摘要
用计算机模拟隧道开挖,以实现对隧道工程地下岩体的地质特征及其地层结构的分布规律的了解,是目前研究的重要手段。多变形裁剪算法是虚拟隧道开挖建模过程中的一个重要算法。实现一种改进的多边形裁剪算法,简化虚拟隧道开挖中的三维地质模型空间裁剪。该方法在铁路隧道工程的虚拟开挖实际中取得良好效果,为决策隧道施工建设提供科学依据。
Simulating the tunnel excavation by computer to know the geologic features of the underground rock and the distribution of the stratal configuration of the tunnel project was an important way of research at present. Polygon clipping was a significant arithmetic in the model building of virtual tunnel excavation. It was actualized an improved polygon clipping which predigested the three-dimensional clipping in the virtual tunnel excavation. The method was used in a real tunnel excavation project and had achieved good results.
出处
《铁路计算机应用》
2008年第12期26-29,共4页
Railway Computer Application
基金
成都理工大学国家专业实验室开放基金(GI2004-07)
关键词
虚拟隧道开挖
多边形裁剪
隧道施工
应用
virtual tunnel excavation
polygon clipping
tunnel excavation
application
