离散单元法同拉格朗日元法及其在岩土力学中的应用

Discrete Element Method and Lagrangian Element Method and Their Applications in Geomechanics

离散单元法是一种适合于节理岩体的数值分析方法，拉格朗日元法则特别适用于解决大变形的问题。本文叙述了离散单元法和拉格朗日元法的基本原理以及有关参数的选择问题．文中还举出两种方法在岩土力学中的应用范围。

The discrete element method is a numerical method suitable for solving problems associated with jointed rock mass, while the Lagrangian element method is especially suitable for salving problems involving large strains. The fundamental principles of both the discrete and the Lagrangian element methods and the problems of choosing parameters are described in this paper. The application ranges of the methods in geomechanics are also discussed.