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

Quantitative assessment method and system of coal seam stability

A quantitative evaluation and stability technology, applied in the field of coal mine exploration, can solve the problems of cumbersome calculation, heavy statistical workload, and inaccuracy

Inactive Publication Date: 2019-01-25
中国煤炭地质总局地球物理勘探研究院
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, the quantitative evaluation of coal seam stability was mostly calculated by formula. This method has a large statistical workload, and its calculation is cumbersome, and the calculation is too slow and not accurate enough.

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
  • Quantitative assessment method and system of coal seam stability
  • Quantitative assessment method and system of coal seam stability
  • Quantitative assessment method and system of coal seam stability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] figure 1 It is a flow chart of the quantitative evaluation method for coal seam stability provided by Embodiment 1 of the present invention.

[0062] refer to figure 1 , the method includes the following steps:

[0063] Step S101, obtain the parameter information of the target object, the parameter information includes the total number of coal sight points, the number of coal seam points, the measured thickness of each coal seam point and the average coal seam thickness, wherein the coal seam thickness of the coal seam number is greater than or equal to the minimum recoverable coal seam thickness;

[0064] Step S102, according to the total number of coal sighting points and the number of coal sighting points of the target object, the coal seam recoverability index of the target object is obtained;

[0065] Step S103, obtaining the mean square error value of the target object according to the measured thickness of each coal-seeing point, the total number of coal-seein...

Embodiment 2

[0088] The Qinan Coal Mine of Huaibei Mining Co., Ltd. is located at the southern turning point of the Sunan syncline in the Huaibei mining area. It is a large-scale mine with a design capacity of 1.8 million t / a. The 82 mining area is the first middle coal formation mining area in the south wing of the mine. Now collect and sort out 82 mining areas that have been constructed and revealed 7 2 There are 39 coal seam drilling holes, according to the coal seam stability evaluation index (as shown in Table 1), for 7 2 Coal seam stability evaluation calculation.

[0089] Open the coal seam stability evaluation application, such as image 3 As shown, follow the prompts to enter the measured thickness of each known coal spot in turn, press the space bar once for each coal spot, and press the Tab key or click the mouse to change the line after recording the measured thickness of all coal spots; Then enter the total number of coal sight points and the number of coal sight points in t...

Embodiment 3

[0091] Figure 5 It is a schematic diagram of a quantitative evaluation system for coal seam stability provided by Embodiment 3 of the present invention.

[0092] refer to Figure 5 , the system includes an acquisition unit 10 , a first calculation unit 20 , a second calculation unit 30 , a third calculation unit 40 and an evaluation unit 50 .

[0093] The acquisition unit 10 is used to acquire the parameter information of the target object. The parameter information includes the total number of coal-seeing points, the number of coal-seeing points, the measured thickness of each coal-seeing point and the average coal seam thickness, wherein the thickness of the coal seam with the number of coal-seeing points is greater than or equal to the coal seam The minimum recoverable thickness;

[0094] The first calculation unit 20 is used to obtain the coal seam recoverability index of the target object according to the total number of coal sight points and the number of coal sight p...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a quantitative assessment method and system of coal seam stability. The method comprises the steps that parameter information of a target object is obtained, and the parameter information comprises a coal point sum, a coal point number, measured thickness of each coal point and average coal seam thickness, wherein the coal seam thickness of the coal point number is larger than or equal to coal seam minimum recoverable thickness; according to the coal point sum and the coal point number of the target object, a coal seam recoverability index of the target object is obtained; according to the measured thickness of each coal point, the coal point sum and the average coal seam thickness, a mean square error value of the target object is obtained; according to the averagecoal seam thickness and the mean square error value, a coal seam thickness variable coefficient of the target object is obtained; according to the coal seam recoverability index of the target object and the coal seam thickness variable coefficient of the target object, the coal seam stability of the target object is assessed, operation is simple, the coal seam stability can be assessed faster andmore accurately, and coal mining design is better served.

Description

technical field [0001] The invention relates to the technical field of coal mine exploration, in particular to a method and system for quantitatively evaluating coal seam stability. Background technique [0002] Coal seam stability is an important parameter to determine the type of coal mine exploration, and also a reliability index to determine the exploration density and reserve calculation. With the continuous improvement of the mechanization degree of fully mechanized mining, the selection of fully mechanized mining support, the selection of coal mining technology and coal mining method, and the determination of the mining height of fully mechanized mining face all need to know the change of coal seam thickness in advance. Therefore, finding out the variation trend of coal thickness in coal mining areas and quantitatively evaluating the stability of coal seams will gradually become one of the main references for the design of coal mining areas and working faces. [0003...

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): E21C41/18
Inventor 范磊孟凡彬郎玉泉牛鹏程罗忠琴刘鹏
Owner 中国煤炭地质总局地球物理勘探研究院
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