论文标题
通过持续同源性，土壤颗粒在坡度中的应力链分析
Stress chain analysis of soil particles in slope via persistent homology
论文作者
论文摘要
通过粒子离散元素方法和持续的同源性研究了斜率的宏观响应与力链网络的宏观结构之间的关系。使用粒子分离元件方法在金属板的连续向下作用下，使用粒子积累模型模拟斜率的不稳定性过程。研究了宏观响应，例如二维斜率沉积物的总速度矢量，斜率不稳定时的裂纹表面的角度以及斜率y方向的平均速度。然后，构建了坡度堆叠颗粒自然积累的正常力链网络模型。最后，通过持续的同源方法分析斜率顶部粒子接触力链网络的拓扑特性以获得条形码。最后，建立了不稳定性进化与持续同源性特征之间的关系。这项研究为研究斜率不稳定性拓扑识别提供了一种新方法。因此，可以有效地预测斜坡的不稳定性破坏。
The relationship between the macroscopic response of the slope and the macrostructure of the force chain network under the action of the metal plate was studied by the particle discrete element method and the persistent homology. The particle accumulation model was used to simulate the instability process of slope under the continuous downward action of metal plate by the particle discrete element method. The macroscopic responses such as the total velocity vector of the two-dimensional slope deposit, the angle of the slip cracking surface when the slope is unstable, and the average velocity in the y-direction of the slope were studied. Then, the normal force chain undirected network model of the natural accumulation of slope stacking particles was constructed. Finally, the topological characteristics of the particle contact force chain network of the slope top were analyzed by the persistent homology method to obtain the barcode. Finally, the relationship between the instability evolution and the characteristics of persistent homology is established. This research provides a new method for the study of slope instability topology identification. Thus, the instability destruction of slope can be predicted effectively.
