宿州学院学报2024，Vol.39Issue(12)：36-41,6.DOI:10.3969/j.issn.1673-2006.2024.12.007
神东保德矿煤层底板采动破坏效应研究
Research on the Effect of Mining Failure in Coal Seam Floor in Baode Mine,Shendong
摘要
Abstract
Currently,China's coal resources are gradually expanding into deeper areas,and phenomena and prob-lems different from shallow mining often occur during the mining process,which poses new challenges to monitoring and management of mining pressure,water hazards,and gas control.Taking Baode Mine in Shendong as an example,this paper uses numerical simulation and on-site detection methods to study the characteristics of coal seam floor mining failure under the consideration of on-site stress conditions.The results show that under the action of horizon-tal tectonic stress field,with the excavation of working face,the stress of top and bottom plate,the failure of plastic zone and the vertical displacement of surrounding rock change and adjust continuously.The maximum stress in front of working face is 25.55 MPa and the maximum failure depth of bottom plate is stable at 30 meters;the well hole combined high-precision microseismic monitoring system can monitor the floor failure depth in real time under mi-ning conditions.The monitoring results show that the depth of bottom plate damage is at most 30 meters,which is consistent with the numerical simulation results.关键词
底板采动破坏/地应力/侧压系数/微震监测/保德矿Key words
Mining failure of coal seam floor/Geostress/Side pressure coefficient/Microseismic detection/Baode Mine分类
天文与地球科学引用本文复制引用
张俊,姚多喜,陈松..神东保德矿煤层底板采动破坏效应研究[J].宿州学院学报,2024,39(12):36-41,6.基金项目
安徽省教育厅中青年教师培养行动优秀青年教师培育一般项目(YQYB2023052) （YQYB2023052）
安徽省教育厅重点科研项目(2023AH052238 （）
2023AH052243) （）
宿州市科技计划重大专项(SZKJXM202309) （SZKJXM202309）
宿州学院博士(后)科研启动基金项目(2022BSK010 （后）
2024BSH005). （）
