CAJ | 학술논문

采取有效技术手段进行煤矿采空区调查已成为矿区生态环境治理、矿井安全生产和重大工程建设项目选址中亟需解决的问题。本文以频率域电磁法基本原理为基础，对比分析 EH?4电导率成像系统和可控源音频大地电磁法（CSAMT）的方法特点，通过数值模拟探讨不同介质充填采空区的电性响应特征，并结合典型工程实例对 EH?4电导率成像系统和可控源音频大地电磁法探测煤矿采空区的实际应用效果进行分析。数值模拟结果和工程实践表明，煤矿采空区相对围岩具有显著的电性差异，以此为物性基础采用频率域电磁法进行采空区探测可以取得较为理想的效果。频率域电磁法在探测煤层采空区方面是一种行之有效的方法，可以成为煤矿防治水和采空区地质灾害调查的有效技术方法。
채취유효기술수단진행매광채공구조사이성위광구생태배경치리、광정안전생산화중대공정건설항목선지중극수해결적문제。본문이빈솔역전자법기본원리위기출，대비분석 EH?4전도솔성상계통화가공원음빈대지전자법（CSAMT）적방법특점，통과수치모의탐토불동개질충전채공구적전성향응특정，병결합전형공정실례대 EH?4전도솔성상계통화가공원음빈대지전자법탐측매광채공구적실제응용효과진행분석。수치모의결과화공정실천표명，매광채공구상대위암구유현저적전성차이，이차위물성기출채용빈솔역전자법진행채공구탐측가이취득교위이상적효과。빈솔역전자법재탐측매층채공구방면시일충행지유효적방법，가이성위매광방치수화채공구지질재해조사적유효기술방법。
Detecting coal mined?out areas with effective measures has been major issue to be addressed in mining area environment management, mine safe production and major construction projects site selection. Based on the fundamental principle of frequency do?main electromagnetic method (FDEM), method characteristics of EH?4 and CSAMT was compared and analyzed, electrical character?istic of mined?out area filled with different materials was analyzed through numerical modeling, and practical detecting effect was dis?cussed by typical project cases of EH?4 and CSAMT. Numerical modeling result and engineering practice prove that compared with sur?rounding rock mined?out area has prominent electrical difference, and base on this physical property mined?out area detecting with FDEM can obtain ideal effect. FDEM is an effective method in detecting coal mined?out area and it has already been an effective tech?nological means in coal mine water prevention and control and geological disaster survey of mined?out area.