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[1]王云刚,唐飞,杜炳成,等.超长回采工作面微震特征的影响因素研究*[J].中国安全生产科学技术,2022,18(8):91-97.[doi:10.11731/j.issn.1673-193x.2022.08.014]
 WANG Yungang,TANG Fei,DU Bingcheng,et al.Study on influencing factors of microseismic characteristics of ultra-long mining face[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(8):91-97.[doi:10.11731/j.issn.1673-193x.2022.08.014]
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超长回采工作面微震特征的影响因素研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年8期
页码:
91-97
栏目:
职业安全卫生管理与技术
出版日期:
2022-08-31

文章信息/Info

Title:
Study on influencing factors of microseismic characteristics of ultra-long mining face
文章编号:
1673-193X(2022)-08-0091-07
作者:
王云刚唐飞杜炳成孔祥岩
(1.河南理工大学 安全科学与工程学院,河南 焦作 454000;
2.河南理工大学 河南省瓦斯地质瓦斯治理省部共建国家重点实验室培育基地,河南 焦作 454000;
3.河南理工大学 煤炭安全生产河南省协同创新中心,河南 焦作 454000)
Author(s):
WANG Yungang TANG Fei DU Bingcheng KONG Xiangyan
(1.School of Safety Science and Engineering,Henan Polytechnic University,Jiaozuo Henan 454000,China;
2.State Key Laboratory Cultivation Base for Gas Geology and Gas Control,Henan Polytechnic University,Jiaozuo Henan 454000,China;
3.Collaborative Innovation Center of Coal Safety Production of Henan Province,Henan Polytechnic University,Jiaozuo Henan 454000,China)
关键词:
微震监测冲刷构造推进速度矿压
Keywords:
microseismic monitoring scouring structure advancing speed mining pressure
分类号:
X936;TD324
DOI:
10.11731/j.issn.1673-193x.2022.08.014
文献标志码:
A
摘要:
为探讨超长工作面微震特征影响因素,采用微震监测技术研究42108工作面微震事件的空间分布特征及冲刷构造、推进速度、矿压对煤岩体微震事件特征的影响机制。研究结果表明:微震事件集中发生于工作面辅运巷侧,微震事件的空间分布受临近采空区、上覆煤层煤柱影响较大;微震事件能量和空间分布特征与推进速度相关性较差,当推进速度超过5.5 m/d后,微震事件频次、总能量与推进速度呈正相关;过冲刷构造时工作面推进速度降低,微震能量、频次的稳定性较差,易造成大能量积聚,使工作面危险性增大;微震事件集中发生位置与矿压值较大区域相吻合。
Abstract:
In order to explore the influencing factors of the microseismic characteristics of ultra-long mining face,the microseismic monitoring technology was used to study the spatial distribution characteristics of microseismic events in 42108 working face and the influencing mechanism of scouring structure,advancing speed and mining pressure on the characteristics of microseismic events in coal and rock mass.The results showed that the microseismic events mainly occurred at the side of the auxiliary transportation roadway of the working face,and the spatial distribution of microseismic events was greatly affected by the adjacent goaf and the overlying coal pillar;The correlation between the energy and spatial distribution characteristics of microseismic events and the advancing speed was poor,and when the advancing speed exceeded 5.5 m/d,the frequency and total energy of microseismic events were positively correlated with the advancing speed;When passing through the scouring structure,the advancing speed of the working face decreased,the stability of the microseismic energy and frequency was poor,which was easy to cause the accumulation of large energy and increase the risk of the working face;The concentrated location of microseismic events was consistent with the region with large mining pressure.

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备注/Memo

备注/Memo:
收稿日期: 2021-07-08;网络首发日期: 2022-05-13
* 基金项目: 国家自然科学基金项目(U1704129,51804099);河南省基础与前沿技术研究计划项目(14230013211)
作者简介: 王云刚,博士,教授,主要研究方向为瓦斯灾害防治和安全监测理论与技术。
通信作者: 唐飞,硕士研究生,主要研究方向为煤矿动力灾害防治和安全监测。
更新日期/Last Update: 2022-09-19