| 云母石英片岩斜坡弯曲倾倒变形的理论分析 |
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| 引用本文： | 伍法权.云母石英片岩斜坡弯曲倾倒变形的理论分析[J].力学学报,1997,5(4):306-311. |
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| 作者姓名： | 伍法权 |
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| 作者单位： | 中国科学院地质研究所工程地质力学开放研究实验室,北京100029 |
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| 基金项目： | 中国科学院特别支持领域资金 |
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| 摘 要： | 片岩斜坡中弯曲倾倒变形是通过密集的片理上逐层剪切位移实现的。文中给出了瞬时变形终止时σ1与片理面法线夹角γ的理论公式。瞬时变形结束后, 由于片理面上剪应力作用, 将继续发生剪切蠕变。本文给出了γ随着时间t变化的公式。最后本文讨论了地下水压力在倾倒变形中的作用, 并在理论公式中考虑了这一因素。
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| 关 键 词： | 弯曲倾倒变形 瞬时变形 蠕变模型 地下水压力 |
| 收稿时间： | 1997-08-30 |
| 修稿时间： | 1997-10-05 |
THEORETICAL ANALYSIS OF BENDING AND TOPPLING DEFORMATION IN SLOPES OF MICA QUARTZ SCHIST |
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| Wu Faquan.THEORETICAL ANALYSIS OF BENDING AND TOPPLING DEFORMATION IN SLOPES OF MICA QUARTZ SCHIST[J].chinese journal of theoretical and applied mechanics,1997,5(4):306-311. |
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| Authors: | Wu Faquan |
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| Institution: | Institute of Geology, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | The bending and toppling deformation in slopes of mica quartz schist occurs due to shear displacement slice by slice of schist with concentrated schistosities. The paper gives a theoretical formula of angle γ between σ1and the normal to schistosity plane when the instantaneous deformation is finished. Since then, shear-creep will take place along the schistosities by the shearing stress acting on the plane. The formula of γ-t is given in the paper. At last, the effect of groundwater pressure on the bending and toppling deformation is also discussed and considered in the theoretical formulas. |
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| Keywords: | Bending and toppling deformation Instantaneous deformation Creep model Groundwater pressure |
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