物质点法在边坡稳定性评价中的应用研究
发布时间：2018-10-19 16:05
【摘要】：边坡的稳定性评价应当不仅仅局限于边坡的初始失稳破坏评价,也应该包括边坡发生破坏后坡体形态的发展以及最终的平衡状态评价,因为它对于描述滑坡造成的危害更为直观。鉴于此,结合物质点方法开发过程中的一些最新进展进行简要介绍,包括隐式物质点方法、随机物质点方法以及考虑流 固全耦合的物质点方法,同时对其在不同工况下的边坡稳定性评价进行了应用与探讨,揭露了边坡相应工况下不同的破坏机制和模式,包括降雨引起的浅层破坏、斜长边坡的平动破坏以及黏土体常见的向上渐进式转动破坏等。研究结果表明,该方法可以稳定、高效地评价边坡的初始破坏以及诱发的众多次生破坏,直观深入地描述边坡的破坏机制以及评估破坏带来的风险。
[Abstract]:The evaluation of slope stability should not only be limited to the initial failure evaluation of slope, but also include the development of slope body shape after slope failure and the final equilibrium state evaluation. Because it is more intuitive to describe the hazards caused by landslides. In view of this, some recent developments in the development of the material point method are briefly introduced, including implicit material point method, stochastic material point method and material point method considering the full coupling of fluid and solid. At the same time, the application and discussion of slope stability evaluation under different working conditions are carried out, and the different failure mechanisms and modes of slope under corresponding working conditions are revealed, including shallow failure caused by rainfall. The translational failure of slanting slope and the common upward progressive rotational failure of clay. The results show that this method can be used to evaluate the initial failure and the induced secondary damage of the slope stably and efficiently. The failure mechanism of the slope can be described intuitively and the risk caused by the failure can be evaluated.
【作者单位】： 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室;
【基金】：国家自然科学基金创新群体资助项目(51621006) 中国科学院率先行动“百人计划”项目~~
【分类号】：TU43
，
本文编号：2281634
[Abstract]:The evaluation of slope stability should not only be limited to the initial failure evaluation of slope, but also include the development of slope body shape after slope failure and the final equilibrium state evaluation. Because it is more intuitive to describe the hazards caused by landslides. In view of this, some recent developments in the development of the material point method are briefly introduced, including implicit material point method, stochastic material point method and material point method considering the full coupling of fluid and solid. At the same time, the application and discussion of slope stability evaluation under different working conditions are carried out, and the different failure mechanisms and modes of slope under corresponding working conditions are revealed, including shallow failure caused by rainfall. The translational failure of slanting slope and the common upward progressive rotational failure of clay. The results show that this method can be used to evaluate the initial failure and the induced secondary damage of the slope stably and efficiently. The failure mechanism of the slope can be described intuitively and the risk caused by the failure can be evaluated.
【作者单位】： 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室;
【基金】：国家自然科学基金创新群体资助项目(51621006) 中国科学院率先行动“百人计划”项目~~
【分类号】：TU43
，
本文编号：2281634
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