基于钻屑量界限方程的冲击危险性判定新方法
A new method of rock burst hazard determination based on drilling cuttings limit equation
杜才溢 1张玉江 2孟鑫 3李杰 3孔凯 3杜晓峰 3王博 1郭育霞 1刘辉4
作者信息
- 1. 太原理工大学 矿业工程学院,山西 太原 030024;矿山岩层控制及灾害防控山西省重点实验室,山西 太原 030024
- 2. 太原理工大学 矿业工程学院,山西 太原 030024;山东能源集团 博士后科研工作站,山东 济南 250014;矿山岩层控制及灾害防控山西省重点实验室,山西 太原 030024
- 3. 陕西永明煤矿有限公司,陕西 延安 717300
- 4. 山东东山古城煤矿有限公司,山东 济宁 272100
- 折叠
摘要
为提高钻屑法判定冲击危险性的精度,基于钻屑法原理及评价指标,对实际钻屑量数据进行拟合,提出一种基于钻屑量界限方程的冲击危险性判定方法(以下简称"钻屑量界限方程方法"):利用实际钻屑量自回归判定冲击危险性,将钻屑法判定冲击危险性分区细化为冲击危险区、潜在冲击危险区和无冲击危险区.以古城煤矿3208 工作面运输巷为工程背景进行了应用,结果表明:钻屑量界限方程方法与现场动力效应及微震监测指标判定结果相符,可有效提高钻屑法判定冲击危险性的精度,减少误判.
Abstract
In order to improve the accuracy of the drilling cuttings method to determine the rock burst hazard,based on the principle and evaluation index of the drilling cuttings method,the actual drilling cuttings data were fitted,and a new method of rock burst hazard determination based on drilling cuttings limit equation(hereinafter referred to as"cuttings limit equation method")was proposed.This method uses the actual amount of drilling cuttings to determine the rock burst hazard autoregressively,and divides the rock burst hazard zone determined by the drilling cuttings method into rock burst hazard zone,potential rock burst hazard zone and non-rock burst hazard zone.The application was carried out with the headentry of 3208 working face in Gucheng Coal Mine as the engineering background.The results show that the boundary equation method of drilling cuttings is consistent with the results of on-site dynamic effect and microseismic monitoring index determination,which can effectively improve the accuracy of drilling cuttings method to determine the rock burst hazard and reduce the possibility of misjudgment.
关键词
钻屑法/钻屑量/冲击地压/冲击危险性/钻屑指标临界值/判定方法Key words
drilling method/drilling cuttings/rock burst/rock burst hazard/critical value of drilling cuttings index/determination method引用本文复制引用
基金项目
中国博士后科学基金(2020M682215)
国家自然科学基金青年科学基金(52004172)
山西省重点实验室建设项目(202104010910021)
出版年
2024
NETL
NSTL
万方数据