| 下穿顶进框架桥线路加固优化设计 |
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| 引用本文： | 朱金涌.下穿顶进框架桥线路加固优化设计[J].路基工程,2013,0(1):149-151. |
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| 作者姓名： | 朱金涌 |
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| 作者单位： | 兰州铁道设计院有限公司，兰州 730000 |
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| 摘 要： | 通过南水北调总干渠与马磁铁路交叉处增建桥涵的工程实例，阐述不中断铁路运营对营业铁路线上进行平交改立交工程中的顶进框架桥设计的线路加固技术，对原有的横梁结合吊轨梁线路加固体系设计进行了优化，既节省了材料，又保证了顶进框架桥施工期间铁路的安全运营。
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| 关 键 词： | 下穿框架桥 顶进 线路加固 设计 |
| 收稿时间： | 2019-11-06 |
Optimizing Design on Reinforcement of Jacking-in Line for Under-passing Framed Bridge |
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| Authors: | ZHU Jinyong |
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| Abstract: | Based on the case study of the main channel of the South-to-North Water Transfer Project and the culvert addition at MACI Railway crossing project，the technology for jacking-in reinforcement in turning grade crossing into grade separation on business railway line under continuous operation is described，and the design against original reinforcement system using crossing beam combining with hang rail beam is optimized，through which material is saved and safe operation during jacking-in of bridging construction is guaranteed. |
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