| 岩石、岩体的动力强度与动力破坏准则 |
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| 引用本文： | 杨林德.岩石、岩体的动力强度与动力破坏准则[J].同济大学学报(自然科学版),2008,36(12). |
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| 作者姓名： | 杨林德 |
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| 作者单位： | 1. 解放军理工大学,工程兵工程学院,南京,210007
2. 北京建筑工程学院,土木交通学院,北京,100044 |
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| 基金项目： | 国家自然科学基金资助项目
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北京市自然科学基金及北京市教委联合资助项目
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| 摘 要： | 就岩石与岩体变形与破坏的时间特性进行了理论研究.研究了岩石及岩体的强度对于应变率的依赖关系及其机理,给出了考虑强度对于应变率依赖关系的莫尔库仑准则,确定了岩体的破坏尺寸与应变率之间的关系.讨论了若干时间性破坏准则,揭示了它们之间的内在联系.最后讨论了动力强度理论的应用.
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| 关 键 词： | 岩石与岩体 变形与破坏 时间因素 动力强度 破坏准则 |
| 收稿时间： | 2008/1/18 0:00:00 |
| 修稿时间： | 2008/1/18 0:00:00 |
Dynamic Strength and Dynamic Fracture Criteria of Rock and Rock Mass |
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| QIAN Qihu,QI Chengzhi.Dynamic Strength and Dynamic Fracture Criteria of Rock and Rock Mass[J].Journal of Tongji University(Natural Science),2008,36(12). |
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| Authors: | QIAN Qihu QI Chengzhi |
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| Institution: | QIAN Qihu1,QI Chengzhi2 |
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| Abstract: | The paper presents a theoretical study of the temporal features of deformation and fracture of rock and rock mass and an investigation of the strain rate dependence of strength and its mechanism.The paper also presents the Mohr-Coulomb constitutive relations with a consideration of strain rate dependence and the relationship between the size of blocks of fractured rock mass and the strain rate.Several temporal fracture criteria are discussed,and their intrinsic relationship is revealed.Finally,the application of dynamic strength theories is discussed. |
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| Keywords: | rock and rock mass deformation and fracture temporal factor dynamic strength criteria of fracture |
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