基于Bentley平台的铁路隧道BIM技术应用研究

以Bentley平台为技术支持,以京张高速铁路隧道工程为项目背景,以BIM技术在隧道设计中的应用为目的进行研究。叙述了BIM隧道建模过程及对铁路BIM标准的验证,通过使用BIM技术进行碰撞检测、正向设计、协同设计对设计流程的优化,总结了出现的问题及解决对策。研究认为:现阶段Bentley平台上BIM技术在铁路隧道设计中还不能满足出图和工程量计算的要求;在模型不同的设计阶段,由于精度要求的不同导致模型有时无法重复利用;模型的应用在设计、施工、运维间缺乏联系。解决以上问题需要根据隧道专业的需求进行有针对性的二次开发;提高BIM模型的重要性以替代二维出图;规范中对于BIM精度的要求应通过项目的验证不断优化;应制定统一的标准,规范BIM设计各阶段完成内容,构建多阶段、多专业的BIM平台。

Research on Application of BIM Technology in Railway Tunnel Based on Bentley Platform

With Bentley platform as the technical support and the project of Beijing-Zhangjiakou High-speed Railway Tunnel as the background,researches are carried out for applying BIM technology in tunnel design. This article describes the BIM tunnel modeling process and validation of railway BIM standards,explores the BIM technology in collision check,forward design and collaborative design,and summarizes the problems and solutions. It is concludes that BIM technology on Bentley platform at present cannot satisfy the needs of drawings and quantity calculations in railway tunnel design. At different design stages of the model,the model is sometimes unable to be reused due to different precision requirements,and there is a lack of connection between design,construction and operation in the application of the model. To solve the above problems,it is necessary to carry out targeted secondary development according to the needs of tunnel professionals,to improve the importance of BIM model to replace two-dimensional drawing,to optimize the requirements of BIM precision in the standard through project verification,to unify standards and define the detains in each stage of BIM design and to build multi-stage and multi-professional BIM platform.