基于钻孔信息的地层数据模型研究

为了建立城市三维数字地层信息管理系统 ,提出了一种适合工程地质和岩土工程学科特点的地层数据模型———基于钻孔信息的地层数据模型 .该模型采用了面向对象的方法 ,因此其数据结构的类层次关系、模型的构造过程等条理清晰 ,而且能与面向对象的编程语言有机结合 .同时 ,该模型借助于Delaunay三角网来构造二维和三维拓扑关系 ,大大简化了三维形体之间复杂的拓扑关系 ,而且借此可以处理地层数据模型中的断层等突变信息 .利用这一数据模型 ,可以较好地模拟三维地质实体的真实景观

Study on Ground Data Model Based on Drill Hole Information

In order to build 3D ground information management system,a 3D ground data model based on drill hole information is put forward,which is very compatible with geological engineering and geotechnical engineering.Taking advantage of the object oriented method,the model can not only express the class hierarchy clearly but also be integrated with object oriented programming(OOP).Besides,the Delaunay triangle network is adopted in the data model so as to construct and simplify 2D and 3D topological relationship.What's more,it can deal with some abrupt geological information effectively,such as faults,in the geological boby.By using this data model,3D geological bodies can be illustrated vividly.