| 山岭隧道结构BIM多尺度建模与自适应拼接方法及工程应用 |
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| 引用本文： | 李晓军,田吟雪,唐立,陈树汪,王安民.山岭隧道结构BIM多尺度建模与自适应拼接方法及工程应用[J].中国公路学报,2019,32(2):126-134. |
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| 作者姓名： | 李晓军 田吟雪 唐立 陈树汪 王安民 |
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| 作者单位： | 1. 同济大学土木工程学院, 上海 200092;
2. 云南省交通规划设计研究院有限公司, 云南昆明 650041 |
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| 基金项目： | 国家自然科学基金项目（51478341）；上海市科委科技攻关项目（16DZ1200303） |
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| 摘 要： | 建筑信息模型（BIM）在建筑领域应用越来越广，然而在山岭隧道工程中，由于结构形式较上部建筑有很大区别，利用Revit等BIM软件建立精细的山岭隧道结构三维模型尚存在困难且难以重复利用。针对该问题，首先系统地提出了山岭隧道结构BIM模型分解方案，将模型分解为基本构件并沿轴线划分为基本单元，根据构件特点给出单元长度确定原则，并根据其是否具备可复用性分为标准段与特殊段。其次，将模型分为3个细节层次（LOD100，LOD200，LOD300）以满足不同设计阶段的需要，提出标准段单元的多尺度参数化建模方法，为隧道结构BIM建模提供了依据，并为提高BIM模型可视化管理效率奠定了基础。最后，提出了模型基本单元自适应拼接方法，根据隧道轴线的里程桩号及其对应的三维坐标与设计断面类型，将不同长度的标准段与特殊段单元模型按照离散化的轴线自动拼接，形成完整的隧道模型。以云南省保泸高速老营隧道为工程背景，利用Revit软件建立了隧道结构标准段与特殊段参数化模型单元，采用Unity3D软件并编写拼接程序，实现了模型单元的自适应拼接与多尺度分级加载，得到完整的老营隧道结构BIM模型。多尺度参数化建模与自适应拼接方法提高了隧道工程结构三维模型的复用性与建模效率，对BIM技术在山岭隧道工程中的应用具有一定的借鉴作用。
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| 关 键 词： | 隧道工程 山岭隧道 三维建模 多尺度 自适应拼接 BIM |
| 收稿时间： | 2018-08-19 |
Multiscale BIM Modeling and Adaptive Splicing Method of Mountain Tunnel Structure for Engineering Application |
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| LI Xiao-jun,TIAN Yin-xue,TANG Li,CHEN Shu-wang,WANG An-min.Multiscale BIM Modeling and Adaptive Splicing Method of Mountain Tunnel Structure for Engineering Application[J].China Journal of Highway and Transport,2019,32(2):126-134. |
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| Authors: | LI Xiao-jun TIAN Yin-xue TANG Li CHEN Shu-wang WANG An-min |
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| Affiliation: | 1. School of Civil Engineering, Tongji University, Shanghai 200092, China;
2. Yunnan Institute of Transportation Planning and Design, Kunming 650041, Yunnan, China |
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| Abstract: | Building Information Modeling (BIM) is widely utilized in the field of construction engineering. However, because tunnel structure differs from building structure significantly, there are some difficulties in establishing an elaborate three-dimensional model of tunnel structure using BIM software such as Revit, and the model is difficult to be reused. To address this problem, this work first proposes a BIM model decomposition scheme for mountain tunnel structure, which is decomposed into basic components and divided into basic units along the axis. The unit length determination principle was given according to the characteristics of the components, and according to whether this model could be reused, the basic units were divided into standard and special units. Second, the model was divided into three levels of detail (LOD100, LOD200, LOD300) to meet the needs of different design stages. The multiscale parametric modeling method of standard units was proposed to provide a basis for tunnel structure modeling. It laid the foundation for improving the efficiency of BIM model visualization management. Finally, this work proposes an adaptive splicing method for the basic units of the model. According to the mileage of the tunnel axis and its corresponding three-dimensional coordinates and design section type, the models of standard units for different lengths and special units are automatically spliced according to the discretized axis, thus forming a complete tunnel model. Based on the Laoying Tunnel of Baolu Expressway in Yunnan Province, this study uses Revit to establish the parametric models of standard units and the special units of the tunnel structure. Through the Unity3D software and the splicing program, the adaptive splicing and multiscale loading of the model units were realized, and the complete BIM model of Laoying Tunnel was formed. The multiscale parametric modeling and adaptive splicing method improves the reusability and modeling efficiency of the 3D model of the tunnel structure, and provides a reference for the application of BIM technology in mountain tunnel engineering. |
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| Keywords: | tunnel engineering mountain tunnel 3D modeling multiscale adaptive splicing BIM |
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