DDA数值方法及工程应用研究  

DDA method and its application to engineering

作　　者：周少怀 杨家岭[1] 

机构地区：[1]中国科学院武汉岩土力学研究所,湖北武汉430071

出　　处：《岩土力学》2000年第2期123-125,140,共4页Rock and Soil Mechanics

摘　　要：基于 DDA计算模型 ,补充和发展了 DDA计算程序 ,分析了边坡大位移问题和地下开挖引起地面变形的工程实例 ,并与离散元计算结果进行了比较研究。计算分析结果表明 ,该模型的计算结果基本符合实际 ,适合于不连续块体系统岩体的情况 。The computing program of DDA is expanded and developed based on DDA computation model in this paper. Large displacements of slope and surface deformation due to underground excavation are discussed using the DDA model with results compared with those from DEM. It is shown that the results are in accordance with those of DEM. All of the analysis proves that DDA can be effectively applied to large rock engineering.

关 键 词：DDA 边坡位移 地下开挖 地表变形 数值方法 

分 类 号：TU753.8[建筑科学—建筑技术科学] P642.22[天文地球—工程地质学]