花岗岩自膨胀开裂破坏力电磁效应试验研究

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Abstract This paper proposes an experimental system to monitor the phenomenon of electromagnetic radiation during the granite failure. By conducting the self-expanding experiment of granite，the electromagnetic response on basis of cracking procedure is studied. The experimental results show that：in rock main rupture instantly，the largest electromagnetic radiation occurs with value of about 0.2 mV. The propagation，coalescence of microcracks lead rock to catastrophe failure accompanied by a strong electromagnetic signal. Electromagnetic radiation has directionality during rock fracture process；the frequency of the electromagnetic signal is low；and there is a characteristic frequency for releasing radiate energy in rupture process.

Key words： rock mechanism cracking self-expansion electromagnetic mechanism

Received: 20 May 2013

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/I11/2196

[1]	GRIFFITH A A. The phenomena of rupture and flow in solids[J]. Philosophical Transactions of the Royal Society of London，1921，221(1)：163-197. " target="_blank">
[2]	林鹏. 含裂纹与孔洞缺陷介质的脆性破坏行为[J]. 岩石力学与工程学报，2002，21(8)：1 283.(LIN Peng. Brittle failure behaviour of medium containing flaws and pores[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(8)：1 283.(in Chinese)) " target="_blank">
[3]	TANG C A，LIN P，WONG R H C，et al. Analysis of crack coalescence in rock-like materials containing three flaws—part II：numerical approach[J]. International Journal of Rock Mechanics and Mining Sciences，2001，38(7)：925-936. " target="_blank">
[4]	何学秋，王恩元，聂百胜，等. 煤岩流变电磁动力学[M]. 北京：科学出版社，2003：11-15.(HE Xueqiu，WANG Enyuan，NIE Baisheng，et al. Electromagnetic dynamics of coal or rock rheology[M]. Beijing：Science Press，2003：11-15.(in Chinese)) " target="_blank">
[5]	WARWICK J W，STOKER C，MEYER T R. Radio emission associated with rock fracture：possible application to the great Chilean earthquake of May 22，1960[J]. Journal of Geophysical Research，1982，87(4)：2 851-2 859. " target="_blank">
[6]	PARROT M，LEFEUVRE F. Correlation between GEOS VLF emissions and earthquakes[J]. Annals of Geophysics，1985，3(11)：737-748. " target="_blank">
[7]	FRASER-SMITH A C，BERNARDI A ，MCGIL P R. Low-frequency magnetic field measurements near the epicenter of the Ms 7.1 Loma Prieta earthquake[J]. Geophysical Research Letters，1990，17(9)：1 465-1 468. " target="_blank">
[8]	ADAMS M H. Some observations of electromagnetic signals prior to California earthquakes[J]. Journal of Geochemical Exploration，1990，4(2)：137-152. " target="_blank">
[9]	钱书清，郝锦绮，周建国，等. 1999年9月21日台湾集集Ms 7.4地震前VLF电磁信号及其与模拟试验结果的比较[J]. 地震学报，2001，23(3)：322-327.(QIAN Shuqing，HAO Jinqi，ZHOU Jianguo，et al. ULF electromagnetic precursors before 1999 Jiji，Taiwan earthquake and the comparison with results of simulating experiments[J]. Acta Seismologica Sinica，2001，23(3)：322-327.(in Chinese)) " target="_blank">
[10]	汤吉，詹艳，王立凤，等. 5月12日汶川8.0级地震强余震观测的电磁同震效应[J]. 地震地质，2008，30(3)：739-744.(TANG Ji，ZHAN Yan，WANG Lifeng，et al，Coseismic signal associated with aftershock of the Ms 8.0 Wenchuan earthquake[J]. Seismology and Geology，2008，30(3)：739-744.(in Chinese))
[11]	万国香，李夕兵. 岩石破裂电磁辐射幅值与岩石属性参数的关系[J]. 力学与实践，2008，30(2)：70-73.(WAN Guoxiang，LI Xibing. The relationship between the electromagnetic radiation(EMR) and rock masses parameters during rock failure[J]. Mechanics in Engineering，2008，30(2)：70-73.(in Chinese))
[12]	王恩元，何学秋，刘贞堂，等. 受载岩石电磁辐射特性及其应用研究[J]. 岩石力学与工程学报，2002，21(10)：1 473-1 477.(WANG Enyuan，HE Xueqiu，LIU Zhengtang，et al. Study on electromagnetic emission characteristics of loaded rock and its applications[J]. Chinese Journal of Rock Mechanics and Engineering，2002，21(10)：1 473- 1 477.(in Chinese))
[13]	陈国强. 岩石变形与电磁辐射的试验研究[硕士学位论文][D]. 北京：中国地震局地质研究所，2009.(CHEN Guoqiang. An experimental on rock deformation and electromagnetic emission[M. S. Thesis]D]. Beijing：Institute of Geology，China Earthquake Administration，2009. (in Chinese)) " target="_blank">
[14]	陈国强，刘力强，刘培洵，等. 实验室岩石变形电磁信号的观测系统[J]. 辽宁工程技术大学学报：自然科学版，2010，29(1)：20-23.(CHEN Guoqiang，LIU Liqiang，LIU Peixun，et al. Electromagnetic emission measurement system for rock deformation experiment[J]. Journal of Liaoning Technical University：Natural Science，2010，29(1)：20-23.(in Chinese))
[15]	郝锦绮，黄平章，张天中. 岩石剩余磁化强度的应力效应[J]. 地震学报，1989，11(4)：381-390.(HAO Jinqi，HUANG Pingzhang，ZHANG Tianzhong. The stress effect on remanent magnetization of rocks[J]. Acta Seismologica Sinica，1989，11(4)：381-390.(in Chinese)) " target="_blank">
[16]	北京大学地球物理系地球物理教研室地电组，兰州地震大队预报室. 岩石视电阻率与压力关系的试验[J]. 北京大学学报：自然科学版，1978，(2)：92-100.(The Geoeletric Testing Group，Department of Geophysics，Peking University，The Research Division，Seismological Brigade of Lanzhou. Laboratory study on relations between apparent resistivities of rock and pressure[J]. Acta Scicentiarum Naturalum Universities Pekinesis，1978，(2)：92-100.(in Chinese)) " target="_blank">
[17]	郝锦绮，刘力强，龙海丽，等. 双轴压力下岩样自电位变化试验的新结果[J]. 地球物理学报，2004，47(3)：475-482.(HAO Jinqi，LIU Liqiang，LONG Haili，et al. New result of the experiment on self-potential change of rocks under biaxial compression[J]. Chinese Journal of Geophysics，2004，47(3)：475-482.(in Chinese))
[18]	NANNAPANENI N R. Fundamentals of electromagnetics for electrical and computer engineering[M]. [S.l.]：Pearson Education，2009：120-123. " target="_blank">
[19]	康绳祖. 岩石开裂破坏力电磁响应机制研究[硕士学位论文][D]. 北京：清华大学，2012.(KANG Shengzu. Study on mechanical- electromagnetic effects of rock cracking[M. S. Thesis][D]. Beijing：Tsinghua University，2012.(in Chinese)) " target="_blank">
[20]	王延生，张桂清，江云安，等. 高效无声破碎剂[J]. 北京：中国建筑材料科学研究院学报，1990，2(3)：55-61.(WANG Yansheng，ZHANG Guiqing，JIANG Yun?an，et al. High soundless cracking agent[J]. China Building Materials Science and Technology，1990，2(3)：55-61.(in Chinese))
[21]	LIN P，LIU X L，KANG S Z，et al. Theoretical analysis of electromagnetic emission of tensile cracking in rock[C]// Sinorock 2013. Shanghai：[s.n.]，2013：335-338 " target="_blank">