| 岩石材料变形稳定性的非线性分析 |
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| 引用本文： | 李厚恩,孙强,朱志刚,何维彬,冶小平. 岩石材料变形稳定性的非线性分析[J]. 金属矿山, 2009, 39(4): 16 |
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| 作者姓名： | 李厚恩 孙强 朱志刚 何维彬 冶小平 |
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| 作者单位： | 1.北京市勘察设计研究院有限公司；2.中国科学院地质与地球物理研究所；3.北京市路政局门头沟公路分局 |
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| 基金项目： | 国家科技部科技支撑计划项目 |
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| 摘 要： | 通过强度准则和非线性突变理论研究了岩石试验系统的变形稳定性问题，岩石的变形稳定取决于环境刚度和岩石本身的等效刚度，岩石的破坏失稳发生本构曲线峰值过后的某个位置。增大环境刚度有利于系统的稳定性，刚性加载一般不会导致强烈的失稳破坏，由尖点突变模型和强度准则求得了试验系统失稳位置所对应的变形值的表达式。
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| 关 键 词： | 岩石力学 失稳准则 本构模型 稳定性 突变 环境刚度 |
Analysis of Rock Deformation Stability |
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| Li Houen,Sun Qiang,Zhu Zhigang,He Weibin,Ye Xiaoping. Analysis of Rock Deformation Stability[J]. Metal Mine, 2009, 39(4): 16 |
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| Authors: | Li Houen Sun Qiang Zhu Zhigang He Weibin Ye Xiaoping |
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| Affiliation: | 1.BGI Engineering Consultants Co.,Ltd；2.Institute of Geology and Geophysics, Chinese Academy of Sciences；3.Beijing Road Political Bureau Mentougou Road Sub-bureau |
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| Abstract: | The deformation stability of rock test system is studied based on rigidity criterion and nonlinear catastrophe theory.The rock deformation stability is dependent on the environment rigidity and the equivalent rigidity of rock.The rock instability occurs at a position after the peak value in the constitutive curve.An increase in the environment rigidity will be beneficial to the system stability and rigid loading will generally not lead to a strong instability-caused destruction.The formula for the deformation value corresponding to the instability position of the test system is found based on the cusp catastrophe model and rigidity criterion. |
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