瞬变电磁探测技术在马坑铁矿超前探测中的应用和研究  

Application and Research of Transient Electromagnetic Detection Technology in Advanced Detection of Makeng’s Iron Mine

作　　者：金其忠 王金祥 李文杰 Jin Qizhong;Wang Jinxiang;Li Wenjie(Fujian Makeng Mining Co.,Ltd.,Longyan 36400,Fujian)

机构地区：[1]福建马坑矿业股份有限公司,福建龙岩364000

出　　处：《福建冶金》2024年第4期9-12,共4页Fujian Metallurgy

摘　　要：马坑铁矿属于岩溶发育、水文地质类型,属于中等-复杂类型,日均涌水量超过2×10^(4)m^(3),属于大水矿床,因此岩溶水害的防治,可保障施工人员生命安全、施工任务顺利完成。根据安全监管部门规定,井下水害超前探测应采用“物探+钻探”的形式探明溶洞和地下水的发育程度,因此本文阐述采用瞬变电磁法与钻探相结合的综合探测手段,对马坑铁矿掘进巷道+18分段85-2掘进前方开展瞬变电磁超前探测,再辅助钻探工程进行验证,提前探明掘进工作面岩溶发育情况,保障了85-2安全施工,以上表明瞬变电磁超前探测手段在马坑铁矿含水层中可以有效探测异常区域,进而有针对性地采取措施,有效规避岩溶水害的威胁。Makeng iron mine belongs to karst development and hydrogeological type,belonging to medium-complex type,with a daily average water inflow of more than 20,000 m^(3),and is a large water deposit.So the prevention and control of karst water disaster,the utility model can ensure the safety of the construction personnel and the smooth completion of the construction task.According to the regulations of the Safety Supervision Department,the advanced detection of underground water disaster should adopt the form of"Geophysical Exploration+drilling"to explore the development degree of karst caves and groundwater.Therefore,this paper describes the use of transient electromagnetic method and drilling combined with a comprehensive detection means,the excavation tunnel+18 subsection 85-2 Makeng iron mine in front of the implementation of transient electromagnetic advance detection,and then auxiliary drilling engineering to verify,the development of karst in heading face is proved in advance,which ensures the safe construction of 85-2.The above shows that the transient electromagnetic advanced detection method can effectively detect the abnormal area in the aquifer of Makeng iron mine,and then take targeted measures to effectively avoid the threat of karst water damage.

关 键 词：瞬变电磁 超前探测 溶洞 岩溶水害 

分 类 号：TD74[矿业工程—矿井通风与安全] P631.325[天文地球—地质矿产勘探]