刘连生;廖敏敏;周子荣;蒋家卫;
LIU Lian-sheng;LIAO Min-min;ZHOU Zi-rong;JIANG Jia-wei;Faculty of Resource and Environmental Engineering,Jiangxi University of Science and Technology;Jiangxi Key Laboratory of Mining Engineering,Jiangxi University of Science and Technology;

• 1:江西理工大学资源与环境工程学院
• 2:江西理工大学江西省矿业工程重点实验室

摘要(Abstract)：

为探明硐室爆破中的盲炮,在高精度磁法、瞬变电磁法和瞬态电磁耦合法的研究基础上研究开发了频分多址法。该法是利用电磁波在大地中的传播规律,在不同装药硐室中预置发射不同频率的电磁信号发生器,在地面安装无线检测接收系统,通过接收到的不同频率信号来实现硐室盲炮检测与识别。试验结果表明,电场信号信噪比低、反应微弱,磁场信号的信噪比高,采用频率在1000Hz左右的磁场信号作为检测的信号源的实用性更好;频分多址法可以检测与识别出地下225m的盲炮,能满足地下硐室盲炮检测的距离要求;检测精度可达到2Hz,能同时有效地检测与识别地下单个及多个盲炮的存在。
In order to proved the misfire in the chamber blasting,the method of frequency divison multiple access was carried on the theoretical feasibility analysis and experimental demonstration on the basis of high-precision magnetic method,transient electromagnetic method and transient electromagnetic coupling method.At first,presenting the signal generator which can send different signals in different chambers,installing a wireless receiving inspection system on the ground.Then the propagation rules of electromagnetic wave in the earth was used,compared with the difference electromagnetic field difference before and after.At last,achieving the objective of detection and identification of misfire in chamber blasting by identifying the different frequency electromagnetic signal.The experiment showed that electric signal and magnetic signal could be used as a detection signal,but the signal to noise ratio was high and the response was weak of the electric signal.In actual application,the magnetic signal as the detection signal should be chosen.Frequency divison multiple access method could detect 225 m underground misfire which can satisfy the demands of detection distance.Precision could be up to 2Hz.Frequency divison multiple access method can effectively detect and identify the single or multiple misfire at the same time.

关键词(KeyWords)： 盲炮;硐室爆破;频分多址法;盲炮检测
Misfire;Chamber blasting;Frequency divison multiple access method;Misfire detection

Abstract:

Keywords:

基金项目(Foundation): 中国有色金属工业协会与中国工程爆破协会联合资助的重大专项科研专项(CSEBKY20100001);; 江西省科技支撑计划项目(20142BBE50008)

作者(Authors): 刘连生;廖敏敏;周子荣;蒋家卫;
LIU Lian-sheng;LIAO Min-min;ZHOU Zi-rong;JIANG Jia-wei;Faculty of Resource and Environmental Engineering,Jiangxi University of Science and Technology;Jiangxi Key Laboratory of Mining Engineering,Jiangxi University of Science and Technology;

参考文献(References)：

• [1]GB 6722-2014爆破安全规程[S].北京:中国标准出版社,2014.GB 6722-2014Safety regulations for blasting[S].Beijing:China standards press,2014.
• [2]刘殿中,杨仕春.工程爆破实用手册(第2版)[M].北京:冶金工业出版社,2003.LIU Dian-zhong,YANG Shi-chun.Engineering blasting manual[M].2nd ed.Beijing:Metallurgical Industry Press,2003.
• [3]林大泽.硐室大爆破填塞物动力学导论[M].北京:地质出版社,2004.LIN Da-ze.An introduction to large cavern blasting tamping dynamics[M].Beijing:Geology Publishing House,2004.
• [4]李启月,刘高,黄治成,等.基于小波变换的时-能密度法的盲炮识别研究[J].矿冶工程,2011,31(2):1-4.LI Qi-yue,LIU Gao,HUANG Zhi-cheng,et al.Study on misfire identification by time-energy density analysis based on wavelet transform[J].Mining and Metallurgical Engineering,2011,31(2):1-4.
• [5]方明山.一次硐室盲炮的原因分析及处理[J].爆破,2000,17(4):109-111.FANG Ming-shan.Reasons of misfire in chamber blasting and its disposal[J].Blasting,2000,17(4):109-111.
• [6]STANDER M,SOLOMON V J,MACNULTY N.Converting Anglo Platinum mines from capped fuse and igniter cord blast initiation systems to shock tube blast initiation systems[C]/Third International Platinum Conference's Platinum in Transformation.The Southem African Institute of Mining and Metallurgy,2008.
• [7]汪旭光.中国典型爆破工程与技术[M].北京:冶金工业出版社,2006.WANG Xu-guang.Typical blasting engineering and technology of China[M].Beijing:Metallurgical Industry Press,2006.
• [8]刘连生,邱金铭,焦永斌,等.高精度磁法用于硐室盲炮检测的可行性探讨[J].工程爆破,2013,19(5):19-22.LIU Lian-sheng,QIU Jin-ming,JIAO Yong-bin,et al.Afeasibility study of the high precision magnetic method for chamber blasting misfire detection[J].Engineering Blasting,2013,19(5):19-22.
• [9]刘连生,梁龙华,吴吉洋,等.瞬变电磁法用于检测语识别硐室盲炮的可行性探讨[J].中国工程科学,2014,16(11):107-112.LIU Lian-sheng,LIANG Long-hua,WU Ji-yang,et al.Feasibility study of the transientel ectromagnetic method for chamber blasting misfire detection and recognition[J].Engineering Sciences,2014,16(11):107-112.
• [10]刘连生,周子荣,梁龙华,等.瞬态电磁耦合法检测与识别硐室盲炮的可行性探讨[J].工程爆破,2015,21(3):60-68.LIU Lian-sheng,ZHOU Zi-rong,LIANG Long-hua,et al.Feasibility study on the transient electromagnetic coupling method in detection and identification of misfire in chamber blasting[J].Engineering Blasting,2015,21(3):60-68.
• [11]薛军平,龙霞,席振铢,等.实测1~100kHz大地电磁场分析[J].地球物理学进展,2014,29(6):2566-2571.XUE Jun-ping,LONG Xia,XI Zhen-zhu,et al.Measured magnetotelluric field in 1~100kHz frequency band[J].Progress in Geophysics,2014,29(6):2566-2571.