| 巷道围岩渐进破坏的粘弹塑性软化分析 |
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| 引用本文： | 陈进
,袁文伯.巷道围岩渐进破坏的粘弹塑性软化分析[J].中国矿业大学学报,1988(3). |
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| 作者姓名： | 陈进 袁文伯 |
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| 摘 要： | 本文以岩石的变形与破坏特性为依据,提出了岩石渐进破坏的线性粘弹塑性软化模型;给出了综合考虑岩体蠕变、软化和膨胀特性的围岩性态解答。理论分析说明,巷道围岩的渐进破坏主要是岩体强度衰减和蠕变性质影响的结果。合理的支护设计应优先考虑到岩石内加固方法与外支撑方法的联合支护形式。
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| 关 键 词： | 粘弹塑性分析 破坏 围岩 巷道 |
A Viscoelastic Plastic Analysis of Progressive Failure of the Surrounding Rock of Opening |
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| Chen Jin Yuan Wenbo.A Viscoelastic Plastic Analysis of Progressive Failure of the Surrounding Rock of Opening[J].Journal of China University of Mining & Technology,1988(3). |
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| Authors: | Chen Jin Yuan Wenbo |
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| Affiliation: | Chen Jin Yuan Wenbo |
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| Abstract: | Based on the deformation and failure behaviour of rock, a viscoelastic-plastic (including softening and dilation) model is developed in this paper. An analytic formula is given to evaluate the effects of creep, softening and dilation of rock on the stability of underground opening. Theoretical analysis shows that the progressive failure of the surrounding rock of opening is mainly caused by strength attenuation and creep mass. Some suggestions are presented to improve the maintenance and support of underground opening. |
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| Keywords: | viscoelastic-plastic analysis failure surrounding rock opening |
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