期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：121
期号：5
页码：052022
DOI：10.1088/1755-1315/121/5/052022
语种：English
出版社：IOP Publishing
摘要：To study the distribution of goaf at Heiwang iron mine, the iron ore goaf detection was given prior to with GPR method and the EH4 method was used to supplement in the goaf of the deeper and larger areas. The high resolution radar time section and EL line resistivity inversion section were determined. The reliable geological interpretation was studied. It was shown that there existed suspected large mined-out area within the pile number of 0~80m of buried deep below 50m. There was a big volume of mined-out area within the pile number of -30~60m of buried deep below 50m. The high resistivity distribution region of the elevation of within the pile number of -30~140m of buried deep below 120m was inferred to be an unmineralized orite layer. It was proved that the two methods could complement each other and improved the accuracy of the evaluation of goaf.
