CN-122022455-A - Method and system for evaluating rock burst danger and impact prevention effect

CN122022455ACN 122022455 ACN122022455 ACN 122022455ACN-122022455-A

Abstract

The application relates to the technical field of mineral exploitation, and provides a rock burst risk and impact prevention effect evaluation method and system. The method comprises the steps of determining a pre-mining macroscopic evaluation result of rock burst risk of an object to be evaluated by taking a value of a main control factor of the object to be evaluated, determining an initial image of a multi-factor coupling superposition influence area based on the object to be evaluated according to the pre-mining macroscopic evaluation result, dividing the pre-mining rock burst risk area image of the object to be evaluated, then implementing comprehensive anti-impact measures on the object to be evaluated according to the pre-mining rock burst risk area image and the rock burst type of the object to be evaluated, performing cyclic anti-impact effect evaluation until the anti-impact effect evaluation is effective, then optimizing the value of the main control factor corresponding to the comprehensive anti-impact measures to determine the in-mining macroscopic evaluation result of the rock burst risk of the object to be evaluated, and determining a multi-factor coupling superposition influence area correction image of the object to be evaluated, and dividing the in-mining rock burst risk area image of the object to be evaluated.

Inventors

WEI QUANDE
WANG HAO
LIU WEI
WANG BO
LI ZHANCHENG
WU ZHEN
YIN HAICHEN
Hao qilin
WANG JUNHUI
ZHANG XIUFENG
CHANG YAN
WANG CHAO
ZHU QUANJIE
WANG CUNWEN
LI GUOYING
SHI XIANFENG
CHEN YANG

Assignees

华北科技学院(中国煤矿安全技术培训中心)
山东能源集团有限公司
河南大有能源股份有限公司

Dates

Publication Date: 20260512
Application Date: 20251231

Claims (8)

1. The method for evaluating the rock burst risk and the impact prevention effect is characterized by comprising the following steps of: The main control factor of the object to be evaluated takes a value to determine the pre-mining macroscopic evaluation result of the rock burst risk of the object to be evaluated And according to the pre-harvest macroscopic evaluation result Determining an initial image of a multi-factor coupling superposition influence area based on an object to be evaluated so as to divide a pre-mining rock burst dangerous area image of the object to be evaluated; According to the pre-mining rock burst dangerous area diagram of the object to be evaluated and the rock burst type of the object to be evaluated, implementing comprehensive impact prevention measures on the object to be evaluated and performing cyclic impact prevention effect evaluation until the impact prevention effect evaluation is effective; Optimizing the value of the main control factor corresponding to the comprehensive anti-impact measure to determine the in-process macroscopic evaluation result of the rock burst risk of the object to be evaluated And determining a multi-factor coupling superposition influence area correction map of the object to be evaluated so as to divide a mining rock burst dangerous area map of the object to be evaluated.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises, Dividing all main control factors of an object to be evaluated into a fixed factor set and a correction factor set, respectively taking initial values of the main control factors, and respectively calculating evaluation indexes of the fixed factor set and the correction factor set To determine the pre-harvest macroscopic evaluation result of rock burst risk of the object to be evaluated 。
3. The method of claim 2, wherein the step of determining the position of the substrate comprises, And carrying out attribute conversion and discrimination on convertible factors in rock burst risk influence factors according to geological parameter conditions of the object to be evaluated so as to divide all main control factors of the rock burst risk of the object to be evaluated into a fixed factor set and a correction factor set.
4. The method of claim 1, wherein the step of determining the position of the substrate comprises, Based on the pre-sampling macroscopic evaluation result of rock burst risk of the object to be evaluated Determining a pre-evaluation grade of rock burst risk of an object to be evaluated; And otherwise, overlaying the influence areas of the main control factors of the rock burst risk of the object to be evaluated by a multi-factor coupling overlaying method to obtain an initial diagram of the multi-factor coupling overlaying influence areas of the object to be evaluated.
5. The method of claim 1, wherein the step of determining the position of the substrate comprises, And if the impact protection effect evaluation is invalid, re-formulating comprehensive impact protection measures, implementing and performing impact protection effect evaluation until the impact protection effect evaluation of the comprehensive impact protection measures implemented by the object to be evaluated is valid.
6. The method of claim 1, wherein the step of determining the position of the substrate comprises, In response to the effective impact protection effect evaluation, optimizing the value of the main control factor in the correction factor set corresponding to the comprehensive impact protection measure, and calculating the in-process macroscopic evaluation result of the rock burst risk of the object to be evaluated 。
7. The method of claim 1, wherein the impact areas of the main control factors corresponding to the comprehensive impact measures are overlapped to obtain a multi-factor coupling overlapping impact area correction map of the object to be evaluated so as to divide the mining rock burst risk area map of the object to be evaluated.
8. A rock burst risk and impact protection effect evaluation system, characterized in that rock burst risk evaluation and impact protection effect evaluation are simultaneously performed on an object to be evaluated by using the rock burst risk and impact protection effect evaluation method according to any one of claims 1 to 7, the system comprising: A pre-mining evaluation unit configured to take the value of the main control factor of the object to be evaluated to determine the pre-mining macroscopic evaluation result of the rock burst risk of the object to be evaluated And according to the pre-harvest macroscopic evaluation result Determining an initial image of a multi-factor coupling superposition influence area based on an object to be evaluated so as to divide a pre-mining rock burst dangerous area image of the object to be evaluated; The impact resistance evaluation unit is configured to implement comprehensive impact resistance measures on the object to be evaluated according to the pre-mining impact pressure dangerous area graph of the object to be evaluated and the impact pressure type of the object to be evaluated and perform cyclic impact resistance effect evaluation until the impact resistance effect evaluation is effective; the in-mining evaluation unit is configured to optimize the value of the main control factor corresponding to the comprehensive anti-impact measure so as to determine the in-mining macroscopic evaluation result of the rock burst risk of the object to be evaluated And determining a multi-factor coupling superposition influence area correction map of the object to be evaluated so as to divide a mining rock burst dangerous area map of the object to be evaluated.

Description

Method and system for evaluating rock burst danger and impact prevention effect Technical Field The application relates to the technical field of mineral exploitation, in particular to a rock burst danger and impact prevention effect evaluation method and system. Background With the annual increase of the mining intensity and depth of underground coal mines, rock burst disasters become the primary problem for restricting the safe mining of coal, and the rock burst is called as an engineering problem which is not completely recognized and solved in academia and engineering industry so far due to the special reasons of complex and changeable formation conditions, difficult acquisition of induced precursor information, immature prevention and control technology and the like. Rock burst refers to a dynamic phenomenon of sudden and distance damage caused by instantaneous release of elastic properties of coal (rock) bodies around a coal mine roadway or a working surface, and is often accompanied by instantaneous displacement, throwing, ringing, air waves and the like of the coal (rock) bodies. When mining a coal seam having a high impact tendency, impact risk must be evaluated, and mining a rock burst coal seam must be evaluated for impact risk in a mining area or a mining face. Disclosure of Invention The application aims to provide a rock burst risk and impact prevention effect evaluation method and system, which are used for solving or relieving the problems in the prior art. In order to achieve the above object, the present application provides the following technical solutions: The application provides a rock burst risk and impact protection effect evaluation method, which comprises the steps of taking a value of a main control factor of an object to be evaluated to determine a pre-acquisition macroscopic evaluation result of the rock burst risk of the object to be evaluated And according to the pre-harvest macroscopic evaluation resultDetermining an initial image of a multi-factor coupling superposition influence area based on an object to be evaluated to divide a pre-mining rock burst dangerous area image of the object to be evaluated, implementing comprehensive impact prevention measures and performing cyclic impact prevention effect evaluation on the object to be evaluated according to the pre-mining rock burst dangerous area image of the object to be evaluated and the rock burst type of the object to be evaluated until the impact prevention effect evaluation is effective, optimizing the value of a main control factor corresponding to the comprehensive impact prevention measures to determine the in-mining macroscopic evaluation result of the rock burst danger of the object to be evaluatedAnd determining a multi-factor coupling superposition influence area correction map of the object to be evaluated so as to divide a mining rock burst dangerous area map of the object to be evaluated. Preferably, all main control factors of the object to be evaluated are divided into a fixed factor set and a correction factor set, initial values are respectively taken for the main control factors, and evaluation indexes of the fixed factor set and the correction factor set are respectively calculatedTo determine the pre-harvest macroscopic evaluation result of rock burst risk of the object to be evaluated。 Preferably, according to geological parameter conditions of the object to be evaluated, performing attribute conversion and discrimination on convertible factors in rock burst risk influence factors so as to divide all main control factors of the rock burst risk of the object to be evaluated into a fixed factor set and a correction factor set. Preferably, based on the pre-harvest macroscopic evaluation result of the rock burst risk of the object to be evaluatedDetermining a pre-evaluation grade of rock burst risk of an object to be evaluated; And otherwise, overlaying the influence areas of the main control factors of the rock burst risk of the object to be evaluated by a multi-factor coupling overlaying method to obtain an initial diagram of the multi-factor coupling overlaying influence areas of the object to be evaluated. Preferably, in response to the failure of the impact protection effect evaluation, the comprehensive impact protection measure is reformulated and implemented and the impact protection effect evaluation is performed until the impact protection effect evaluation of the comprehensive impact protection measure implemented by the object to be evaluated is effective. Preferably, if the impact prevention effect evaluation is effective, optimizing the value of the main control factor in the correction factor set corresponding to the comprehensive impact prevention measure, and calculating the in-process macroscopic evaluation result of the rock burst risk of the object to be evaluated。 Preferably, based on the optimized value of the main control factor corresponding to the comprehensive anti-impact measure