摘要
本文在大型非线性有限元通用程序ADINA的基础上，进行了改进。修改了质量矩阵和重力载荷形成模块，使之能够模拟开挖与填筑过程中重力的变化；通过设置空气单元组以及修改非统性刚度矩阵形成和应力计算等模块，使之能够模拟开挖后不立即填筑而滞后一个或几个施工步骤再填筑的实际施工过程。修改后的ADINA－IM程序能够对开挖与填筑的全部施工过程进行三维数值模拟。
The ADINA program has been improved. Its some subprograms are modified in forming massmatrix and gravity load, so that the gravity changes during excavation and filling can be simulated. The construction processes of filling not following excavation immediately can be simulated by setting up air elementgroup. The modified ADINA-IM program can simulate whole construction processes of excavation and filling.
出处
《中国矿业》
北大核心
1998年第6期51-55,共5页
China Mining Magazine
基金
中国博士后科学基金
