热力耦合作用鲁灰花岗岩蠕变声发射规律
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摘要
研究3种试验条件(300℃轴压94 MPa围压75 MPa,400℃轴压125 MPa围压100 MPa,500℃轴压175 MPa围压125 MPa)下花岗岩体(200 mm×400 mm)的蠕变声发射规律。研究结果表明:(1)花岗岩300℃轴压94 MPa围压75 MPa蠕变试验,整个过程经历瞬态蠕变和稳态蠕变2个阶段,蠕变第一阶段声发射信号强于蠕变第二阶段声发射信号,稳态蠕变阶段声发射活动较弱,声发射频度稳定,强度逐渐降低;400℃轴压125 MPa围压100 MPa花岗岩蠕变试验只经历稳态蠕变阶段,蠕变声发射规律与300℃稳态蠕变阶段相似;500℃轴压175 MPa围压125MPa采集到的声发射信号微弱,无法说明蠕变过程中声发射规律。(2)高温高压蠕变试验中,随着温度升高,花岗岩内部发生不同程度塑性变形和局部塑性破坏,蠕变声发射信号减弱。
The creep acoustic emission rule of granite(200 mm×400 mm) was tested under three different temperatures,axial pressures and confining pressures.The research results are as follows:(1) Under the condition of 300 ℃,axial pressure of 94 MPa and confining pressure of 75 MPa,the creep process of granite experiences transient and steady creep states.The acoustic emission in transient creep state is stronger than that in steady creep state.The acoustic emission frequentness is more steady and the intensity decreases in steady creep state.Under the condition of 400 ℃,axial pressure of 125 MPa and confining pressure of 100 MPa,the creep process of granite only experiences steady creep state and the acoustic emission is similar with steady creep state in 300 ℃.Under the condition of 500 ℃,axial pressure of 175 MPa and confining pressure of 125 MPa,the acoustic emission signal is so weak that the acoustic emission rule in creep process can t be explained.(2) In the creep test with high temperature and high pressure,the acoustic emission signal becomes weak due to partial plastic deformation and partial plastic damage inside granite with the temperature increasing.
The creep acoustic emission rule of granite(200 mm×400 mm) was tested under three different temperatures,axial pressures and confining pressures.The research results are as follows:(1) Under the condition of 300 ℃,axial pressure of 94 MPa and confining pressure of 75 MPa,the creep process of granite experiences transient and steady creep states.The acoustic emission in transient creep state is stronger than that in steady creep state.The acoustic emission frequentness is more steady and the intensity decreases in steady creep state.Under the condition of 400 ℃,axial pressure of 125 MPa and confining pressure of 100 MPa,the creep process of granite only experiences steady creep state and the acoustic emission is similar with steady creep state in 300 ℃.Under the condition of 500 ℃,axial pressure of 175 MPa and confining pressure of 125 MPa,the acoustic emission signal is so weak that the acoustic emission rule in creep process can t be explained.(2) In the creep test with high temperature and high pressure,the acoustic emission signal becomes weak due to partial plastic deformation and partial plastic damage inside granite with the temperature increasing.
引文
[1]刘雄.岩石流变学概论[M].北京:地质出版社,1994:180–186.(LIU Xiong.An introduction to rock rheology[M].Beijing:GeologicalPublishing House,1994:180–186.(in Chinese))
[2]赵阳升,万志军,康建荣.高温岩体地热导论[M].北京:科学出版社,2004:130–173.(ZHAO Yangsheng,WAN Zhijun,KANGJianrong.An introduction to hot dry rock(HDR)geothermalexploitation[M].Beijing:Science Press,2004:130–173.(in Chinese))
[3]WEBSTER G A,COX A P D,DORN J E.A relationship betweentransient and steady-state creep at elevated temperature[J].MetalScience,1969,3(1):221–225.
[4]MARTIN R J,BOYD P J,NOEL J S.Creep in topopah spring memberwelded tuff.Yucca mountain site characterization project[R].Albuquerque,USA:Sandia National Labs,1995.
[5]PRAME N.High-temperature transient creep in olivine rocks[J].Tectonophysics,1997,279(1/2/3/4):93–111.
[6]DWIVEDI R D,GOEL R K,PRASAD V V,et al.Thermomechanicalproperties of Indian and other granites[J].International Journal ofRock Mechanics and Mining Sciences,2008,45(3):303–315.
[7]陈宗基,石泽全,于智海,等.用8000kN多功能三轴仪测量脆性岩石的扩容、蠕变及松弛[J].岩石力学与工程学报,1989,8(2):97–118.(TAN Tjongkie,SHI Zequan,YU Zhihai,et al.Dilatancy,creep and relaxation of brittle rocks measured with 8 000 kN multipurposetriaxial apparatus[J].Chinese Journal of Rock Mechanics and Engineering,1989,8(2):97–118.(in Chinese))
[8]王子潮,王绳祖.中下地壳温度压力条件下岩石半脆性蠕变的试验研究[J].地震地质,1990,12(4):335–342.(WANG Zichao,WANGShengzu.Experimental study on semi-brittle behavior of rocks attemperature and pressure corresponding to middle-lower crust[J].Seismology and Geology,1990,12(4):335–342.(in Chinese))
[9]YANG C H,DAEMEN J J K.Temperature effects on creep of tuff andits time-dependent damage analysis[J].International Journal of RockMechanics and Mining Sciences,1997,34(3/4):383–384.
[10]刘泉声,许锡昌,山口勉,等.三峡花岗岩与温度及时间相关的力学性质试验研究[J].岩石力学与工程学报,2001,20(5):715–719.(LIU Quansheng,XU Xichang,YAMAGUCHI T,et al.Testing studyon mechanical property of the Three Gorges granite concerningtemperature and time[J].Chinese Journal of Rock Mechanics andEngineering,2001,20(5):715–719.(in Chinese))
[11]赵阳升,郤保平,万志军,等.高温高压下花岗岩中钻孔变形失稳临界条件研究[J].岩石力学与工程学报,2009,28(5):865–874.(ZHAO Yangsheng,XI Baoping,WAN Zhijun,et al.Study of criticalcondition of borehole instability in granite under high temperature andhigh pressure[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(5):865–874.(in Chinese))
[12]郤保平,赵阳升,万志军,等.热力耦合作用下花岗岩流变模型的本构关系研究[J].岩石力学与工程学报,2009,28(5):956–967.(XIBaoping,ZHAO Yangsheng,WAN Zhijun,et al.Study of constitutiveequation of granite rheological model with thermo-mechanicalcoupling effects[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(5):956–967.(in Chinese))
[13]郤保平,赵阳升,万志军,等.高温静水应力状态花岗岩中钻孔围岩的流变试验研究[J].岩石力学与工程学报,2008,27(8):1659–1 666.(XI Baoping,ZHAO Yangsheng,WAN Zhijun,et al.Rheological experimental investigation on surrounding rock mass ofgranite under high temperature and hydrostatics stress[J].ChineseJournal of Rock Mechanics and Engineering,2008,27(8):1 659–1 666.(in Chinese))
[14]张宁,赵阳升,万志军,等.高温作用下花岗岩三轴蠕变特征的试验研究[J].岩土工程学报,2009,31(8):1309–1313.(ZHANGNing,ZHAO Yangsheng,WAN Zhijun,et al.Experimental study ontriaxial creep properties of granite under high temperature[J].ChineseJournal of Geotechnical Engineering,2009,31(8):1 309–1 313.(inChinese))
[15]张宁,赵阳升,万志军,等.高温三维应力下鲁灰花岗岩蠕变本构关系的研究[J].岩土工程学报,2009,31(11):1757–1762.(ZHANG Ning,ZHAO Yangsheng,WAN Zhijun,et al.Creepconstitutive relationship of gray granite in Shandong province underhigh temperature and three-dimensional stress[J].Chinese Journal ofGeotechnical Engineering,2009,31(11):1 757–1 762.(in Chinese))
[16]张宁,赵阳升,万志军,等.高温三维应力下花岗岩三维蠕变的模型研究[J].岩石力学与工程学报,2009,28(5):875–881.(ZHANG Ning,ZHAO Yangsheng,WAN Zhijun,et al.Model studyof three-dimensional granite creep properties under high temperature[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(5):875–881.(in Chinese))
[17]赵阳升,万志军,张渊,等.20MN伺服控制高温高压岩体三轴试验机的研制[J].岩石力学与工程学报,2008,27(1):1–8.(ZHAOYangsheng,WAN Zhijun,ZHANG Yuan,et al.Reserach anddevelopment of 20 MN servo-controlled rock triaxial testing systemwith high temperature and high pressure[J].Chinese Journal of RockMechanics and Engineering,2008,27(1):1–8.(in Chinese))
[18]纪洪广.混凝土材料声发射性能研究与应用[M].北京:煤炭工业出版社,2004:18–23.(JI Hongguang.Research on AE properties ofconcrete materials and its application[M].Beijing:China Coal IndustryPublishing House,2004:18–23.(in Chinese))
[19]武晋文,赵阳升,万志军,等.中高温三轴应力下鲁灰花岗岩热破裂声发射特征的试验研究[J].岩土力学,2009,30(11):3331–3336.(WU Jinwen,ZHAO Yangsheng,WAN Zhijun,et al.Experimentalstudy of acoustic emission characteristics of granite thermal crackingunder middle-hight temperature and triaxial stress[J].Rock and SoilMechanics,2009,30(11):3 331–3 336.(in Chinese))
[20]张渊,赵阳升,吴刚.“鲁灰”花岗岩热破裂的细观结构及规律[J].兰州理工大学学报,2010,36(6):115–118.(ZHANG Yuan,ZHAO Yangsheng,WU gang.Meso-structure and pattern of thermalcracking of gray granite in Shandong province[J].Journal of LanzhouUniversity of Technology,2010,36(6):115–118.(in Chinese))
[21]万志军,赵阳升,董付科,等.高温及三轴应力下花岗岩体力学特性的试验研究[J].岩石力学与工程学报,2008,27(1):72–77.(WAN Zhijun,ZHAO Yangsheng,DONG Fuke,et al.Experimentalstudy on mechanical characteristics of granite under high temperaturesand triaxial stresses[J].Chinese Journal of Rock Mechanics andEngineering,2008,27(1):72–77.(in Chinese))
[2]赵阳升,万志军,康建荣.高温岩体地热导论[M].北京:科学出版社,2004:130–173.(ZHAO Yangsheng,WAN Zhijun,KANGJianrong.An introduction to hot dry rock(HDR)geothermalexploitation[M].Beijing:Science Press,2004:130–173.(in Chinese))
[3]WEBSTER G A,COX A P D,DORN J E.A relationship betweentransient and steady-state creep at elevated temperature[J].MetalScience,1969,3(1):221–225.
[4]MARTIN R J,BOYD P J,NOEL J S.Creep in topopah spring memberwelded tuff.Yucca mountain site characterization project[R].Albuquerque,USA:Sandia National Labs,1995.
[5]PRAME N.High-temperature transient creep in olivine rocks[J].Tectonophysics,1997,279(1/2/3/4):93–111.
[6]DWIVEDI R D,GOEL R K,PRASAD V V,et al.Thermomechanicalproperties of Indian and other granites[J].International Journal ofRock Mechanics and Mining Sciences,2008,45(3):303–315.
[7]陈宗基,石泽全,于智海,等.用8000kN多功能三轴仪测量脆性岩石的扩容、蠕变及松弛[J].岩石力学与工程学报,1989,8(2):97–118.(TAN Tjongkie,SHI Zequan,YU Zhihai,et al.Dilatancy,creep and relaxation of brittle rocks measured with 8 000 kN multipurposetriaxial apparatus[J].Chinese Journal of Rock Mechanics and Engineering,1989,8(2):97–118.(in Chinese))
[8]王子潮,王绳祖.中下地壳温度压力条件下岩石半脆性蠕变的试验研究[J].地震地质,1990,12(4):335–342.(WANG Zichao,WANGShengzu.Experimental study on semi-brittle behavior of rocks attemperature and pressure corresponding to middle-lower crust[J].Seismology and Geology,1990,12(4):335–342.(in Chinese))
[9]YANG C H,DAEMEN J J K.Temperature effects on creep of tuff andits time-dependent damage analysis[J].International Journal of RockMechanics and Mining Sciences,1997,34(3/4):383–384.
[10]刘泉声,许锡昌,山口勉,等.三峡花岗岩与温度及时间相关的力学性质试验研究[J].岩石力学与工程学报,2001,20(5):715–719.(LIU Quansheng,XU Xichang,YAMAGUCHI T,et al.Testing studyon mechanical property of the Three Gorges granite concerningtemperature and time[J].Chinese Journal of Rock Mechanics andEngineering,2001,20(5):715–719.(in Chinese))
[11]赵阳升,郤保平,万志军,等.高温高压下花岗岩中钻孔变形失稳临界条件研究[J].岩石力学与工程学报,2009,28(5):865–874.(ZHAO Yangsheng,XI Baoping,WAN Zhijun,et al.Study of criticalcondition of borehole instability in granite under high temperature andhigh pressure[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(5):865–874.(in Chinese))
[12]郤保平,赵阳升,万志军,等.热力耦合作用下花岗岩流变模型的本构关系研究[J].岩石力学与工程学报,2009,28(5):956–967.(XIBaoping,ZHAO Yangsheng,WAN Zhijun,et al.Study of constitutiveequation of granite rheological model with thermo-mechanicalcoupling effects[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(5):956–967.(in Chinese))
[13]郤保平,赵阳升,万志军,等.高温静水应力状态花岗岩中钻孔围岩的流变试验研究[J].岩石力学与工程学报,2008,27(8):1659–1 666.(XI Baoping,ZHAO Yangsheng,WAN Zhijun,et al.Rheological experimental investigation on surrounding rock mass ofgranite under high temperature and hydrostatics stress[J].ChineseJournal of Rock Mechanics and Engineering,2008,27(8):1 659–1 666.(in Chinese))
[14]张宁,赵阳升,万志军,等.高温作用下花岗岩三轴蠕变特征的试验研究[J].岩土工程学报,2009,31(8):1309–1313.(ZHANGNing,ZHAO Yangsheng,WAN Zhijun,et al.Experimental study ontriaxial creep properties of granite under high temperature[J].ChineseJournal of Geotechnical Engineering,2009,31(8):1 309–1 313.(inChinese))
[15]张宁,赵阳升,万志军,等.高温三维应力下鲁灰花岗岩蠕变本构关系的研究[J].岩土工程学报,2009,31(11):1757–1762.(ZHANG Ning,ZHAO Yangsheng,WAN Zhijun,et al.Creepconstitutive relationship of gray granite in Shandong province underhigh temperature and three-dimensional stress[J].Chinese Journal ofGeotechnical Engineering,2009,31(11):1 757–1 762.(in Chinese))
[16]张宁,赵阳升,万志军,等.高温三维应力下花岗岩三维蠕变的模型研究[J].岩石力学与工程学报,2009,28(5):875–881.(ZHANG Ning,ZHAO Yangsheng,WAN Zhijun,et al.Model studyof three-dimensional granite creep properties under high temperature[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(5):875–881.(in Chinese))
[17]赵阳升,万志军,张渊,等.20MN伺服控制高温高压岩体三轴试验机的研制[J].岩石力学与工程学报,2008,27(1):1–8.(ZHAOYangsheng,WAN Zhijun,ZHANG Yuan,et al.Reserach anddevelopment of 20 MN servo-controlled rock triaxial testing systemwith high temperature and high pressure[J].Chinese Journal of RockMechanics and Engineering,2008,27(1):1–8.(in Chinese))
[18]纪洪广.混凝土材料声发射性能研究与应用[M].北京:煤炭工业出版社,2004:18–23.(JI Hongguang.Research on AE properties ofconcrete materials and its application[M].Beijing:China Coal IndustryPublishing House,2004:18–23.(in Chinese))
[19]武晋文,赵阳升,万志军,等.中高温三轴应力下鲁灰花岗岩热破裂声发射特征的试验研究[J].岩土力学,2009,30(11):3331–3336.(WU Jinwen,ZHAO Yangsheng,WAN Zhijun,et al.Experimentalstudy of acoustic emission characteristics of granite thermal crackingunder middle-hight temperature and triaxial stress[J].Rock and SoilMechanics,2009,30(11):3 331–3 336.(in Chinese))
[20]张渊,赵阳升,吴刚.“鲁灰”花岗岩热破裂的细观结构及规律[J].兰州理工大学学报,2010,36(6):115–118.(ZHANG Yuan,ZHAO Yangsheng,WU gang.Meso-structure and pattern of thermalcracking of gray granite in Shandong province[J].Journal of LanzhouUniversity of Technology,2010,36(6):115–118.(in Chinese))
[21]万志军,赵阳升,董付科,等.高温及三轴应力下花岗岩体力学特性的试验研究[J].岩石力学与工程学报,2008,27(1):72–77.(WAN Zhijun,ZHAO Yangsheng,DONG Fuke,et al.Experimentalstudy on mechanical characteristics of granite under high temperaturesand triaxial stresses[J].Chinese Journal of Rock Mechanics andEngineering,2008,27(1):72–77.(in Chinese))
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