岩石泊松比与内摩擦角的关系研究
|
摘要
在纯张破坏时的泊松比与内摩擦角关系式基础上,推导出纯剪破坏时的泊松比与内摩擦角关系式,定义由泊松比与内摩擦角确定的剪破坏、脆性剪破坏、塑性剪破坏与张破坏及流动变形破坏分布区域。根据试验数据分析,确立张剪破坏与剪张破坏的线性分界线,建立脆性剪破坏判别条件半经验关系式。据此关系式,进行泊松比与内摩擦角的互算、单试样抗剪强度的计算及岩石细观破坏类型的分区。与岩石三轴压缩试验资料进行对比分析,解释岩石试样破坏类型发生的力学机制。实例表明,用泊松比计算单试样抗剪强度的方法具有实用价值,而且利用岩石破坏类型分区图可辅助预测岩石可能的破坏方式与类型。
Based on relationship between Poisson′s ratio and angle of internal friction for pure tensile failure,the relationship between Poisson′s ratio and angle of internal friction for pure shear failure is deduced;the shear,brittle shear,plastic shear and tensile failures as well as creep deformation distribution zones are defined by Poisson′s ratio and angle of internal friction.Based on the analysis of test data,the linear boundary lines for tensile shear and shear tensile failures are determined;the semi-empirical formulae of brittle shear failure criteria are established.According to the semi-empirical formulae,Poisson′s ratio and angle of internal friction and shear strength of single rock specimen can be calculated easily;the mesoscopic failure modes of rock can be zoned.By comparing with the results of triaxial compression tests,the mechanisms for different rock failures are explained.The case study demonstrates that it is practical to use the Poisson′s ratio to calculate shear strength of single rock specimen.The classification of rock failure zones can be used in prediction of failure modes and failure types.
Based on relationship between Poisson′s ratio and angle of internal friction for pure tensile failure,the relationship between Poisson′s ratio and angle of internal friction for pure shear failure is deduced;the shear,brittle shear,plastic shear and tensile failures as well as creep deformation distribution zones are defined by Poisson′s ratio and angle of internal friction.Based on the analysis of test data,the linear boundary lines for tensile shear and shear tensile failures are determined;the semi-empirical formulae of brittle shear failure criteria are established.According to the semi-empirical formulae,Poisson′s ratio and angle of internal friction and shear strength of single rock specimen can be calculated easily;the mesoscopic failure modes of rock can be zoned.By comparing with the results of triaxial compression tests,the mechanisms for different rock failures are explained.The case study demonstrates that it is practical to use the Poisson′s ratio to calculate shear strength of single rock specimen.The classification of rock failure zones can be used in prediction of failure modes and failure types.
引文
[1]STAGG K G,ZIENKIEWICZ O C.工程实用岩石力学[M].成都地质学院工程地质教研室译.北京:地质出版社,1978.(STAGG K G,ZIENKIEWICZ O C.Rock mechanics in engineering practice[M].Translated by Department of Engineering Geology,Chengdu Geology Institute.Beijing:Geological Publishing House,1978.(in Chinese))
[2]孙广忠.岩体力学基础[M].北京:科学出版社,1983.(SUN Guangzhong.Fundamental rock mass mechanics[M].Beijing:Science Press,1983.(in Chinese))
[3]孙广忠.岩体结构力学[M].北京:科学出版社,1988.(Sun Guangzhong.Rock mass structure mechanics[M].Beijing:Science Press,1988.(in Chinese))
[4]林卓英,吴玉山,关玲琳.岩石在三轴压缩下脆-延性转化的研究[J].岩土力学,1992,13(2/3):45-53.(LIN Zhuoying,WU Yushan,GUAN Linglin.Research on the brittle-ductile transition property of rock under triaxial compression[J].Rock and Soil Mechanics,1992,13(2/3):45-53.(in Chinese))
[5]郭志.实用岩体力学[M].北京:地震出版社,1996.(GUO Zhi.Practical rock mass mechanics[M].Beijing:Seismological Press,1996.(in Chinese))
[6]VASARHELYI B.A possible method for estimating the poisson′s rate values of the rock masses[J].Acta Geodaetica et Geophysica Hungarica,2009,44(3):313-322.
[7]张年学,李守定,李晓.用岩块抗剪强度估算抗压与抗拉强度的方法[C]//第三届全国岩土与工程学术大会论文集.成都:四川科学技术出版社,2009:311-315.(ZHANG Nianxue,LI Shouding,LI Xiao.New method for estimating compressive and tensile strengths using the shear strength of a rock block[C]//Proceedings of the 3rd National Conference of Geo-Engineering.Chengdu:Sichun Science and Technology Press,2009:311-315.(in Chinese)
[8]GERCEK H.Poisson′s ratio values for rocks[J].International Journal of Rock Mechanics and Mining Sciences,2007,44(1):1-13.
[9]湖北省水文地质工程地质大队.长江三峡链子崖危岩体防治工程可行性研究方案比选阶段勘查试验报告[R].荆州:湖北省水文地质工程地质大队,1990.(Hydrogeology and Engineering Geology Team of Hubei Province.Survey testing report of feasibility assessment and site selection of Lianziya precipitous cliff body control project in the Three Gorges[R].Jingzhou:Hydrogeology and Engineering Geology Team of Hubei Province,1990.(in Chinese))
[10]中国地质大学(武汉),长江水利委员会综合勘测局.长江三峡水利枢纽库区奉节县白马小区迁建城镇新址工程地质论证报告[R].武汉:中国地质大学工程学院,1999.(China University of Geosciences(Wuhan),Comprehensive Survey Bureau of Changjiang Water Conservancy Commission.Engineering geology assessment report on relocation of Baima district of Fengjie town in the Three Gorges irrigation conservancy area[R].Wuhan:Faculty of Engineering,China University of Geosciences,1999.(in Chinese))
[11]周瑞光,凌荣华,成彬芳,等.差异流动变形破坏研究[J].工程地质学报,1997,5(1):59-64.(ZHOU Ruiguang,LING Ronghua,CHENG Binfang,et al.Investigation of differential creep deformation failure[J].Journal of Engineering Geology,1997,5(1):59-64.(in Chinese))
[12]谷德振.岩体工程地质力学[M].北京:科学出版社,1979.(GU Dezhen.Rock mass engineering geological mechanics[M].Beijing:Science Press,1979.(in Chinese))
[13]COATES D F.岩石力学原理[M].雷化南,陈俊彦,云庆夏,等译.北京:冶金工业出版社,1978.(COATES D F.Rock mechanics principles[M].Translated by LEI Hua′nan,CHEN Junyan,YUN Qingxia,et al.Beijing:China Metallurgical Industry Press,1978.(in Chinese))
[14]董兆祥.岩石裂隙扩展规律及其判据初步研究[C]//长春地质学院科学论文集工程地质专集.长春:[s.n.],1983:71-82.(DONG Zhaoxiang.Preliminary research of the extend law and criterion for the rock crack[C]//Proceedings of Changchun Geology College Science Symposium on Engineering Geology.Changchun:[s.n.],1983:71-82.(in Chinese))
[15]吕森鹏,陈卫忠,贾善坡,等.脆性岩石破坏实验研究[J].岩石力学与工程学报,2009,28(增1):2 772-2 777.(LU Senpeng,CHEN Weizhong,JIA Shanpo,et al.Experimental study on brittle rock failure[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(Supp.1):2 772-2 777.(in Chinese))
[16]中国科学院工程地质力学重点实验室.浙江遂昌金矿岩石力学特性研究[R].北京:中国科学院地质与地球物理所,2008.(Key Laboratory of Engineering Geomechanics,Institute of Geology and Geophysics,Chinese Academy of Sciences.Rock mechanics characteristic research of gold ore of Suichang in Zhejiang province[R].Beijing:Institute of Geology and Geophysics,2008.(in Chinese))
[17]北京科技大学矿业研究所,太原钢铁公司峨口铁矿.太钢峨口铁矿边坡稳定性研究报告(三):岩石物理力学性质室内试验报告[R].北京:北京科技大学矿业研究所,1990.(Institute of Mining,University of Science and Technology Beijing,Ekou Iron Mine of Taiyuan Steel and Iron Company.Research report on slope stability of open pit(3):the laboratory test report of rock physical and mechanical characteristics[R].Beijing:Mining Institute,University of Science and Technology Beijing,1990.
[18]DEHLER W,LABUZ J F.Stress path testing of an anisotropic sandstone[J].Journal of Geotechnical and Geoenvironmental Engineering,2007,133(1):116-119.
[2]孙广忠.岩体力学基础[M].北京:科学出版社,1983.(SUN Guangzhong.Fundamental rock mass mechanics[M].Beijing:Science Press,1983.(in Chinese))
[3]孙广忠.岩体结构力学[M].北京:科学出版社,1988.(Sun Guangzhong.Rock mass structure mechanics[M].Beijing:Science Press,1988.(in Chinese))
[4]林卓英,吴玉山,关玲琳.岩石在三轴压缩下脆-延性转化的研究[J].岩土力学,1992,13(2/3):45-53.(LIN Zhuoying,WU Yushan,GUAN Linglin.Research on the brittle-ductile transition property of rock under triaxial compression[J].Rock and Soil Mechanics,1992,13(2/3):45-53.(in Chinese))
[5]郭志.实用岩体力学[M].北京:地震出版社,1996.(GUO Zhi.Practical rock mass mechanics[M].Beijing:Seismological Press,1996.(in Chinese))
[6]VASARHELYI B.A possible method for estimating the poisson′s rate values of the rock masses[J].Acta Geodaetica et Geophysica Hungarica,2009,44(3):313-322.
[7]张年学,李守定,李晓.用岩块抗剪强度估算抗压与抗拉强度的方法[C]//第三届全国岩土与工程学术大会论文集.成都:四川科学技术出版社,2009:311-315.(ZHANG Nianxue,LI Shouding,LI Xiao.New method for estimating compressive and tensile strengths using the shear strength of a rock block[C]//Proceedings of the 3rd National Conference of Geo-Engineering.Chengdu:Sichun Science and Technology Press,2009:311-315.(in Chinese)
[8]GERCEK H.Poisson′s ratio values for rocks[J].International Journal of Rock Mechanics and Mining Sciences,2007,44(1):1-13.
[9]湖北省水文地质工程地质大队.长江三峡链子崖危岩体防治工程可行性研究方案比选阶段勘查试验报告[R].荆州:湖北省水文地质工程地质大队,1990.(Hydrogeology and Engineering Geology Team of Hubei Province.Survey testing report of feasibility assessment and site selection of Lianziya precipitous cliff body control project in the Three Gorges[R].Jingzhou:Hydrogeology and Engineering Geology Team of Hubei Province,1990.(in Chinese))
[10]中国地质大学(武汉),长江水利委员会综合勘测局.长江三峡水利枢纽库区奉节县白马小区迁建城镇新址工程地质论证报告[R].武汉:中国地质大学工程学院,1999.(China University of Geosciences(Wuhan),Comprehensive Survey Bureau of Changjiang Water Conservancy Commission.Engineering geology assessment report on relocation of Baima district of Fengjie town in the Three Gorges irrigation conservancy area[R].Wuhan:Faculty of Engineering,China University of Geosciences,1999.(in Chinese))
[11]周瑞光,凌荣华,成彬芳,等.差异流动变形破坏研究[J].工程地质学报,1997,5(1):59-64.(ZHOU Ruiguang,LING Ronghua,CHENG Binfang,et al.Investigation of differential creep deformation failure[J].Journal of Engineering Geology,1997,5(1):59-64.(in Chinese))
[12]谷德振.岩体工程地质力学[M].北京:科学出版社,1979.(GU Dezhen.Rock mass engineering geological mechanics[M].Beijing:Science Press,1979.(in Chinese))
[13]COATES D F.岩石力学原理[M].雷化南,陈俊彦,云庆夏,等译.北京:冶金工业出版社,1978.(COATES D F.Rock mechanics principles[M].Translated by LEI Hua′nan,CHEN Junyan,YUN Qingxia,et al.Beijing:China Metallurgical Industry Press,1978.(in Chinese))
[14]董兆祥.岩石裂隙扩展规律及其判据初步研究[C]//长春地质学院科学论文集工程地质专集.长春:[s.n.],1983:71-82.(DONG Zhaoxiang.Preliminary research of the extend law and criterion for the rock crack[C]//Proceedings of Changchun Geology College Science Symposium on Engineering Geology.Changchun:[s.n.],1983:71-82.(in Chinese))
[15]吕森鹏,陈卫忠,贾善坡,等.脆性岩石破坏实验研究[J].岩石力学与工程学报,2009,28(增1):2 772-2 777.(LU Senpeng,CHEN Weizhong,JIA Shanpo,et al.Experimental study on brittle rock failure[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(Supp.1):2 772-2 777.(in Chinese))
[16]中国科学院工程地质力学重点实验室.浙江遂昌金矿岩石力学特性研究[R].北京:中国科学院地质与地球物理所,2008.(Key Laboratory of Engineering Geomechanics,Institute of Geology and Geophysics,Chinese Academy of Sciences.Rock mechanics characteristic research of gold ore of Suichang in Zhejiang province[R].Beijing:Institute of Geology and Geophysics,2008.(in Chinese))
[17]北京科技大学矿业研究所,太原钢铁公司峨口铁矿.太钢峨口铁矿边坡稳定性研究报告(三):岩石物理力学性质室内试验报告[R].北京:北京科技大学矿业研究所,1990.(Institute of Mining,University of Science and Technology Beijing,Ekou Iron Mine of Taiyuan Steel and Iron Company.Research report on slope stability of open pit(3):the laboratory test report of rock physical and mechanical characteristics[R].Beijing:Mining Institute,University of Science and Technology Beijing,1990.
[18]DEHLER W,LABUZ J F.Stress path testing of an anisotropic sandstone[J].Journal of Geotechnical and Geoenvironmental Engineering,2007,133(1):116-119.
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