Automatic Generation Method of Geological Cross-Sections in Dredging Engineering Based on 3D Solid NURBS Models

• Published in: Transactions of Tianjin University Vol. 18; no. 6; pp. 393 - 400
• Main Author: 缪正建 李明超 钟登华
• Format: Journal Article
• Language: English
• Published: Heidelberg Tianjin University 01.12.2012; State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China
• Subjects: BS模型; Engineering; Humanities and Social Sciences; Mechanical Engineering; multidisciplinary; Science; 三维实体; 基础; 工程地质; 横断面; 疏浚工程; 自动生成方法; 非均匀有理B样条; dredging engineering; automatic generation; 3D geological solid modeling; NURBS
• ISSN: 1006-4982; 1995-8196
• DOI: 10.1007/s12209-012-1793-7

An automatic generation method of geological cross-sections in dredging engineering based on 3D geo- logical solid models is presented. The 3D geological models are built applying the non-uniform rational B-splines （NURBS） technique, and a 2D profile can be calculated and generated automatically through Boolean operation to meet the demands of dredging projects. Moreover, an automatic marking method for geological attributes is put for- ward based on database technology, and the geological attributes include the profile name, scale, horizontal and verti- cal relative coordinates, geological lithology, and 2D standard lithology legend. At the same time, the automatic mark- ing method can also provide an interactive mode for geological engineers to edit and modify the profile in the model- ing system. Practical engineering applications show that the automatic generation method is a simple, flexible, fast and precise visual graphics rendering process that can create 2D standard profiles automatically and efficiently. This method also provides a convenient support tool for geological engineering digital analysis.