煤层群开采端面冒顶事故发生机理与控制  

Mechanism and control of end face roof fall accident in coal seam group mining

作　　者：石鹏 秦松 帅运林 胡品品 SHI Peng;QIN Song;SHUAI Yunlin;HU Pinpin(School of Mining,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州大学矿业学院,贵州贵阳550025

出　　处：《陕西煤炭》2022年第1期121-125,共5页Shaanxi Coal

基　　金：贵州大学大学生创新基金(S202010657035)。

摘　　要：针对贵州煤层群开采过程中,受地形构造、重复采动等影响,顶板容易破碎,端面顶板稳定性差,容易出现端面冒顶、煤壁片帮等灾变问题。通过对贵州煤层群在重复采动下的端面顶板失稳机理进行研究,从煤矿安全生产实际出发,结合数值模拟试验与物理实验的方法对贵州省煤矿的端面冒顶进行探究,分析影响端面冒顶的因素,剖析其作用机理。以端面冒顶事故发生的机理为基础,提出端面冒顶控制技术及防治措施,并用模拟试验进行验证,保证此类煤矿安全、高效生产。In the process of coal seam group mining,affected by topographic structure and repeated mining,the roof is easy to break,the stability of end face roof is poor,and end face roof fall and coal wall caving are easy to occur.Through the research on the instability mechanism of end face roof of coal seam group in Guizhou Province under repeated mining,based on the reality of coal mine safety production,the end face roof fall of coal mines in Guizhou Province is researched by using the methods of numerical simulation calculation and physical experiment,the factors affecting end face roof fall are analyzed,and its action mechanism is discussed.Based on the mechanism of end face roof fall accident,the control technology and prevention measures of end face roof fall are put forward and verified by simulation experiment,so as to ensure the safe and efficient production of coal mine.

关 键 词：煤层群 重复采动 端面冒顶 冒顶事故 

分 类 号：TD327.2[矿业工程—矿井建设]