等值反磁通瞬变电磁数据的波场反变换方法及其在会泽铅锌矿区井下超前探测中的应用

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摘要会泽铅锌矿区内围岩以弱岩溶化碳酸盐岩为主，矿区内断层破碎带、节理、裂隙及岩溶等构造较为发育，为地下水的富集和运移提供了充足的空间和通道，掘进和开采过程中的突涌水呈现出高水压、大流量的显著特点。因此对含水构造的超前探测刻不容缓。针对上述问题，选取了等值反磁通瞬变电磁法并结合地质与钻探资料在矿山厂1 104 m和924 m两个中段开展了超前探测工作。在获取电阻率剖面的基础上，提出了一种自适应波场反变换方法，将等值反磁通瞬变电磁数据转化为对电性界面敏感的虚拟波场，进而对地层电性结构进行定性刻画。在井下探测之前，针对最大探测深度与信号在空气中的衰减问题，还开展了测深对比试验和空气衰减试验。采用了2.5 Hz的发射基频在矿山场段取得了理想的探测成果，证明了等值反磁通瞬变电磁法和波场反变换的有效性与可靠性。

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	李炼然
	任周洪
	王斌
	张权
	黄灏
	刘吉金
	许浩宇
	郭谦

关键词: 等值反磁通瞬变电磁波场变换自适应反变换岩溶裂隙水铅锌矿

Abstract: In the Huize lead-zinc mining area, the surrounding rocks are mainly weakly karstified carbonate rocks. Structures such as fault fracture zones, joints, fissures, and karsts in the mining area were relatively developed,which provided sufficient space and channels for the enrichment and migration of groundwater. The water inrush during the tunneling and mining processes was characterized by high water pressure and large flow. Therefore, advanced detection of water-bearing structures was urgently required. In response to the above problems, the equivalent anti-flux transient electromagnetic method was selected, combined with geological and drilling data to carry out advanced detection work at the 1 104 m and 924 m levels in the mining area. Based on the obtained resistivity profiles, an adaptive wavefield inverse transformation method was proposed to transform the equivalent anti-flux transient electromagnetic data into a pseudo-wavefield sensitive to electrical interfaces, enabling qualitative characterization of the strata's electrical structure.Prior to underground detection, sounding comparison tests and air attenuation tests were conducted to evaluate the maximum detection depth and signal attenuation in air. By using a transmission fundamental frequency of 2.5 Hz, ideal detection results were achieved in the mining area, demonstrating the effectiveness and reliability of the equivalent anti-flux transient electromagnetic method and the wavefield inverse transformation.

Key words: opposing coils transient electromagnetic method wavefield transform self-adaptive inverse transform karst fissure water lead-zinc mine

收稿日期: 2025-03-12 修回日期: 2025-04-29 发布日期: 2025-04-29

中图分类号:

U452

基金资助: 国家自然科学基金青年基金资助项目（42407260）

作者简介: 李炼然(1975—)，男，云南大理人，高级工程师，主要研究方向为矿山地质和防治水。E-mail:18560753379@163.com

引用本文:

李炼然, 任周洪, 王斌, 张权, 黄灏, 刘吉金, 许浩宇, 郭谦. 等值反磁通瞬变电磁数据的波场反变换方法及其在会泽铅锌矿区井下超前探测中的应用[J]. 隧道与地下工程灾害防治, .
LI Lianran, REN Zhouhong, WANG Bin, ZHANG Quan, HUANG Hao, LIU Jijin, XU Haoyu, GUO Qian. Inverse wavefield transform method for opposing coils transient electromagnetic data and its application in ahead prospecting in the lead-zinc mine at Huize. Hazard Control in Tunnelling and Underground Engineering, 0, (): 1-20.

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