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成渝中线高铁最长桥建设迎新进展

来源:429.scxinxi.com 更新时间:2026年03月15日

全长14公里

成渝中线高铁最长桥建设迎新进展

1月26日,成渝中线高铁龙泉特大桥系杆拱施工完成。

长江沿岸铁路集团四川有限公司供图

华西都市报讯(记者曹菲)记者从长江沿岸铁路集团四川有限公司获悉,1月26日,经过150个小时的落梁作业,成渝中线高铁最长桥——龙泉特大桥系杆拱完成施工。龙泉特大桥东起成都市龙泉驿区洛带镇,西至成华区龙潭街道,全长14公里,是成渝中线高铁全线最长的桥梁。

大桥采用1孔72米系杆拱桥结构,配合高位落梁施工工艺,跨越既有市政道路,可最大限度保证桥下通行净空,从而在不中断桥下交通的情况下完成梁体施工。

据中铁二局成渝中线2标项目经理戴红斌介绍,该72米系杆拱桥为钢筋混凝土结构,重达6000吨,历时150天制作完成。为保障3.1米高的落梁安全和精准,项目团队配备了24台额定起重量达600吨的高精度液压千斤顶,并采用PLC智能液压同步系统,实现所有千斤顶的同步协同作业;通过实时监测系统,使每一环节的下落步骤精准可控。梁体在近7天的落梁过程中始终保持平稳,最终精准落至设计支座位置。

目前,龙泉特大桥全桥仅剩9片梁未架设,预计2月初实现全桥合龙贯通。

长江沿岸铁路集团四川有限公司成渝中线指挥部指挥长王学生介绍,目前,成渝中线高铁四川段建设正稳步推进,全线隧道已贯通25座,桥梁已合龙47座,工程已全面进入站房、“四电”工程及无砟轨道施工的关键阶段。

成渝中线高铁是我国“八纵八横”高铁网沿江通道的重要组成部分,正线全长292公里,设计时速350公里。项目预计2027年建成通车。届时,成渝两地旅行时间将进一步压缩至50分钟。返回搜狐,查看更多

深度报道 · 四川经济观察

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专栏 · 岁月川味

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