复频电导率探水在煤矿超前预报的试验研究

Experimental Study on Complex Frequency Conductivity for Water Exploration in Advanced Mine Prediction

煤矿中的孔隙、裂隙、断层、破碎带、老空区和承压含水层等岩体含水构造,往往会引发突发状况,对煤矿人员人身安全和开采进度构成威胁。但传统探水技术-瞬变电磁法在掘锚一体机或掘进机的工况下使用受限。针对此类难题,以郭家湾煤矿某些巷道为工程背景,采用复频电导率法对掘进巷道进行超前探测,通过对探水仪器进行防爆隔爆改进,将其整合到掘锚一体机或掘进机上,并简述了复频电导率法的原理、施工方法及成果解释原则。研究结果表明,复频电导率法应用效果良好,探测结果得到开挖验证,为煤矿掘进巷道超前探测提供了一种新的物探手段,在保障煤矿的施工安全和开采进度方面,发挥了重要作用。

Pores,cracks,faults,fractured zones,goafs,and confined aquifers in coal mines often trigger sudden situations,posing a threat to the personal safety and mining progress of coal miners.However,the use of traditional water exploration technology transient electromagnetic method is limited in the construction environment of excavator anchor integrated machine or TBM.In response to such difficulties,taking certain tunnels in Guojiawan coal mine as the engineering background,the complex frequency conductivity method was used to conduct advanced detection research on the excavation tunnels.By improving the explosion-proof and explosion-proof performance of the water exploration instrument,it can be integrated into the integrated excavator or excavator.Briefly describes the principle,construction method,and interpretation principle of the complex frequency conductivity method.The research results indicate that the application effect of the complex frequency conductivity method is good,and the detection results have been verified by excavation,providing a new geophysical method for advanced detection of coal mine excavation tunnels.It can play an important role in ensuring the construction safety and mining progress of coal mines.