In this study, a discrete element model was developed for cemented soil mixtures using random irregular particle assembly having different micro bond intensities. Micro-scale model parameters were determined from macro properties obtained from laboratory compression test and calibrated based on the actual stress-strain behavior. Calibrated micro properties were used to simulate the indirect tension test of the mixtures. The simulations of DEM presented the defined distribution of tensile, compressive, and shear forces as well as microdamage at different stages of loading. It was found that the prediction of indirect tension test simulation agreed well with the actual stress-strain behavior of soil mixtures.

在这项研究中，使用具有不同微键强度的随机不规则颗粒组件，为水泥土混合物开发了离散元素模型。微观模型参数由实验室压缩测试获得的宏观特性确定，并根据实际应力应变行为进行了校准。校准的微观性能用于模拟混合物的间接拉伸测试。DEM的模拟显示了在加载的不同阶段拉伸，压缩和剪切力的定义分布以及微损伤。结果表明，间接拉伸试验模拟的预测与混合土的实际应力-应变行为吻合良好。