摘要
为便于执行《煤矿安全规程》和《防治煤矿冲击地压细则》中关于开采冲击地压煤层孤岛煤柱应进行防冲安全论证的规定,提出一种孤岛工作面防冲安全开采论证方法,并进行工程应用。结果表明:孤岛工作面防冲安全开采论证包括冲击地压矿井属性论证,孤岛工作面冲击类型论证,孤岛工作面冲击危险等级评价,矿井防冲能力论证;依据煤层冲击倾向性鉴定结果和煤层冲击危险性评价结果论证煤层冲击地压属性,进而得到冲击地压矿井属性;对于冲击地压矿井,根据孤岛工作面支承压力分布论证冲击地压类型;在开展冲击危险因素排查和冲击危险性评价的基础上,计算防冲工程量;依据矿井防冲机构与人员配备情况、监测系统覆盖能力、卸压机具配备情况,论证矿井防冲能力;最后,综合冲击地压类型、冲击危险等级及防冲能力与防冲工程量之间的关系,得到能否保障安全开采的结论。
In order to implement the regulations of Coal Mine Safety Regulations and Detailed Rules for Prevention and Control of Coal Mine Rock Burst on the safety demonstration of island coal panel mining in coal seam with rock burst,a demonstration method of island coal pan⁃el mining safety is proposed and applied in engineering.The results show that:the demonstration of safety mining for prevent rock burst of island coal panel includes the demonstration of the attribute of rock burst mine,the demonstration of rock burst type of island coal panel,the evaluation of rock burst risk level of island coal panel and the demonstration of ability to prevent rock burst of mine.According to the i⁃dentification results of coal seam rock burst tendency and the evaluation results of coal seam rock burst risk,the rock burst attribute of coal seam is demonstrated,and then the rock burst attribute of mine is obtained.The types of rock burst are demonstrated according to the abut⁃ment pressure distribution of island coal panel.The engineering quantity of preventing rock burst is calculated based on the investigation of rock burst risk factors and evaluation of rock burst risk.The ability to prevent rock burst is demonstrated according to the allocation of in⁃stitutions and personnel for rock burst prevention,the coverage capacity of monitoring system and the allocation of pressure relief equip⁃ment.Finally,the conclusion of whether the safe mining can be ensured is obtained according to the types of rock burst,rock burst risk lev⁃el and the relationship between the ability to prevent rock burst and the engineering quantity of preventing rock burst.
作者
刘金海
黄涛
王悦平
朱斯陶
李乃禄
刘虎
董续凯
LIU Jinhai;HUANG Tao;WANG Yueping;ZHU Sitao;LI Nailu;LIU Hu;DONG Xukai(School of Emergency Technology and Management,North China Institute of Science and Technology,Beijing 101601,China;School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China;Bin County Shuiliandong Coal Co.,Ltd.,Xianyang 713500,China;Shandong Energy Group Co.,Ltd.,Jinan 250000,China)
出处
《煤炭科学技术》
CAS
CSCD
北大核心
2021年第6期88-93,共6页
Coal Science and Technology
基金
国家自然科学基金资助项目(51874133,51904017)。
关键词
冲击地压
孤岛工作面
冲击类型
防冲能力
防冲工程量
rock burst
island coal panel
rock burst type
ability to prevent rock burst
engineering quantity of preventing rock burst
