The application of GPR and EH4 in the exploration of iron mine goaf

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Guo, Yanpei^1,2 ; Shang, Yandong^1,2 ; Zhang, Wenquan^2

Taian Compus, Shangdong University of Science and Technology, Taian

271019, China^1

State Key Laboratory of Mining Disaster Prevention and Control, Qingdao

266590, China^2

关键词: Geological interpretation;    High resistivity;    High resolution radar;    Line resistivity;    Mined out area;    Time section;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/5/052022/pdf
DOI  :  10.1088/1755-1315/121/5/052022

学科分类：环境科学（综合）

来源: IOP

【 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.