| 岩石中断裂力学的研究 |
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| 引用本文： | 苗春波,何俊.岩石中断裂力学的研究[J].山西建筑,2014(3):83-85. |
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| 作者姓名： | 苗春波 何俊 |
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| 作者单位： | 重庆交通大学土木建筑学院,重庆400074 |
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| 摘 要： | 在断裂力学的基础上,研究了岩石破坏类型和受压裂缝的扩展,并对微裂缝演化进行了探讨,提出利用断裂力学中的裂纹尖端应力和应变场的分布情况,可以预测和制止岩体的失稳。基于能量平衡建立岩石裂纹的扩展条件,进而导出断裂稳定性准则。指出岩石断裂力学中存在的一些问题,并对研究要点进行了总结,为岩石断裂问题研究提供了理论依据。
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| 关 键 词： | 断裂力学 裂缝 岩石裂缝 能量平衡 |
Study of fracture mechanics in rock |
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| MIAO Chun-bo,HE Jun.Study of fracture mechanics in rock[J].Shanxi Architecture,2014(3):83-85. |
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| Authors: | MIAO Chun-bo HE Jun |
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| Affiliation: | ( College of Civil Engineering and Construction, Chongqing University, Chongqing 400074, China) |
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| Abstract: | On the basis of fracture mechanics, study of rock damage type and compression crack extension, and approach to the evolution of micro-crack. These can be forecast and stop rock failure by the distribution of the stress and strain extreme values near the crack tips according to the theory of fracture mechanics. The extension condition of rock-crack is builded based on energy balance, and the criterion of stability about fracture is exported. Some problems that exist in the rock fracture mechanics is pointed out, and research key points are summarized, provide theoretical basis for the research on rock fractm-e problems. |
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| Keywords: | fracture mechanics crack rock crack energy balance |
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