探地雷达与高密度电阻率法在采矿空洞探测中的综合应用

Comprehensive Application of Ground Penetrating Radar and High-Density Resistivity Method to Detection of Mining Cavity

利用联合物探方法详查矿山尾矿区内的采矿空洞及采空区。高密度电法在对异常体的数据进行处理时,由于平滑处理作用,不易发现到较小的采矿空洞,并有对异常区扩大的作用。地质雷达的探测深度又极为有限,但在较浅层,其勘探的精度较好。所以,针对工区的采矿空洞埋深不是很深的特点(据工区资料显示,其深度在10m左右),将地质雷达和高密度电法联合应用,加密点距进行数据采集,再对其数据进行综合处理、推断解释,提高对采矿空洞及采空区的探明。特别是在对已知的采矿空洞的基础上进行了实验,利用其物性参数对该工区加以应用,极大提高了工作效率和对采矿空洞的探明准确性。

This paper uses the combined geophysical methods to prospect the mine tailings area of the mining hole.When the high density resistivity method is used to deal with the abnormal data,it is not easy to find a small hole and has the influence for the enlargement of abnormal areas due to smoothing action.The exploration depth of GPR is very limited,but its accuracy is better in the shallow layer.So,in this paper,aiming at the characteristic that the depth of empty hole is not large（according to a survey at the depth of about 10meters）,it uses the combined application of geological radar and high density resistivity method to collect the data for point encryption and then the data will be processed comprehensively and integrated,which will improve the ascertain of mined holes and mined out areas.In particular,on the basis of the known hole,experiments are carried out,and its physical properties are used to improve the work efficiency and the accuracy of the hole.