地面定向钻超前探查陷落柱技术与实践  

Technology and practice of surface directional drilling advance detection for karst subsided column

作　　者：董兵[1] 朱乐意 甘圣丰[1] DONG Bing;ZHU Leyi;GAN Shengfeng(Anhui Wanbei Coal-Electricity Group Co.,Ltd.,Suzhou,Anhui 234000,China)

机构地区：[1]安徽省皖北煤电集团有限责任公司,安徽省宿州市234000

出　　处：《中国煤炭》2022年第S02期94-100,共7页China Coal

摘　　要：针对岩溶陷落柱等垂向构造在井下超前探查困难等问题,在任楼煤矿新采区中六采区采用地面区域定向超前探查技术探查区域内是否存在陷落柱等导水构造,通过观测钻井液漏失情况,未探查到断层裂隙或陷落柱等垂向导水通道,并进行钻孔轨迹与地质录井的综合分析。结果表明,探查区域未发现断层裂隙或隐伏陷落柱等垂向导水隐蔽致灾因素,实现了掩护7_(2)64、8_(2)64工作面的目的,达到了利用新技术探查隐蔽致灾构造的效果。In view of the difficulties in underground advance detection for vertical structures such as karst subsided columns,the surface regional directional advance detection technology is used in the sixth mining area of the new mining area of Renlou Coal Mine to detect the subsided columns and other water conducting structures in the area.By observing the leakage of drilling fluid,the vertical water channels such as fault fractures or subsided columns are not detected,and the comprehensive analysis is carried out by drilling trajectory and geological logging.The results show that there are no hidden disaster-causing factor such as fault fissures or hidden subsided columns in the exploration area,realizing the safe mining 7_(2)64 and 8_(2)64 working faces and the hidden disaster-causing structure detection by new technology.

关 键 词：岩溶陷落柱 地面定向钻超前探查 地质录井 导水通道 

分 类 号：P631[天文地球—地质矿产勘探]