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黄金科学技术 ›› 2017, Vol. 25 ›› Issue (2): 54-61.doi: 10.11872/j.issn.1005-2518.2017.02.054

• 采选技术与矿山管理 • 上一篇    下一篇

频分多址盲炮检测技术与系统在深孔爆破中的应用研究

刘连生1,2,兰德沛1,张声辉1,潘荣森3,蔡建德 4   

  1. 1.江西理工大学资源与环境工程学院,江西  赣州   341000;
    2.江西省矿业工程重点实验室,江西  赣州   341000;
    3.江西铜业股份有限公司永平铜矿,江西  上饶   334506;
    4.广东宏大爆破股份有限公司,广东  广州   510623
  • 收稿日期:2016-12-02 修回日期:2017-02-20 出版日期:2017-04-28 发布日期:2017-05-12
  • 作者简介:刘连生(1979-),男,江西赣州人,男,博士,副教授,从事工程爆破理论与技术教学与研究工作。liulsjxust@163.com
  • 基金资助:

    中国有色金属工业协会与中国工程爆破协会重大科研专项“硐室爆破盲炮检测、识别、排除与高温矿山爆破安全技术”(编号:CSEBKY- 20100001)和江西省科技支撑计划项目“铜矿床井下中深孔爆破开采盲炮快速检测与识别的关键技术与装备”(编号:20142BBE50008)联合资助

Research on Application of Frequency Division Multiple Access Misfire Detection Technology and System in Deep Hole Blasting

LIU Liansheng 1,2,LAN Depei 1,ZHANG Shenghui 1,PAN Rongsen 3,CAI Jiande 4   

  1. 1.School of Resources and Environmental Engineering,Jiangxi University of Science and Technology,Ganzhou   341000,Jiangxi,China;
    2.Jiangxi Key Laboratory of Mining Engineering,Ganzhou   341000,Jiangxi,China;
    3.Yongping Copper Mine,Jiangxi Copper Co.,Ltd.,Shangrao   334506,Jiangxi,China;
    4.Guangdong Hongda Blasting Engineering Co.,Ltd.,Guangzhou    510623,Guangdong,China
  • Received:2016-12-02 Revised:2017-02-20 Online:2017-04-28 Published:2017-05-12

摘要:

针对深孔爆破中盲炮难以检测和识别的问题,开发了基于电磁波传播理论的深孔爆破盲炮频分多址检测技术与系统,并对检测系统的性能进行了试验研究。结果表明:在岩土体中传播的电磁信号发射频率越低其穿透能力越强,传播距离越远;在同等收发水平距离条件下,电磁信号幅值随着盲炮埋深的增加而减小,同时随着地下信号发生器发射频率的增大而减小;而且随着频率的增大,衰减趋势更明显。该盲炮检测系统良好的频响范围是2 012~5 025 Hz,对埋深≤40 m和收发水平距离≤30 m的深孔爆破盲炮,具有良好的检测识别能力。频分多址盲炮检测技术与系统可满足深孔爆破盲炮检测的要求。

关键词: 深孔爆破盲炮, 盲炮检测识别, 频分多址法, 盲炮埋深, 电磁信号幅值

Abstract:

Regarding the problem of the misfire in deep hole blasting,which it is difficult to detect and identify,the frequency division multiple access misfire detection technology and system based on electromagnetic wave propagation theory is developed,meanwhile,the performance of the detection system is studied.The results show that with the lower transmitting frequency of electromagnetic signal in rock-soil body,the penetration ability will be stronger and the transmission distance will be farther.Based on the condition of same horizontal distance,the amplitude variation of electromagnetic signal decreases with the increase of buried depth of the misfire,it also decreases with the increase of emission frequency of the underground signal generator,and the attenuation tendency with the increase of emission frequency is more obvious.The system response more obvious to frequency in 2 012~5 025 Hz,it has a better recognition ability when the misfires are located in the depth less than or equal to 40 m and the distance less than or equal to 30 m.Frequency division multiple access misfire detection technology and system can be successed for the detection of misfire in deep hole blasting.

Key words: deep hole blasting misfire, misfire detection and identification, frequency division multiple access method, misfire depth of subsurface, electromagnetic signal amplitude

中图分类号: 

  • TD85

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[1] 刘连生,刘江超,董贵法,廖敏敏,蔡建德. 频分多址检测法在硐室爆破盲炮识别过程中电雷管安全性试验研究[J]. 黄金科学技术, 2016, 24(5): 73-79.
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