采动应力与工作面突出指标相关性分析

doi:10.16265/j.cnki.issn1003-3033.2023.S2.0015

中国安全科学学报 ›› 2023, Vol. 33 ›› Issue (S2): 96-99.doi: 10.16265/j.cnki.issn1003-3033.2023.S2.0015

采动应力与工作面突出指标相关性分析

谢亚东¹(), 吴琪璇²^,^**(), 李作泉³, 张建江¹, 权继业¹

¹ 甘肃靖煤能源有限公司魏家地煤矿分公司, 甘肃白银 730913
² 辽宁工程技术大学矿业学院, 辽宁阜新 123000
³ 甘肃靖煤能源有限公司, 甘肃白银 730913

收稿日期:2023-07-10 修回日期:2023-10-17 出版日期:2023-12-30
通讯作者:
**吴琪璇(1999—)男,河南郑州人,硕士研究生,研究方向为矿山安全与灾害防控。E-mail:854870108@qq.com。
作者简介:
谢亚东 (1978—),男,甘肃会宁人,本科,高级工程师,主要从事煤炭安全生产技术综合管理方面的工作。E-mail:3566988046@qq.com。

Correlation analysis of mining stress and working face outburst index

XIE Yadong¹(), WU Qixuan²^,^**(), LI Zuoquan³, ZHANG Jianjiang¹, QUAN Jiye¹

¹ Weijiadi Coal Mine Branch, Gansu Jingmei Energy Co., Ltd., Baiyin Gansu 730913, China
² College of Mining, Liaoning Technical University, Fuxin Liaoning 123000, China
³ Gansu Jingmei Energy Co., Ltd., Baiyin Gansu 730913, China

Received:2023-07-10 Revised:2023-10-17 Published:2023-12-30

摘要/Abstract

摘要：

为准确预测采掘工作面煤与瓦斯突出危险性,以甘肃魏家地煤矿东一采区东1100工作面为例,研究采动应力对突出指标的影响因素。采用数学统计的方法并结合井田情况,通过研究煤层瓦斯压力与钻屑解吸指标二者之间的量化关系,推导出采动应力与瓦斯突出指标之间的关系,通过观测回采工作面的矿压,能够定量分析一定范围内煤体的瓦斯突出指标,通过测量瓦斯突出指标,判断煤体采动应力的分布情况。研究表明:采动应力对瓦斯突出指标产生一定影响,采动应力与钻屑解吸指标可以相互推导求值,两者之间的拟合函数为二次函数关系;随着采动应力的增大,钻屑解吸指标和最大钻屑量均先增大,逐渐趋于平稳后又迅速增大,存在正相关性关系。

关键词: 采动应力, 工作面, 突出指标, 瓦斯, 钻屑量, 钻屑解吸指标

Abstract:

In order to accurately predict the risk of coal and gas outbursts in the mining face, the east 1100 working face of Weijiadi coal mine in Gansu Province was taken as the research object, and the influence factors of mining stress on the outburst index were studied. By using the method of mathematical statistics and combining with the situation of the mine field, the quantitative relationship between the gas pressure of the coal seam and the desorption index of the drilling cuttings was studied, and the relationship between the mining stress and the gas outburst index was deduced. Through the observation of the mine pressure of the mining face, the gas outburst index of the coal body in a certain range could be quantitatively analyzed, and the distribution of the mining stress of the coal body could be judged by measuring the gas outburst index. The results show that mining stress has a certain influence on the gas outburst index. The mining stress and the desorption index of the drilling cuttings can be derived from each other. The fitting function between the two is quadratic. With the increase in mining stress, the desorption index of drilling cuttings and the maximum amount of drilling cuttings increase first, gradually stabilize, and then increase rapidly, indicating a positive correlation.

Key words: mining stress, working face, outburst index, gas, amount of drilling cuttings, desorption index of drilling cuttings

中图分类号:

X936

谢亚东, 吴琪璇, 李作泉, 张建江, 权继业. 采动应力与工作面突出指标相关性分析[J]. 中国安全科学学报, 2023, 33(S2): 96-99.

XIE Yadong, WU Qixuan, LI Zuoquan, ZHANG Jianjiang, QUAN Jiye. Correlation analysis of mining stress and working face outburst index[J]. China Safety Science Journal, 2023, 33(S2): 96-99.

图/表 4

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采动应力与工作面突出指标相关性分析

Correlation analysis of mining stress and working face outburst index

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