基于三维地质模型的TBM施工动态可视化仿真

针对TBM施工涉及因素众多、地质条件复杂的特点,提出将三维地质建模技术引入施工仿真,对基于三维地质模型的长隧洞TBM施工进行动态可视化仿真研究.构建了TBM施工区域三维地质模型;全面考虑地质因素的影响,按照不同岩性条件选取参数并建立仿真模型,进行隧洞TBM施工过程仿真分析;根据仿真成果将施工信息与三维动态面貌进行耦合,实现基于三维地质模型的TBM施工过程动态可视化.实例分析表明,该方法改变了仿真结果传统的表现模式,为全面地掌握长隧洞TBM施工过程提供一种新的分析工具.

Dynamic Visual Simulation of TBM Construction Based on 3-D Geological Model

According to the characteristics of tunnel boring machine (TBM) construction,which is affected by many factors and consists of complex geologic condition,the idea of introducing 3-D geological modeling technique into simulation of TBM construction was presented,and dynamic visual simulation for TBM construction of long tunnel based on 3-D geological model was studied. The 3-D geological model of TBM construction region was set up; with consideration of the effects of geologic factors,the parameters were chosen and the models for different geologic states were built to simulate and analyze the TBM construction process; by coupling construction information with 3-D dynamic appearances from the results of simulation,dynamic visualization of TBM construction process based on 3-D geological model was carried out. Outcome of application in an example shows that the method alters the presentation pattern of simulation result,which supplies a new tool for analyzing of TBM construction process of long tunnel.