砂岩脆性破坏过程中声发射信息试验研究
|
摘要
对砂岩试样单轴刚性加载试验整个过程中声发射信息分析表明:砂岩在加载变形破坏过程中根据声发射信号特征可划分为压密、弹性、稳定破裂、非稳定破裂和峰后情况五个阶段.通过对稳定破裂和非稳定破裂分界点对应的临界点处的应力和应变值与峰值应力及其对应的应变比值分析发现,大部分应变比在74%与78%之间;应力比则相对应变比具有较大的离散性,均值在73%左右.上述研究,增进了对岩石破裂过程中声发射现象的认识,为相应岩石脆性破坏导致的地质灾害分析提供了新的研究思路.
It was analyzed the AE accumulation counts and emission of sandstone brittle failure with loading by uniaxial.From the relationship of AE and rock compression process under loading,it is classified five different deformation stages according AE,which are the density stage,the elastic stage,crack stable growth stage,crack unsteady growth stage and the damage stage.Combining the rock uniaxial compression results,it is shown that the strain ratio between the AE mutation of critical state to peaking state has a value range 74% and 78%,but the stress ratio has a larger discrete,which has a average value nearly to 73%.In this article,it is discussed the new method to analysis of instability for rock brittle failure based on AE.
It was analyzed the AE accumulation counts and emission of sandstone brittle failure with loading by uniaxial.From the relationship of AE and rock compression process under loading,it is classified five different deformation stages according AE,which are the density stage,the elastic stage,crack stable growth stage,crack unsteady growth stage and the damage stage.Combining the rock uniaxial compression results,it is shown that the strain ratio between the AE mutation of critical state to peaking state has a value range 74% and 78%,but the stress ratio has a larger discrete,which has a average value nearly to 73%.In this article,it is discussed the new method to analysis of instability for rock brittle failure based on AE.
引文
[1]刘维国,单钰铭,孟祥豪,等.石灰岩扩容过程中的物理参数实验研究[J].实验室研究与探索,2007,26(10):281-284.(Liu W G,Shan Y M,Meng X H,etal.The research on rock physics parameters in theprocess of Clacareous rock Dilatancy by triaxial com-pression[J].Research and Exploration in Laboratory,2007,26(10):281-284.(in Chinese))
[2]张晓春,杨挺青,缪协兴.岩石裂纹演化及其力学特性的研究进展[J].力学进展,1999,29(1):97-104.(Zhang X C,Yang T Q,Miao X X.The new adav-abces of cracks development and mechanical proper-ties of rock[J].Advacncea in Mechanics,1999,29(1):97-104.(in Chinese))
[3]刘维国,单钰铭,傅荣华.岩石扩容过程中的体积应变与超声横波速度[J].成都理工大学学报(自然科学版),2006,33(4):360-364.(Liu W G,Shan Y M,FuR H.A study on the relationship between the volu-metric strain and the ultrasonic S-wave velocities indilatancey of rocks[J].Journal of Chengdu Universityof Technology(Science&Technology Edition),2006,33(4):360-364.(in Chinese))
[4]Bieniawski Z T.Time-dependent behaviour of frac-tured rock[J].Rock Mechanics and Rock Engineer-ing,1970,2(3):123-127.
[5]秦四清,徐锡伟,胡平,等.孕震断层的多锁固段脆性破裂机制与地震预测新方法的探索[J].地球物理学报,2010,53(4):1001-1014.(Qin S Q,Xu X W,HuP,et al.Brittle failure mechanism of multiple lockedpatches in a seismogenic fault system and explorationon a new way foe earthquake prediction[J].ChinsesJournal of Geophysics,2010,53(4):1001-1014.(inChinese))
[6]秦四清,王媛媛,马平.崩滑灾害临界位移演化的指数律[J].岩石力学与工程学报,2010,29(15):873-880.(Qin S Q,Wang Y Y,Ma P.Expoential laws of criti-cal displacement evolution for landslides and ava-lanches[J].Chinese Journal of Rock Mechanics andEngineering,2010,29(15):873-880.(in Chinese))
[7]Blake W.Microseismic Applications for Mining aPractical Guide[R].U.S:Bureau of Mines,1982.
[8]腾山邦久.声发射(AE)技术的应用[M]./冯夏庭,译.北京:冶金工业出版社,1996.(Katsuyama K.Ap-plication of AE Techniques[M]./Feng X T,Transla-tor.Beijing:Metallurgy Industry Press,1996.(in Chi-nese))
[9]Lockner D.The role of acoustic emission in the studyof rock fracture[J].International Journal of Mechan-ics and Mining Sciences&Geomechanics Abstract,1982,30:883-900.
[10]Dai S T,Labuz J F.Damage and failure analysis ofbrittle materials by acoustic emission[J].Rock Me-chanics and Rock Engineering,2005,38(1):1-19.
[11]Ganne P,Vervoort A,Wevess M.Quantification ofpre-break brittle damage correlation between acousticemission and observed micro-fracture[J].Internation-al Journal of Mechanics&Mining Sciences,2007,44(5):720-729.
[12]Holcomb D J.General theory of kaiser Effect[J].In-ternational Journal of Mechanics and Mining Sciences&Geomechanics Abstract,1993,30(7):929-935.
[13]唐春安,乔河,徐小荷,等.矿柱破坏过程及其声发射规律的数值模拟[J].煤炭学报,1999,24(3):266-269.(Tang C A,Qiao H,Xu X H,et al.Numericalsimulation on pillar failure and associated acoustic e-missions[J].Journal of China Coal Society,1999,24(3):266-269.(in Chinese))
[14]Tang C A,Xu X H.Evolution and propagation of ma-terial defects and Kaiser effect function[J].Journal ofSeismological Research,1990,13(2):203-212.
[15]潘立友,杨慧珠.冲击地压前兆信息识别的扩容理论[J].岩石力学与工程学报,2004,23(s1):4528-4530.(Pan L Y,Yang H Z.Dilatancy theory for identifica-tion of premonitory information of rock burst[J].Chi-nese Journal of Rock Mechanics and Engineering,2004,23(s1):4528-4530.(in Chinese))
[16]高保彬.采动煤岩裂隙演化及其透气性能试验研究[D].北京:北京交通大学,2010.(Gao B B.Experi-mental Study Onevolution of Cracks and Permeabilityof Mining Coal[D].Beijing:Beijing Jiaotong Universi-ty,2010.(in Chinese))
[17]Eberhardt E.Identifying crack initiation and proaga-tion thresholds in brittle rock[J].Canadian Geotech-nical Journal,1998,35(2):222-223.
[18]Eberhardt E,Stead D,Stimpson B.Quantifying pro-gressive pre-peak brittle fracture damage in rock dur-ing unianial compression[J].International Jounal ofRock Mechanics and Mining Sciences,1999,36(3):361-380.
[19]李地元.高应力硬岩脆性板裂破坏和应变型岩爆机理研究[D].长沙:中南大学,2010.(Li Y D.Study onthe Brittle Spalling Fallure of Hard Rock and theMechanism of Strainburst under High In-situ Sresses[D].Changsha:Central South University,2010.(inChinese))
[20]黄书岭.高应力下脆性岩石的力学模型与工程应用研究[D].武汉:中国科学院武汉岩土力学研究所,2008.(Huang S L.Study on Mechanical Model ofBrittle Rock under High Stress Condition and Its En-gineering Applications[D].Wuhan:Rock and Soil Me-chanics Institute,2008.(in Chinese))
[21]Martin C D.The Strength of Massive Lac Du BonnetGranite around Underground Openings[D].The U-nited States:University of Manitoba,1993.
[22]胡云华.高应力下花岗岩力学特性试验及本构模型研究[D].武汉:中国科学院武汉岩土力学研究所,2008.(Hu Y H.Study on Mechanical Properties ofGranites under High Pressure Conditions and Its Con-stitve Models[D].Wuhan:Rock and Soil MechanicsInstitute,2008.(in Chinese))
[2]张晓春,杨挺青,缪协兴.岩石裂纹演化及其力学特性的研究进展[J].力学进展,1999,29(1):97-104.(Zhang X C,Yang T Q,Miao X X.The new adav-abces of cracks development and mechanical proper-ties of rock[J].Advacncea in Mechanics,1999,29(1):97-104.(in Chinese))
[3]刘维国,单钰铭,傅荣华.岩石扩容过程中的体积应变与超声横波速度[J].成都理工大学学报(自然科学版),2006,33(4):360-364.(Liu W G,Shan Y M,FuR H.A study on the relationship between the volu-metric strain and the ultrasonic S-wave velocities indilatancey of rocks[J].Journal of Chengdu Universityof Technology(Science&Technology Edition),2006,33(4):360-364.(in Chinese))
[4]Bieniawski Z T.Time-dependent behaviour of frac-tured rock[J].Rock Mechanics and Rock Engineer-ing,1970,2(3):123-127.
[5]秦四清,徐锡伟,胡平,等.孕震断层的多锁固段脆性破裂机制与地震预测新方法的探索[J].地球物理学报,2010,53(4):1001-1014.(Qin S Q,Xu X W,HuP,et al.Brittle failure mechanism of multiple lockedpatches in a seismogenic fault system and explorationon a new way foe earthquake prediction[J].ChinsesJournal of Geophysics,2010,53(4):1001-1014.(inChinese))
[6]秦四清,王媛媛,马平.崩滑灾害临界位移演化的指数律[J].岩石力学与工程学报,2010,29(15):873-880.(Qin S Q,Wang Y Y,Ma P.Expoential laws of criti-cal displacement evolution for landslides and ava-lanches[J].Chinese Journal of Rock Mechanics andEngineering,2010,29(15):873-880.(in Chinese))
[7]Blake W.Microseismic Applications for Mining aPractical Guide[R].U.S:Bureau of Mines,1982.
[8]腾山邦久.声发射(AE)技术的应用[M]./冯夏庭,译.北京:冶金工业出版社,1996.(Katsuyama K.Ap-plication of AE Techniques[M]./Feng X T,Transla-tor.Beijing:Metallurgy Industry Press,1996.(in Chi-nese))
[9]Lockner D.The role of acoustic emission in the studyof rock fracture[J].International Journal of Mechan-ics and Mining Sciences&Geomechanics Abstract,1982,30:883-900.
[10]Dai S T,Labuz J F.Damage and failure analysis ofbrittle materials by acoustic emission[J].Rock Me-chanics and Rock Engineering,2005,38(1):1-19.
[11]Ganne P,Vervoort A,Wevess M.Quantification ofpre-break brittle damage correlation between acousticemission and observed micro-fracture[J].Internation-al Journal of Mechanics&Mining Sciences,2007,44(5):720-729.
[12]Holcomb D J.General theory of kaiser Effect[J].In-ternational Journal of Mechanics and Mining Sciences&Geomechanics Abstract,1993,30(7):929-935.
[13]唐春安,乔河,徐小荷,等.矿柱破坏过程及其声发射规律的数值模拟[J].煤炭学报,1999,24(3):266-269.(Tang C A,Qiao H,Xu X H,et al.Numericalsimulation on pillar failure and associated acoustic e-missions[J].Journal of China Coal Society,1999,24(3):266-269.(in Chinese))
[14]Tang C A,Xu X H.Evolution and propagation of ma-terial defects and Kaiser effect function[J].Journal ofSeismological Research,1990,13(2):203-212.
[15]潘立友,杨慧珠.冲击地压前兆信息识别的扩容理论[J].岩石力学与工程学报,2004,23(s1):4528-4530.(Pan L Y,Yang H Z.Dilatancy theory for identifica-tion of premonitory information of rock burst[J].Chi-nese Journal of Rock Mechanics and Engineering,2004,23(s1):4528-4530.(in Chinese))
[16]高保彬.采动煤岩裂隙演化及其透气性能试验研究[D].北京:北京交通大学,2010.(Gao B B.Experi-mental Study Onevolution of Cracks and Permeabilityof Mining Coal[D].Beijing:Beijing Jiaotong Universi-ty,2010.(in Chinese))
[17]Eberhardt E.Identifying crack initiation and proaga-tion thresholds in brittle rock[J].Canadian Geotech-nical Journal,1998,35(2):222-223.
[18]Eberhardt E,Stead D,Stimpson B.Quantifying pro-gressive pre-peak brittle fracture damage in rock dur-ing unianial compression[J].International Jounal ofRock Mechanics and Mining Sciences,1999,36(3):361-380.
[19]李地元.高应力硬岩脆性板裂破坏和应变型岩爆机理研究[D].长沙:中南大学,2010.(Li Y D.Study onthe Brittle Spalling Fallure of Hard Rock and theMechanism of Strainburst under High In-situ Sresses[D].Changsha:Central South University,2010.(inChinese))
[20]黄书岭.高应力下脆性岩石的力学模型与工程应用研究[D].武汉:中国科学院武汉岩土力学研究所,2008.(Huang S L.Study on Mechanical Model ofBrittle Rock under High Stress Condition and Its En-gineering Applications[D].Wuhan:Rock and Soil Me-chanics Institute,2008.(in Chinese))
[21]Martin C D.The Strength of Massive Lac Du BonnetGranite around Underground Openings[D].The U-nited States:University of Manitoba,1993.
[22]胡云华.高应力下花岗岩力学特性试验及本构模型研究[D].武汉:中国科学院武汉岩土力学研究所,2008.(Hu Y H.Study on Mechanical Properties ofGranites under High Pressure Conditions and Its Con-stitve Models[D].Wuhan:Rock and Soil MechanicsInstitute,2008.(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