地下导水通道精细刻画对于矿山安全开采以及矿坑水多技术协同治理至关重要。废弃采空区和导水断裂深埋于地下，其复杂的空间结构难以低成本、快速识别。该研究以天马山硫金矿区作为研究区，综合运用瞬变电磁法和高频大地电磁法识别地下导水通道发育情况。研究结果表明，矿区接受大气降水补给的导水通道主要有三处，分别位于矿区西侧的尾矿回填区、40线以南冲沟地形区以及冲沟区西南侧的断层破碎带。其中规模最大的是冲沟地形区域，由于地势较低，地表水汇聚于此形成向下补给的渗漏通道。第四系松散覆盖层之下，局部发育长条形破碎带，形成自地表向下延伸至-700 m的导水通道。整个渗漏区沿着冲沟地形走向，呈北西向展布，在-400 m和-600 m高程分别存在连续的局部最小电阻异常区，推测为岩溶发育的富水区。上述结果表明，应用高频大地电磁技术初步识别局部富水区域以及地层结构特征，再利用瞬变电磁法对主要导水通道进行精细探测，是实现金属矿山地下导水通道低成本、快速、准确识别的有效途径。

Detailed depiction of subsurface water flowing channels is very important for the safe mining and multi-echnical collaborative treatment of mining discharge. Abandoned goafs and water conducted faults are buried deep underground, and their complex spatial structures are difficult to characterize at low cost and quickly. In this study, transient electromagnetic method and high-frequency electromagnetic method were combined to identify the evolution of subsurface water flowing channels in the sulfurgold mining area of Tianma Mountain. The results indicated that there were three main water flowing channels in the mining area to receive atmospheric precipitation recharge, located in the west tailings backfill zone, the gully terrain zone south of Line 40, and the fault fracture zone on the southwest side of the gully zone. The largest was the gully zone, where surface water converged due to the low terrain and formed a seepage channel for downward recharge. Under the Quaternary loose overburden, elongated fracture zones developed locally, generating a water flowing channel extending from the surface to -700 m. The entire seepage zone was distributed in a north-west direction along the trend of the gully topography. There were continuous minimum resistance anomalies at -400 m and -600 m elevations, which were speculated to be local water-rich areas for karst development. The above results suggested that the application of high-frequency electromagnetic method to preliminarily identify the local water-rich areas and stratum structure characteristics, combination with the transient electromagnetic method to carry out fine detection of the main water flowing channels, is an effective way to achieve low-cost, fast, and accurate identification of subsurface water flowing channels in metal mines.