Abstract: In order to improve the efficiency of BIM modeling for railway mountain tunnel lining structures and the versatility of parameterized models, and solve the limitation of its built-in geometric constraint representation on the secondary development of parameterized lining structure modeling, the parameterized modeling of railway mountain tunnel lining structures was studied based on geometric semantics. The parameterized modeling algorithms for railway lining structures were developed and implemented in 2D & 3D environments respectively. A lining cross-section design software with real-time display of two-dimensional wireframing and output of XML results was developed, and a BIM design software for railway mountain tunnel lining was formed through the secondary development of the domestic BIMBase platform. The research results show that based on geometric semantics, the cross-sectional profile of railway lining structures is decomposed, the parameter relationship of cross-sectional profile under the segmented form is determined, and a parameterized design algorithm for cross-sectional profiles is proposed. Based on RapidXML package and Win32 API, the lining cross-section design software is developed to achieve interactive feedback design of cross-section profile in a two-dimensional environment. Based on domestic BIMBase geometry engine, 3D design software is developed, which verifies the effectiveness of cross-sectional design software and parameterization algorithm. The proposed parameterization algorithm is not limited by the built-in constraint representation of geometry engine and can directly draw the section profile, while meeting both the requirements of 2D & 3D design of lining structure, which improves the versatility of parameterized design of railway tunnel lining structures.

Key words: tunnel engineering; railway; lining; semantics; model; BIM; parameterization

摘要： 为提高铁路山岭隧道衬砌结构BIM建模效率及其参数化模型的通用性，并解决其内置几何约束表征对二次开发参数化衬砌结构建模的限制问题，基于几何语义对铁路山岭隧道衬砌结构参数化建模进行研究，在二、三维环境下分别发展铁路衬砌结构参数化建模算法，开发具备二维线框图实时展示及XML结果输出功能的衬砌横断面设计软件，并通过国产BIMBase平台二次开发形成铁路山岭隧道衬砌BIM设计软件。研究结果表明：基于几何语义对铁路隧道衬砌结构断面轮廓进行分解，确定分段形式下的断面轮廓参数关系，提出一种断面轮廓参数化设计算法；基于RapidXML工具包和Win32 API开发衬砌横断面设计软件，实现二维环境下的断面轮廓交互式反馈设计；基于国产BIMBase几何引擎开发三维设计软件，验证横断面设计软件及参数化算法的有效性；提出的参数化算法不受几何引擎内置约束表征的限制，可直接绘制断面轮廓，同时满足衬砌结构二、三维设计需求，提高铁路隧道衬砌结构参数化设计的通用性。

关键词: 隧道工程；铁路；衬砌；语义；模型；BIM；参数化