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地层信息
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  strata information
    3D STRATA INFORMATION SYSTEM AND ITS FUNCTION OF MECHANICS ANALYSIS
    三维地层信息系统及其力学分析功能研究
短句来源
    STUDY ON INTEGRATION OF 3D STRATA INFORMATION SYSTEM AND FEM
    三维地层信息系统与有限元方法集成研究
短句来源
    3. Through the study on the three dimensional modeling and assistant analysis of slope site, the slope models are created including of strata information model, construction excavation modes, three dimensional cave model, faults, underground water distribution face, typical monitoring facilities and construction measures.
    3、开展了边坡三维场景的数字建模与分析研究,建立了包括边坡地层信息、施工开挖、三维洞室、断层、水位分布、典型监测设施和工程措施的边坡场址真三维模型。 提出了边坡三维模型的空间自适应地层生成算法,以及基于地层信息的三维洞室仿真方法。
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  strata information
Qualitative strata information is provided by our StratiGraph tool.
      
Others require the right hand side variables and/or the strata information as well.
      


Three-dimensional strata information system(3DSIS) is a system for storing,managing,checking, manipulating and displaying data which are spatially referenced to the underground strata. But the grids for visualization in 3DSIS are triangular prisms and can’t be directly used in finite element method. Based on the principle of mesh generation in FEM,the reasons are given that the visualization grids in 3DSIS can’t be used in FEM. A local-whole(L-W) model which is suited to 3D visualization and FEM is put forward....

Three-dimensional strata information system(3DSIS) is a system for storing,managing,checking, manipulating and displaying data which are spatially referenced to the underground strata. But the grids for visualization in 3DSIS are triangular prisms and can’t be directly used in finite element method. Based on the principle of mesh generation in FEM,the reasons are given that the visualization grids in 3DSIS can’t be used in FEM. A local-whole(L-W) model which is suited to 3D visualization and FEM is put forward. Using the L-W model,the grids are easily changed into the meshes of FEM. The key points that control the stratum shape are obtained by the topological analysis,and then lines and areas are defined,and solid model features are generated from the bottom up,and then new grids are regenerated. An integration system of 3DSIS and FEM is developed by the method of mixed-language programming using FORTRAN and Visual C++. And at last,the application of the integration model is given.

通过分析三维地层信息系统中的地层可视化网格和地下工程中有限元网格划分的主要原则及方法,阐明了三维地层信息系统中可视化网格不能直接用来作有限元分析的原因。提出了适于三维可视化和有限元分析的 L-W 拓扑模型。利用 FORTRAN 和 Viusal C++混合编程的方法使两者集成于一个统一的系统中,并给出了一个应用实例。

The three-dimensional visualization technology is widely used for its vivid regeneration of the real ground configuration from the investigated ground information and its proper description of the spatial relationships of structural elements.In this paper a 3D geo-body visualization method with the basic body elements of triangular prisms is introduced.The model is constructed with virtual drilling information through the self-decomposition of triangles and sufficiently considering the geological structures...

The three-dimensional visualization technology is widely used for its vivid regeneration of the real ground configuration from the investigated ground information and its proper description of the spatial relationships of structural elements.In this paper a 3D geo-body visualization method with the basic body elements of triangular prisms is introduced.The model is constructed with virtual drilling information through the self-decomposition of triangles and sufficiently considering the geological structures like faults in the geological body.The internal information of the geological body is displayed through the technique of self-decomposition.Finally,real drilling data is input to verify the model and the result indicates it is feasible.

三维可视化技术能形象表达地层信息的真实形态及构造要素的空间关系而应用广泛,建立了一种以三棱柱体作为基本体元来实现三维地质体可视化的方法,该方法通过对三角形的自分解并且充分考虑地质体内所存在的断层等地质现象,在引入虚拟钻孔的基础上,建立三维模型,该模型通过自分解而实现地质体内部信息的显示,最后用实际资料进行了验证。

 
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