煤样失稳破坏的多参量监测试验
|
摘要
为有效提取由于巷道掘进及工作面回采扰动所诱发的煤岩体剧烈失稳破坏的前兆信息,针对煤样在外载荷作用下失稳破坏前会伴随弹性波、电荷、温度等信号的异常变化的特性,进行包括运用声发射仪、LCR电桥、红外热像仪及静态应变仪等设备在内的监测设备对煤样在单轴加载下的失稳破坏过程进行同步监测;通过建立同一时间坐标轴对多参量监测数据进行对比分析,研究试样失稳破坏前各参量的演化规律;运用多元统计分析中的主成分分析及因子分析方法对多参量监测数据进行分析,发现声发射监测结果能较好地体现出试样破坏的前兆特征,并与应力结果相结合分析可以更好地掌握其失稳破坏的前兆信息。
In order to obtain the precursor information of intense instability destruction of coal and rock mass which is induced by the deep mining,roadway excavation and face mining disturbance,according to the abnormal signal of coal samples would produce under external loads,which include elastic wave,charge,temperature signals,etc.,monitoring devices including acoustic emission instrument,LCR bridge,infrared thermograph and static strain devices are used to synchronously monitor the failure process under uniaxial compression.In order to study the multiparameter evolution characteristics,all data are selected in the same time axis.Meanwhile,principal component analysis and factor analysis in multivariate statistical analysis are used to analyze the original monitoring results of multiparameter;and the results show that acoustic emission and stress monitoring results could better reflect the characteristics of the samples precursor destruction and get the precursor information of coal samples instability destruction.
In order to obtain the precursor information of intense instability destruction of coal and rock mass which is induced by the deep mining,roadway excavation and face mining disturbance,according to the abnormal signal of coal samples would produce under external loads,which include elastic wave,charge,temperature signals,etc.,monitoring devices including acoustic emission instrument,LCR bridge,infrared thermograph and static strain devices are used to synchronously monitor the failure process under uniaxial compression.In order to study the multiparameter evolution characteristics,all data are selected in the same time axis.Meanwhile,principal component analysis and factor analysis in multivariate statistical analysis are used to analyze the original monitoring results of multiparameter;and the results show that acoustic emission and stress monitoring results could better reflect the characteristics of the samples precursor destruction and get the precursor information of coal samples instability destruction.
引文
[1]张茹,谢和平,刘建峰,等.单轴多级加载岩石破坏声发射特性试验研究[J].岩石力学与工程学报,2006,25(12):2584–2588.(ZHANG Ru,XIE Heping,LIU Jianfeng,et al.Experimental study ofacoustic emission characteristics of rock failure under uniaxialmultilevel loadings[J].Chinese Journal of Rock Mechanics andEngineering,2006,25(12):2 584–2 588.(in Chinese))
[2]谭云亮,王学水.煤矿坚硬顶板活动过程中声发射特征研究[J].岩石力学与工程学报,1992,11(3):211–217.(TAN Yunliang,WANGXueshui.A preliminary study of acoustic emission of rock during theroof weighting process in a coal mine[J].Chinese Journal of RockMechanics and Engineering,1992,11(3):211–217.(in Chinese))
[3]周小平,张永兴.大厂铜坑矿细脉带岩石结构面直剪试验中声发射特性研究[J].岩石力学与工程学报,2002,21(5):724–727.(ZHOUXiaoping,ZHANG Yongxing.Study on the property of acousticemission straight shearing test of rock joint in Dachang Tongkengmine[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(5):724–727.(in Chinese))
[4]吴立新,刘善军,吴育华,等.遥感–岩石力学(I)——非连续组合断层破裂的热红外辐射规律及其构造地震前兆意义[J].岩石力学与工程学报,2004,23(1):24–30.(WU Lixin,LIU Shanjun,WUYuhua,et al.Remote sensing-rock mechanics(I)—laws of thermalinfrared radiation from fracturing of discontinuous jointed faults andits meanings for tectonic earthquake omens[J].Chinese Journal ofRock Mechanics and Engineering,2004,23(1):24–30.(in Chinese))
[5]陈颙,黄廷芳,刘恩儒.岩石物理学[M].合肥:中国科学技术大学出版社,2009:239–243.(CHEN Yong,HUANG Tingfang,LIU Enru.Petrophysics[M].Hefei:University of Science and Technologyof China Press,2009:239–243.(in Chinese))
[6]ZHAO Y X,JIANG Y D.Acoustic emission and thermal infraredprecursors associated with bump-prone coal failure[J].InternationalJournal of Coal Geology,2010,83(1):11–20.
[7]姜耀东,赵毅鑫,刘文岗,等.煤岩冲击失稳的机制和试验研究[M].北京:科学出版社,2009:231–239.(JIANG Yaodong,ZHAO Yixin,LIU Wengang,et al.Investigation on the mechanism of coal bumpsand its experiment study[M].Beijing:Science Press,2009:231–239.(in Chinese))
[8]李俊平,周创兵.岩体的声发射特征试验研究[J].岩土力学,2004,25(3):374–378.(LI Junping,ZHOU Chuangbing.Experimentalresearch on acoustic emission characteristics of rock mass[J].Rockand Soil Mechanics,2004,25(3):374–378.(in Chinese))
[9]王宁,韩志型,王月明,等.评价岩体稳定性的声发射相对强弱指标[J].岩土工程学报,2005,27(2):190–192.(WANG Ning,HAN Zhixing,WANG Yueming,et al.Evaluating criterion of relativestrength-weakness characteristic based on acoustic emission parameters ofrock mass stability[J].Chinese Journal of Geotechnical Engineering,2005,27(2):190–192.(in Chinese))
[10]曹树刚,刘延保,张立强.突出煤体变形破坏声发射特征的综合分析[J].岩石力学与工程学报,2007,26(增1):2794–2799.(CAOShugang,LIU Yanbao,ZHANG Liqiang.Study on characteristics ofacoustic emission in outburst coal[J].Chinese Journal of Rock Mechanicsand Engineering,2007,26(Supp.1):2 794–2 799.(in Chinese))
[11]吴立新,刘善军,吴育华,等.遥感–岩石力学(IV)——岩石压剪破裂的热红外辐射规律及其地震前兆意义[J].岩石力学与工程学报,2004,23(4):539–544.(WU Lixin,LIU Shanjun,WU Yuhua,et al.Remote sensing-rock mechanics(IV)—laws of thermal infraredradiation from compressively-sheared fracturing of rock and itsmeanings for earthquake omens[J].Chinese Journal of Rock Mechanicsand Engineering,2004,23(4):539–544.(in Chinese))
[12]刘善军,吴立新,王川婴,等.遥感–岩石力学(VIII)——论岩石破裂的热红外前兆[J].岩石力学与工程学报,2004,23(10):1621–1 627.(LIU Shanjun,WU Lixin,WANG Chuanying,et al.Remotesensing-rock mechanics(VIII)—thermal infrared omens of rockfracturing[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(10):1 621–1 627.(in Chinese))
[13]朱建平.应用多元统计分析[M].北京:科学出版社,2006,93–130.(ZHU Jianping.Applied multivariate statistical analysis[M].Beijing:Science Press,2006:93–130.(in Chinese))
[14]姜耀东,吕玉凯,赵毅鑫,等.综采工作面过断层巷道稳定性多参量监测[J].煤炭学报,2011,36(10):1601–1606.(JIANG Yaodong,LU Yukai,ZHAO Yixin,et al.Multi-parameter monitoring the stabilityof rock around roadway while fully mechanized coal face passingthrough fault[J].Journal of China Coal Society,2011,36(10):1 601–1 606.(in Chinese))
[2]谭云亮,王学水.煤矿坚硬顶板活动过程中声发射特征研究[J].岩石力学与工程学报,1992,11(3):211–217.(TAN Yunliang,WANGXueshui.A preliminary study of acoustic emission of rock during theroof weighting process in a coal mine[J].Chinese Journal of RockMechanics and Engineering,1992,11(3):211–217.(in Chinese))
[3]周小平,张永兴.大厂铜坑矿细脉带岩石结构面直剪试验中声发射特性研究[J].岩石力学与工程学报,2002,21(5):724–727.(ZHOUXiaoping,ZHANG Yongxing.Study on the property of acousticemission straight shearing test of rock joint in Dachang Tongkengmine[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(5):724–727.(in Chinese))
[4]吴立新,刘善军,吴育华,等.遥感–岩石力学(I)——非连续组合断层破裂的热红外辐射规律及其构造地震前兆意义[J].岩石力学与工程学报,2004,23(1):24–30.(WU Lixin,LIU Shanjun,WUYuhua,et al.Remote sensing-rock mechanics(I)—laws of thermalinfrared radiation from fracturing of discontinuous jointed faults andits meanings for tectonic earthquake omens[J].Chinese Journal ofRock Mechanics and Engineering,2004,23(1):24–30.(in Chinese))
[5]陈颙,黄廷芳,刘恩儒.岩石物理学[M].合肥:中国科学技术大学出版社,2009:239–243.(CHEN Yong,HUANG Tingfang,LIU Enru.Petrophysics[M].Hefei:University of Science and Technologyof China Press,2009:239–243.(in Chinese))
[6]ZHAO Y X,JIANG Y D.Acoustic emission and thermal infraredprecursors associated with bump-prone coal failure[J].InternationalJournal of Coal Geology,2010,83(1):11–20.
[7]姜耀东,赵毅鑫,刘文岗,等.煤岩冲击失稳的机制和试验研究[M].北京:科学出版社,2009:231–239.(JIANG Yaodong,ZHAO Yixin,LIU Wengang,et al.Investigation on the mechanism of coal bumpsand its experiment study[M].Beijing:Science Press,2009:231–239.(in Chinese))
[8]李俊平,周创兵.岩体的声发射特征试验研究[J].岩土力学,2004,25(3):374–378.(LI Junping,ZHOU Chuangbing.Experimentalresearch on acoustic emission characteristics of rock mass[J].Rockand Soil Mechanics,2004,25(3):374–378.(in Chinese))
[9]王宁,韩志型,王月明,等.评价岩体稳定性的声发射相对强弱指标[J].岩土工程学报,2005,27(2):190–192.(WANG Ning,HAN Zhixing,WANG Yueming,et al.Evaluating criterion of relativestrength-weakness characteristic based on acoustic emission parameters ofrock mass stability[J].Chinese Journal of Geotechnical Engineering,2005,27(2):190–192.(in Chinese))
[10]曹树刚,刘延保,张立强.突出煤体变形破坏声发射特征的综合分析[J].岩石力学与工程学报,2007,26(增1):2794–2799.(CAOShugang,LIU Yanbao,ZHANG Liqiang.Study on characteristics ofacoustic emission in outburst coal[J].Chinese Journal of Rock Mechanicsand Engineering,2007,26(Supp.1):2 794–2 799.(in Chinese))
[11]吴立新,刘善军,吴育华,等.遥感–岩石力学(IV)——岩石压剪破裂的热红外辐射规律及其地震前兆意义[J].岩石力学与工程学报,2004,23(4):539–544.(WU Lixin,LIU Shanjun,WU Yuhua,et al.Remote sensing-rock mechanics(IV)—laws of thermal infraredradiation from compressively-sheared fracturing of rock and itsmeanings for earthquake omens[J].Chinese Journal of Rock Mechanicsand Engineering,2004,23(4):539–544.(in Chinese))
[12]刘善军,吴立新,王川婴,等.遥感–岩石力学(VIII)——论岩石破裂的热红外前兆[J].岩石力学与工程学报,2004,23(10):1621–1 627.(LIU Shanjun,WU Lixin,WANG Chuanying,et al.Remotesensing-rock mechanics(VIII)—thermal infrared omens of rockfracturing[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(10):1 621–1 627.(in Chinese))
[13]朱建平.应用多元统计分析[M].北京:科学出版社,2006,93–130.(ZHU Jianping.Applied multivariate statistical analysis[M].Beijing:Science Press,2006:93–130.(in Chinese))
[14]姜耀东,吕玉凯,赵毅鑫,等.综采工作面过断层巷道稳定性多参量监测[J].煤炭学报,2011,36(10):1601–1606.(JIANG Yaodong,LU Yukai,ZHAO Yixin,et al.Multi-parameter monitoring the stabilityof rock around roadway while fully mechanized coal face passingthrough fault[J].Journal of China Coal Society,2011,36(10):1 601–1 606.(in Chinese))
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心