摘要
为解决隧道设计及计算过程中重复建模、前处理步骤繁琐等问题,运用VB语言对CATIA软件进行二次开发,在CATIA“骨架线+草图”的概念下,依据不同隧道结构的参数化特征,开发隧道参数化设计程序,实现隧道在地质BIM模型中的快速设计。同时,基于FLAC^(3D)数值计算能力强但前处理能力较差、CATIA软件建模能力强但有限元分析能力较弱的特征,通过分析比较两款软件网格单元、节点等数据,开发了CATIA与FLAC^(3D)模型的转换接口,用户基于CATIA对隧道及地质模型进行网格划分后,通过转换接口将CATIA模型文件转换为FLAC^(3D)可直接识别的格式以进行下一步数值计算,降低了FLAC^(3D)前处理难度,实现了快速、准确地构建FLAC^(3D)模型过程。并以贵州某隧道工程为例,通过建立从设计到计算的隧道结构一体化工作流程,验证了隧道参数化设计及CATIA-FLAC^(3D)转换接口的可行性,可为隧道工程的快速设计和优化提供可靠的解决方案。
To solve the problems of repeated modeling and cumbersome pre-processing steps in tunnel design and calculation,this paper uses VB language to develop CATIA software.Under the concept of CATIA“skeleton line+sketch”,based on the parametric characteristics of different tunnel structures,we develop the tunnel parametric design program to realize the rapid design of tunnels in geological BIM models.At the same time,based on the characteristics of FLAC3D's strong numerical computation ability but poor pre-processing ability,and CATIA software's strong modeling ability but weak finite element analysis ability,the conversion interface between CATIA and FLAC3D model is developed by analyzing and comparing the data of mesh cells and nodes of the two software,and the user can convert CATIA model files to FLAC3D model through the conversion interface after meshing the tunnel and geological model based on CATIA.After users mesh the tunnels and geological models based on CATIA,the conversion interface converts the CATIA model files into a format that can be directly recognized by FLAC3D for the next numerical calculations,which reduces the difficulty of FLAC3D pre-processing and realizes the process of constructing the FLAC3D model quickly and accurately.Taking a tunnel project in Guizhou as an example,the integrated workflow of tunnel structure from design to calculation is established,and the feasibility of the parametric design of tunnel and the CATIA-FLAC3D conversion interface is verified,which provides a reliable solution for the rapid design and optimization of tunnel projects.
作者
黄殷婷
廖祥君
吕彬
傅志浩
HUANG Yinting;LIAO Xiangjun;LYU Bin;FU Zhihao(China Water Resources Pearl River Planning,Surveying&Designing Co.,Ltd.,Guangzhou 510630,China)
出处
《广东水利水电》
2025年第4期8-14,共7页
Guangdong Water Resources and Hydropower
基金
中水珠江规划勘测设计有限公司科研项目(编号:2022KY08-2)。
关键词
隧道工程
BIM
二次开发
参数化建模
有限元交互
tunnel engineering
BIM
secondary development
parametric modeling
finite element interaction
