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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。
The evaluation of slope stability should not only be limited to the evaluation of initial failure of slope failure, but also include the development of slope morphology after failure of the slope and the final evaluation of the equilibrium state because it is more harmful to describe the landslide Intuitive. In view of this, some new progresses in the process of material point method development are briefly introduced, including implicit material point method, random material point method and material point method considering flow-solid coupling, and at the same time, The slope stability evaluation is applied and discussed, revealing different failure mechanisms and modes under the corresponding slope conditions, including shallow damage caused by rainfall, translational failure of inclined slope and the common upward gradual Rotary destruction and so on. The results show that this method can evaluate the initial failure of the slope and the numerous secondary damage induced by the slope stably and efficiently, describe the failure mechanism of the slope visually and assess the risk caused by the failure.