摘要
为了研究煤层赋存条件对冲击地压危险性的影响,以郭家河煤矿1310工作面为研究对象,从开采深度、煤岩冲击倾向性、煤层厚度变化、顶板岩层结构、地质构造5个方面进行了分析。研究表明,冲击地压发生的必要条件是煤层自身具有冲击危险性;冲击地压危害经常发生在开采深度大、煤层厚度变化大、厚度越大的坚硬顶板及地质构造带位置,当煤层开采至以上区域时,更容易发生冲击地压,且次数增加、强度加大,是冲击地压防治的关键区域。
In order to study the influence of coal seam occurrence conditions on the risk of rock burst,taking 1310 working face of Guojiahe Coal Mine as the research object,it is analyzed from five aspects:mining depth,coal rock impact tendency,coal seam thickness change,roof rock structure and geological structure.The research shows that the necessary condition for the occurrence of rock burst is that the coal seam itself has the risk of rock burst.rock burst hazards often occur in the hard roof and geological structure belt with large mining depth,large variation of coal seam thickness and greater thickness.When the coal seam is mined to the above areas,rock burst is more likely to occur,with increased frequency and strength,which is the key area for rock burst prevention and control.
作者
刘清洲
曹海涛
翟锦
韩正灿
周兵
刘天文
LIU Qing-zhou;CAO Hai-tao;ZHAI Jin;HAN Zheng-can;ZHOU Bing;LIU Tian-wen(Shaanxi Guojiahe Coal Industry Co.,Ltd.,Baoji 721500,China)
出处
《煤炭科技》
2021年第6期76-80,84,共6页
Coal Science & Technology Magazine
关键词
赋存条件
冲击地压
冲击倾向性
occurrence conditions
rock burst
impact tendency
