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铁路路基装配式U型槽设计施工一体化BIM技术研究

Integrated BIM technology for design and construction of prefabricated U-grooves in railway subgrade

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为解决预制U型槽各构件设计深度不足、U型槽和泵站间接口复杂且易出现渗漏水病害、传统的预制构件外观质量检测手段效率低且精度不足的问题,开展铁路路基装配式U型槽设计施工一体化BIM技术研究.通过BIM深化设计,精细模拟钢筋、套筒、波纹管、下料孔等构件的空间位置关系,优化钢筋布置;进行泵站与U型槽主体结构一体化BIM设计,共用侧墙,消除二者连接薄弱点;制定预制U型槽外观质量检测标准,通过光学追踪激光扫描仪获取构件点云,开展关键尺寸分析处理,实现自动化外观质量检测.应用结果表明,该技术可有效降低钢筋干扰、增强设计整体性、提高外观质量检测的效率和精度,为铁路预制装配式结构提供了基于BIM的设计施工一体化解决方案.
To solve the problems of insufficient design depth of prefabricated U-shaped groove components,complex interface between U-shaped groove and pump station,and low efficiency and accuracy of traditional prefabricated component appearance quality inspection methods,this paper researched on integrated BIM technology for the design and construction of prefabricated U-shaped grooves in railway subgrade.The paper conducted BIM deepening design,finely simulated the spatial position relationship of components such as rebar,sleeves,corrugated pipes,and feeding holes,and optimized the arrangement of steel bars;focused on the integrated BIM design of the pump station and U-shaped groove main structure,sharing side walls to eliminate weak connection points between the two;established a standard for the appearance quality inspection of prefabricated U-shaped grooves;obtained the component point cloud through an optical tracking laser scanner,and conducted the key dimension analysis and processing to implement automated appearance quality inspection.The application results show that this technology can effectively reduce rebar interference,enhance design integrity,improve the efficiency and accuracy of appearance quality inspection,and provide a BIM based integrated design and construction solution for railway prefabricated structures.

railway subgradeU-grooveprefabricatedintegration of design and constructionBIM(Building Information Modeling)quality inspectioncomponent point cloud

齐成龙、张贵忠、王明明、康银庚

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中国铁路设计集团有限公司 土建院,天津 300308

京津冀城际铁路投资有限公司,北京 100097

中国国家铁路集团有限公司 工程管理中心,北京 100038

铁路路基 U型槽 装配式 设计施工一体化 BIM 质量检测 构件点云

中国国家铁路集团有限公司科技研究开发计划项目中国铁路设计集团有限公司科技开发课题

N2023G0702023A0253806

2024

10.3969/j.issn.1005-8451.2024.07.05

铁路计算机应用
中国铁道科学研究, 中国铁道学会计算机委员会

铁路计算机应用

影响因子：0.267
ISSN：1005-8451
年,卷(期)：2024.33(7)