岩石对冲击波的非线性动态响应
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摘要
对干燥、饱水、饱泵油大理岩和饱和砂岩进行了SHPB冲击压缩实验,得到了干燥岩石和饱和岩石的应力波衰减规律。在应力波传播过程中,其幅值有较大的衰减,干燥岩石的衰减最大,且孔隙度越大衰减越大,饱和岩石还存在较强的波弥散效应。在小于岩石屈服强度时,多次冲击加载下获得随冲击加载次数的增加,加载模量增大,残余应变减小的压实效应。这一结果可用于大型地震工程和防护工程的设计和建造。
Shock compression SHPB (split Hopkinson pressure bar) tests were carried out for dry, saturated with water and saturated with pumping oil marble and saturated sandstone, respectively, and stress wave attenuation rules of dry and saturated rock were obtained. During the stress wave propagation process, its amplitude attenuation is obvious; the attenuation of dry rock is the largest. The rocks with greater porosity have more obvious attenuation. Saturated rocks have rather intensive wave dispersion effect. When impact loading is smaller than rock yield strength, the results of multi-impact loading show that loading modulus increases and residual strain reduces along with the increase of impact loading number. These results can be used for the design and construction of large-scale earthquake engineering and protection engineering.
Shock compression SHPB (split Hopkinson pressure bar) tests were carried out for dry, saturated with water and saturated with pumping oil marble and saturated sandstone, respectively, and stress wave attenuation rules of dry and saturated rock were obtained. During the stress wave propagation process, its amplitude attenuation is obvious; the attenuation of dry rock is the largest. The rocks with greater porosity have more obvious attenuation. Saturated rocks have rather intensive wave dispersion effect. When impact loading is smaller than rock yield strength, the results of multi-impact loading show that loading modulus increases and residual strain reduces along with the increase of impact loading number. These results can be used for the design and construction of large-scale earthquake engineering and protection engineering.
引文
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[12]薛彦伟.基于PM空间模型的岩石细观非线性模型研究[D].合肥:中国科学技术大学,2005(XUE Yanwei.The meso nonlinear model studies of rock under the PM model[D].Master dissertation.Hefei:University of Science and Technology of China,2005(in Chinese))
[13]薛彦伟,席道瑛,徐松林.岩石非经典非线性频率效应的细观研究[J].岩石力学与工程学报,2005,24(增刊I):5020-5025(XUE Yanwei,XI Daoying,XUSonglin.The study of nonclassic nonlinear f requency effect s in meso scale in rock[J].Chinese Journal of Rock Mechanism and Engineering,2005,24(Suppl I):5020-5025(in Chinese))
[14]田和金,李玉,王爱华,等.岩石动力学实验及其在油田开发中的应用[J].岩石力学与工程学报,2000,19(增刊):889-894(TIAN Hejin,LI Dang,WANG Aihua,et al.Dynamic mechanics experi ment of rock andits applicationin development of oil field[J].Chinese Journal of Rock Mechanismand Engineering,2000,19(Suppl):889-894(in Chinese))
[15]席道瑛,郑永来,张涛.大理岩和砂岩动态本构研究[J].爆炸与冲击,1995,15(3):259-266(XI Daoying,ZHENG Yonglai,ZHANG Tao.The experi mental researchin dynamic constitutive laws of marble and shale[J].Explosion and Shock Waves,1995,15(3):259-266(in Chinese))
[16]席道瑛,郑永来,张涛.应力波在砂岩中的衰减[J].地震学报,1995,17(1):62-67(XI Daoying,ZHENG Yonglai,ZHANG Tao.The decay of st ress wave in t he red stone[J].Acta Seismologic Sinica,1995,17(1):62-67(in Chinese))
[2]MCKAVANAGH B,STACEY F D.Mechanical hysteresis in rocks at lowstrain amplitudes and seismic frequencies[J].Physics of the Earth and Planetary Interiors,1974,8(3):246-250.
[3]BAKULIN V N,PROTOSENYA A G.Nonlinear effects in travel of elastic waves through rocks[R].Moscow:USSR Academy of Sciences,1982:314-316.
[4]席道瑛,刘斌,田象燕.饱和岩石的各向异性及非线性黏弹性响应[J].地球物理学报,2002,45(1):101-111(XI Daoying,LI U Bin,TIAN Xiangyan.Anisotropy and nonlinear viscoelastic behavior of saturated rocks[J].Chinese Journal of Geophysics,2002,45(1):101-111(in Chinese))
[5]CARMELIET J,VAN DEN ABEELE K E A.Application of the Preisach-Mayergoyz space model to analyze moisture effects on the nonlinear elastic response of rock[J].Geophysical Research Letters,2002,29(7):1144-1147.
[6]VAN DEN ABEELE K EA,CARMELIETJ,JOHNSON P A,et al.Influence of water saturation onthe nonlinear elastic mesoscopic response in Earth materials and the i mplications to the mechanismof nonlinearity[J].Journal of Geophysical Research,2002,107(B6):2121-2131.
[7]TUTUNCU A N,PODIO A L,GREGORY A R,et al.Nonlinear viscoelastic behavior of sedi mentary rocks,Part I:Effect of frequency and strain amplitude[J].Geophysics,1998,63(1):189-194.
[8]杜赟,席道瑛,徐松林,等.岩石非线性细观响应中孔隙液体的影响[J].岩石力学与工程学报,2010,29(1):209-216(DU Yun,XI Daoying,XU Songlin,et al.Influences of pore fluid on nonlinear mesoscopic responses of rocks[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(1):209-216(in Chinese))
[9]席道瑛,易良坤,张程远.Biot理论的唯象修正对P波特性的影响[J].岩石力学与工程学报,2004,23(18):3162-3167(XI Daoying,YI Liangkun,ZHANG Chengyuan.Effect of phenomenological correction on P-wave for Biot’s theory[J].Chinese Journal of Rock mechanismand Engineering,2004,23(18):3162-3167(in Chinese))
[10]席道瑛,王鑫,陈运平.描写岩石非线性滞后和记忆的宏观模型[J].岩石力学与工程学报,2005,24(13):2212-2219(XI Daoying,WANG xin,CHEN Yunping.Macroscopic model of non2linear elastic hysteretic and memory[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(13):2212-2219(in Chinese))
[11]关晶波,王建祥,苏永红,等.滞后细观模型在岩石力学中的应用[J].力学进展,2004,34(3):349-359(GUAN Jingbo,WANG Jianxiang,SU Yonghong,et al.Application of a hysteretic meso-mechanical model in rock mechanics[J].Advances in Mechanics,2004,34(3):349-359(in Chinese))
[12]薛彦伟.基于PM空间模型的岩石细观非线性模型研究[D].合肥:中国科学技术大学,2005(XUE Yanwei.The meso nonlinear model studies of rock under the PM model[D].Master dissertation.Hefei:University of Science and Technology of China,2005(in Chinese))
[13]薛彦伟,席道瑛,徐松林.岩石非经典非线性频率效应的细观研究[J].岩石力学与工程学报,2005,24(增刊I):5020-5025(XUE Yanwei,XI Daoying,XUSonglin.The study of nonclassic nonlinear f requency effect s in meso scale in rock[J].Chinese Journal of Rock Mechanism and Engineering,2005,24(Suppl I):5020-5025(in Chinese))
[14]田和金,李玉,王爱华,等.岩石动力学实验及其在油田开发中的应用[J].岩石力学与工程学报,2000,19(增刊):889-894(TIAN Hejin,LI Dang,WANG Aihua,et al.Dynamic mechanics experi ment of rock andits applicationin development of oil field[J].Chinese Journal of Rock Mechanismand Engineering,2000,19(Suppl):889-894(in Chinese))
[15]席道瑛,郑永来,张涛.大理岩和砂岩动态本构研究[J].爆炸与冲击,1995,15(3):259-266(XI Daoying,ZHENG Yonglai,ZHANG Tao.The experi mental researchin dynamic constitutive laws of marble and shale[J].Explosion and Shock Waves,1995,15(3):259-266(in Chinese))
[16]席道瑛,郑永来,张涛.应力波在砂岩中的衰减[J].地震学报,1995,17(1):62-67(XI Daoying,ZHENG Yonglai,ZHANG Tao.The decay of st ress wave in t he red stone[J].Acta Seismologic Sinica,1995,17(1):62-67(in Chinese))
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