In recent years,coal mining airspace has caused more environmental and geologic disaster problems,and the accurate detection of its scope and depth is a prerequisite for the treatment and repair of airspace in the later stage.This paper introduces the basic principles and conditions of transient electromag-netic method and high-density electric method,and carries out the test comparison between the same test line and the mutually perpendicular test line,which explains that the combination of the two methods can avoid the limitations of the methods,and detect the coal mine hollow area more effectively and accurately,and has achieved good practical results.
关键词
瞬变电磁法/高密度电法/煤矿采空区
Key words
transient electromagnetic method/high-density electric method/coal mine goaf
维普
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