基于三维地质模型的工程岩体结构精细数值建模

REFINED MODELING FOR NUMERICAL SIMULATION OF ENGINEERING ROCK MASS STRUCTURES BASED ON 3D GEOLOGICAL MODEL

针对岩体结构数值模拟分析前处理工作中存在的地质模型建立、空间单元划分等难点,提出将三维地质模型与数值模拟分析进行耦合来简化其前处理的具体思路和方法。在三维地质建模系统中,建立精细的工程地质三维统一模型,通过单元网格几何模型的自动生成和模型数据的转换输入,可快速、准确地为岩体结构数值模拟分析提供不同类别、信息丰富的精细三维网格剖分模型,不仅简化了数值计算分析的前处理工作,同时也可丰富三维地质模型的属性信息,为工程设计与优化提供更直观、便捷的信息平台。

Aiming at the difficulties of geological modelling and space unit division in pre-processing of numerical simulation analysis for engineering rock-mass structures, the coupling pattern and method of 3D geological model with numerical simulation are put forward to simplify the pre-processing. The refined 3D engineering geological integrated model was built by the 3D geological modelling system in the research area. Then, the element mesh model could be generated automatically. Subsequently, the model data were converted and imported to numerical simulation programs： and it offered different kinds of 3D mesh division models with abundant information. It can not only simplify the pre-processing of numerical computation and analysis, but also is abounding with the attributive information of 3D geological models. And it will offer a visual and convenient information platform for engineering design and optimization.