离散单元法在土壤机械特性动态仿真中的应用进展

简述了离散单元法的基本原理及其国内外发展现状，介绍了目前地面力学研究领域中离散单元法在土壤机械特性动态仿真中的应用情况，分析了离散单元法在土壤动态行为仿真中应用的可行性，指出离散单元法应用于土壤这样的多相不连续复合体系中，以离散单元的总体行为来描述土壤动态行为具有独特的优越性，提出了离散单元法在土壤动态特征研究中的发展趋势和近期需要解决的关键问题。

Development of simulation on mechanical dynamic behavior of soil by distinct element method

The development and basic theory of distinct element method(DEM) were introduced in brief. The details of application on simulating the mechanical dynamic behavior of soil by DEM in the research field of terramechanics were presented. The feasibility of the application of DEM to describe soil dynamic property was analyzed. The special priority of describing soil dynamic behavior using the whole theory of distinct elements in applying DEM to the discontinuous multiphase multiple system such as soil was pointed out. The trends of the development of DEM in the soil dynamic property and the key problems that may arise from its use in the near future were put forward.