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Back成渝中线高铁动走线跨沙河特大桥顺利合龙
成渝中线高铁动走线跨沙河特大桥顺利合龙
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中国新闻网1 hour agoOther3 min readChinaView translation

成渝中线高铁动走线跨沙河特大桥顺利合龙

该桥位于成都市金牛区,是成渝中线高铁引入成都枢纽项目的控制性工程

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10月13日,成渝中线高铁动走线跨沙河特大桥在成都金牛区顺利合龙。该桥全长约1.47公里,是连接成都站场与动车所的关键咽喉工程,标志着该项目施工取得重要进展。

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Why It Matters

成渝中线高铁动走线是连接车站与动车运用所的专用线路。该大桥位于成都核心区,施工涉及跨越既有交通干道及轨道交通线路。

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中新网成都10月13日电 (记者 刘忠俊)10月13日下午,随着最后一方混凝土浇筑完成,成渝中线高铁动走线跨沙河特大桥顺利合龙。

据了解,该大桥位于成都市金牛区,是成渝中线高铁引入成都枢纽项目的控制性工程。桥梁全长约1.47公里,采用(62+2×112+62)米现浇连续梁结构,沿线依次跨越大沙河、既有驷马桥城市主干道、地铁3号线和新建客机整备所西咽喉区。整座桥按“左右线、双线、左右线”三段设计,桥墩从0号排到39号,此次合龙的节段位于19号墩与20号墩之间,正好跨过大沙河和驷马桥路。

所谓动车走行线,简称“动走线”,是铁路系统连接车站与动车运用所的专用线路,供动车组列车在车站和检修、整备基地之间往返。

中国铁路成都局集团有限公司成都建设指挥部工程管理部副主任陈惠强介绍,工程地处城市核心区,周边环境复杂敏感,既横跨车流密集的交通主干道,又要下穿、上跨多条既有轨道交通线路,交叉作业协调难、环保管控标准高、施工工序繁杂、高墩作业风险突出,是全线施工难度最大的节点工程之一。

“针对高墩施工、跨路作业、邻近既有营业铁路施工等高风险工序,项目团队对现浇连续梁实施全过程实时应力与线形监测,动态调整施工参数,确保梁体线形流畅平顺、内力符合设计要求。”中铁八局成渝中线高铁成都枢纽项目部项目经理吴朝旭称,在质量管控上,模板安装、钢筋绑扎、混凝土浇筑等关键工序逐项严格把关,执行“三检制”,各项指标均符合设计和规范要求。

城市核心区里施工,对环保的要求同样不低。项目严格落实扬尘管控、降噪减污等措施,最大限度减少了对周边交通和环境的影响。

据悉,成渝中线高铁动走线跨沙河特大桥顺利合龙后,动车往返成都站场与动车所的走行路径就高效串联起来,成渝中线高铁动走线工程的关键咽喉节点就此打通,也为后续附属及配套工程全面铺开作业面创造了条件。

Open Questions

  • 该高铁线路预计全线通车的时间点。

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This article was originally published by 中国新闻网.

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