Feasibility study of the transient electromagnetic method for chamber blasting misfire detection and recognition  

作　　者：Liu Liansheng Liang Longhua Wu Jiyang Jiao Yongbin Lu Zhexiang 

机构地区：[1]School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China [2]Jiangxi Key Laboratory of Mining Engineering, Ganzhou, Jiangxi 341000, China [3]Jiangxi Piaotang Tungsten Industry Co. Ltd., Ganzhou, Jiangxi 341515, China

出　　处：《Engineering Sciences》2014年第6期111-116,共6页中国工程科学（英文版）

摘　　要：In this paper,transient electromagnetic method was used to carry out the feasibility study on the detection and recognition of chamber blasting misfire.Firstly,an electromagnetic background field was established in the test;secondly,a benign conductor was preset in the chamber,and then the background field was eliminated after the electromagnetic field was measured;thirdly,the transient electromagnetic field was measured again after blasting;at last,the chamber blasting misfire was detected and recognized by comparing the change of eddy current field of the preset benign conductor before and after blasting.The test results showed that:When the buried depth of aluminum box target was no more than 30 m,transient electromagnetic method can clearly identify the position of the aluminum box;when the buried depth of aluminum box was more than30 m,the buried depth and position of the aluminum box was not sure due to the unknown level of secondary eddy current field generated by aluminum box.

关 键 词：transient electromagnetic methods chamber blasting misfire detection and recognition eddy cur- rent field TARGET 

分 类 号：P631.325[天文地球—地质矿产勘探] TD235.34[天文地球—地质学]