| 边坡岩体滑动稳定的动力学分析 |
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| 引用本文： | 王思敬,张菊明.边坡岩体滑动稳定的动力学分析[J].地质科学,1982,0(2):162-170. |
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| 作者姓名： | 王思敬 张菊明 |
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| 作者单位： | 中国科学院地质研究所 |
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| 摘 要： | 在地震或爆破等强烈振动影响下边坡岩体往往产生块体滑动。这种失稳的动力学特性迄今尚未获得应有的研究。 在大部分现有的文献中都采用惯性力原理,将动力问题化为静力问题解决。这种常规的准动态分析,只考虑最大振动加速度,使问题过于简化而偏于保守。少数文献中探讨了动力问题,但也未考虑动荷载的全波形,所以未能解决块体滑动的真正的动力学问题。
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| 关 键 词： | , |
ON THE DYNAMIC STABILITY OF BLOCK SLIDING ON ROCK SLOPES |
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| Wang Sijing,Zhang Juming.ON THE DYNAMIC STABILITY OF BLOCK SLIDING ON ROCK SLOPES[J].Chinese Journal of Geology,1982,0(2):162-170. |
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| Authors: | Wang Sijing Zhang Juming |
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| Institution: | Institute of Geology, Academia Sinica, Beijing |
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| Abstract: | This paper deals with the dynamic analysis of block sliding on rock slope along structure surfaces,such as joints,bedding planes and faults.The results obtained in the shaking tests show that the dynamic friction along a sliding surface is dependent on the velocity of relative motion,and can be determined by using the method proposed in this work.On the basis of our experiments,a differential equation can be given for describing the process of block instability on rock slope.The integration of the dynamic equation by numerical method provides a basis for evaluating slope stability in terms of critical displacement and dynamic instability.A computer program is compiled for this purpose and its capability is illustrated by some selected examples. |
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