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

Method for testing vertical three zone heights of stope cover rock based on high level borehole flow

A high-level drilling and high-level technology, applied in earthwork drilling, surveying, mining equipment, etc., can solve the problems of complex operation, high test cost, and limited use, and achieve the effect of simple operation, reliable results, and complex operation

Inactive Publication Date: 2015-03-11
HENAN POLYTECHNIC UNIV
View PDF6 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] The purpose of the embodiments of the present invention is to provide a method for testing the height of the three vertical zones of the overlying rock in the stope based on the high-level drilling flow rate, aiming at solving the existing problems of calculating the height of the three vertical zones of the overlying rock in the stope. high, problems with limitations

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
  • Method for testing vertical three zone heights of stope cover rock based on high level borehole flow
  • Method for testing vertical three zone heights of stope cover rock based on high level borehole flow
  • Method for testing vertical three zone heights of stope cover rock based on high level borehole flow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0046] The application principle of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0047] Such as figure 1 As shown, the method for testing the height of the three vertical zones of the overlying rock in the stope based on the flow rate of the high-level drilling in the embodiment of the present invention includes the following steps:

[0048] S101: Construct strike oblique high-level drilling in the coal rock entity in the direction of the goaf in the return airway;

[0049] S102: With the advancement of the working face, the drill hole will...

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 method for testing vertical three zone heights of a stope cover rock based on high level borehole flow. High level boreholes of which the trends are obliquely intersected are constructed from entity coal in a working face coal roadway to a side unloading area of a goaf; the heights of a caving zone and a diversion fissure zone of the stope cover rock are judged and tested by using drainage data of the high level boreholes of which the trends are obliquely intersected. The method disclosed by the invention is relatively low in test cost, simple in operation and reliable in result. By fully utilizing existing technical equipment and conditions of coal mines, the vertical three zone heights of the stope cover rock can be simply and quickly determined by using flow change of the high level boreholes.

Description

technical field [0001] The invention belongs to the technical field of calculating the height of three vertical zones of overlying rock in a mine stope, and in particular relates to a method for testing the height of three vertical zones of overlying rock in a stope based on the flow rate of a high-position oblique drilling hole. Background technique [0002] More than 90% of underground mining mines in my country have gas gushing out. Due to the influence of gas gushing out of the goaf, the gas in the upper corner of the working face exceeds the limit. In order to effectively solve the problem of gas gushing out of the goaf, most mines All goaf pressure relief gas drainage technology is adopted. In general, the range of overburden rock fissures is the enrichment area of ​​high-concentration gas in the goaf. The height of the fissure zone is the main technical index for judging whether the coal seam can be mined and determining the mining thickness. At the same time, the colla...

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): E21B49/00E21B47/00E21F7/00
CPCE21B49/00E21B47/00E21F7/00
Inventor 杨明高建良张学博侯三中王晓楠郭飞鹏高志扬
Owner HENAN POLYTECHNIC UNIV
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