
  • Deep high stress hard roof stope dynamic disaster monitoring and early warning method
  • Deep high stress hard roof stope dynamic disaster monitoring and early warning method
  • Deep high stress hard roof stope dynamic disaster monitoring and early warning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0030] The invention provides a method for monitoring and early warning of dynamic disasters in a deep high-stress hard roof stope.

[0031] Such as figure 1 As shown, the method includes the following steps:

[0032] (1) Obtain basic geological data of the project through on-site investigation, and preliminarily determine the influencing factors of dynamic disasters;

[0033] (2) Formulate an in-situ stress test plan and prepare the instruments and equipment required for in-situ stress testing;

[0034] (3) Carry out the field stress test of the stope, adopt the stress relief method to obtain the ground stress data, and obtain the rock core of the stope test site at the same time;

[0035] (4) carry out laboratory confining pressure filtration test t...

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 provides a deep high stress hard roof stope dynamic disaster monitoring and early warning method, and belongs to the technical field of mine dynamic disaster prevention and control. Thedeep high stress hard roof stope dynamic disaster monitoring and early warning method comprises the steps that firstly geological materials are investigated, surveyed and obtained, and dynamic disaster influence factors are determined preliminarily; then a ground stress field test scheme is formulated, a ground stress field test is carried out nearby a stope, confining pressure filter test is carried out on a rock core of a ground stress test point in a laboratory, and ground stress distribution rule is concluded; meanwhile, a SURPAC geological modeling software is adopted, a three-dimensionalmodel of a coal seam and earth surface is established, the stope static ground stress field distribution characteristics are obtained, a disaster-causing mechanism is researched, and energy storage rock stratum structural characterization study is carried out; and finally, the monitoring scheme and equipment is determined, monitoring equipment is installed on site, and monitoring and early warning on site is carried out. According to the deep high stress hard roof stope dynamic disaster monitoring and early warning method, the monitoring scheme of tracing rock mass fracture tracks and stressfield migration characteristic is adopted, a classified early warning index system is applied. Energy level, time and position of dynamic disaster changing of an operation surface can be accurately predicted, and safe production of the operation surface is guaranteed.

Description

technical field [0001] The invention relates to the technical field of mine dynamic disaster prevention and control, in particular to a method for monitoring and early warning of dynamic disasters in deep high-stress hard roof stope. Background technique [0002] At present, the main instruments and equipment used for coal mine dynamic disaster monitoring and early warning at home and abroad include the following categories: vibration monitoring, electromagnetic monitoring, stress monitoring, displacement monitoring, electric charge monitoring, infrared monitoring and cuttings monitoring. Instruments and equipment are based on corresponding physical principles and monitoring methods, and play an active role in monitoring and early warning of coal mine dynamic disasters. However, the mechanism of dynamic disasters in coal mines is complex. The same coal mine, the same coal seam, the same working face, and different advancing stages have different dynamic disaster mechanisms, ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18G06F17/50G06Q10/04G06Q10/06G06Q50/02
CPCE21F17/18E21F17/185G06Q10/04G06Q10/06393G06Q10/0635G06Q50/02G06F2119/06G06F30/20
Inventor 盖德成姜福兴王存文李东陈洋米金辉孙琰
Owner UNIV OF SCI & TECH BEIJING
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