摘要
复杂地质特征给数值模拟的建模工作带来很大困难,针对该问题,提出并实现了岩体结构三维无缝建模方法。将直接法拓展到四面体网格剖分中,实现了基于岩体结构无缝模型的四面体优化剖分方法,从而为数值模拟提供既符合地质实际,又有较高网格质量的计算模型。利用该方法建立了某拱坝坝肩岩体三维地质模型,并进行四面体优化剖分。
It is difficult to build geological models for numerical simulation when meeting complex geological structures. In order to address this problem, a seamless modelling method for rock-mass structure is proposed and realized. A method for optimizing tetrahedral mesh generation based on the seamless geological model is also realized by developing direct method. Combining these two methods, a numerical model, which is coincident with geological realities and having optimizing mesh, can be built for numerical simulation. By using this method, a 3D geological model and its optimizing tetrahedral mesh are built for rock-mass on the bank of one dam.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2008年第10期2811-2816,共6页
Rock and Soil Mechanics
基金
国家自然科学基金项目(No.40602037)
关键词
岩体结构
无缝建模
四面体剖分
优化
rock-mass structure
seamless 3D modelling
tetrahedral mesh generation
optimization
