摘要
为保证电缆设施的安全,测试了煤层冲击倾向性,为电缆巷道围岩冲击预测提供指导,在现场安装钻孔应力计和锚杆(索)测力计,对电缆巷道围岩变形和受力进行监测,及时对冲击危险区域进行防治。研究结果表明,工作面煤层具有弱冲击倾向,在采动影响下,电缆巷道超前影响范围为50~60m,为电缆巷道超前预防提供安全距离。采用卸压钻孔措施对冲击危险区域进行解危,电磁辐射监测效果良好。研究成果保证了工作面回采过程中电缆巷道的完整性,确保了电缆的正常工作,为类似条件电缆防护提供指导价值。
In order to ensure the safety of cable facilities,the impact tendency of coal seam is tested,which provides guidance for the impact prediction of surrounding rock of cable tunnel.The borehole stress meter and anchor(cable)dynamometer are installed on site to monitor the deformation and stress of surrounding rock of cable tunnel and prevent the impact dangerous area in time.The results show that coal seam in working face has weak impact tendency,under the influence of mining,the advance influence range of cable tunnel is 50~60m,provide safe distance for advance prevention of cable tunnel.Using pressure relief drilling to solve the danger in the area of impact danger,good monitoring effect of electromagnetic radiation.The research results ensure the integrity of the cable tunnel in the mining process of the working face,ensure the normal operation of the cable,and provide guidance value for cable protection under similar conditions.
作者
朱峰
刘相楠
胡宾鑫
付建伟
王公华
马刚
张慧民
ZHU Feng;LIU Xiangnan;HU Binxin;FU Jianwei;WANG Gonghua;MA Gang;ZHANG Huimin
出处
《中国矿山工程》
2020年第2期46-50,共5页
China Mine Engineering
关键词
冲击倾向性
围岩变形监测
钻孔卸压
电磁辐射
outburst-proneness
surrounding rock deformation monitor
drillhole pressure relief
electromagnetic radiation
作者简介
朱峰(1990-),男,博士,助理研究员,从事冲击地压预测及防治技术,光纤微震监测技术研究。
