三维地质体实体建模技术及其在工程中的应用

三维地质实体模型的建立对于工程设计和决策具有十分重要的意义。由于其几何形态的复杂性，这也是三维地学信息可视化的一个难点．在详细介绍了在建模过程中经常需要解决的主要技术难点，包括TIN不规则三角网结构、线性八叉树码、三维图形消隐技术和交互切割技术。最后结合实际工程实例，建立了某矿的地形表面模型、主要岩层模型和矿体模型，并在上程设计、支护方案决策、采掘计划编制中得到了很好的应用。

3D Geological Solid Modeling Technology and Its Application in Engineering

Three - dimensional geological solid modeling is of great importance to engineering design and decision - making. Its complexity of geometric shape is a difficulty in the visualization of 3D geological information. The main technical difficulties that need to be surmounted in the process of creating a solid model include triangulated irregular network, linear octree, 3D hidden technology and interactive cutting technology. Finally, the digitalized terrain model, major rock mass model and orebody model for a mine were established by using its practical data, which has found good application in the engineering design, decision -making for the support and the mine extraction -development scheduling.