基于地质横剖面的隧道工程三维地质建模方法研究

为直观准确地表达地质与隧道工程之间的相互关系,对三维地质与隧道的建模方法进行研究。首先,提出一种基于地质横 剖面轮廓线的归一化三维地质体模型重构方法; 然后,以已建立的三维地质模型为基础,对基于隧道横断面的三维建模及隧道与 地质模型合并过程中的模型切割、分层进行研究; 最后,开发基于断面的三维隧道地质建模及可视化系统。通过建模实例显示: 采 用本文的方法能够取得良好的三维地质及隧道建模效果,直观展示隧道与地层间的相互关系,较为丰富地展现隧道的内部细节。

3D Geological Modeling of Tunnels Based on Geological Horizontal Cross-section

In order to express the relationship between geology and tunnel engineering directly and accurately, a 3D geology and tunnel modeling method is studied. Firstly, a normalized three-dimensional geological body model reconstruction method based on the geological horizontal cross-section is proposed. And then, the model cutting and stratification during the merging process of tunnel horizontal cross-section-based 3D modeling and the model of tunnel and geology are studied based on the established 3D geological model. Finally, a horizontal cross-section-based 3D tunnel geological modeling and visualization system is developed. The modeling example shows that the method mentioned above can achieve good 3D geology and tunnel modeling results, visually demonstrates the relationship between the tunnel and the strata, and shows the internal details of the tunnel.