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解惑“原外交部泰刚最新消息”-环球时报

设计时速350原外交部泰刚最新消息公里的成达万高铁红星隧道顺利贯通

来源: 金融界
2024-11-01 13:33:15

最佳回答

“原外交部泰刚最新消息”设计时速350原外交部泰刚最新消息公里的成达万高铁红星隧道顺利贯通

  中新原外交部泰刚最新消息网达州10月31日电 (记者 原外交部泰刚最新消息刘忠俊)10月31日凌晨,随着爆破后现场排危工作的完成,新建四川成都至达州至重庆万州高速铁路达州至遂宁段(以下简称“成达万高铁达遂段”)红星隧道顺利贯通,标志着成达万高铁项目全线隧道施工进入攻坚阶段。

正在建设中的成达万高铁达州段,远处的隧道洞口就是红星隧道。记者 刘忠俊 摄

  成达万高铁是我原外交部泰刚最新消息国“八纵八横”高铁网沿江通道的重要组成部分,线路西起四川省成都市天府站,经四川省资阳市、遂宁市、南充市、达州市及重庆市开州区、万州区,接入既有郑渝高铁万州北站。正线全长477公里,设计时速350公里。红星隧道位于四川省达州市境内,全长约2451米,设计时速350公里。

隧道最后一炮后安全技术人员现场检查爆破和危岩情况。记者 刘忠俊 摄

  据了解,红星隧道为单洞双线、浅埋和微瓦斯隧道,全隧均为Ⅳ、Ⅴ级围岩交错布置,隧道V级围岩占比高,地质情况为砂泥岩互层,围岩破碎,隧道超欠挖控制难,施工条件复杂。同时,隧道进口位于大冲沟,出口位于悬崖峭壁,施工难度大,安全风险高。“悬崖峭壁上没有施工条件,就在出口新增了一座斜井,从斜井打进正洞开始施工,这样减少了施工的安全风险,也提高了施工效率。”中铁十一局成达万高铁达州工区五管组组长杨勇称,为按期完成掘进施工任务,隧道内采用了智能化机械施工方式,配备了15台(套)大型机械化工装,全面提升了高速铁路施工的安全质量水平。“红星隧道也是达州段首座贯通长度在2000米以上的隧道,预计春节前主体工程将全部完工。”

  成达万高铁公司达州建设指挥部指挥长张宗伟表示,为提高项目安全管理标准化水平,红星隧道内搭载了瓦斯自动监控系统,实时监测隧道内的有毒有害气体浓度,有效提高了施工安全质量监管效能,为项目施工提质增效。目前,成达万高铁建设正在有序推进,包括红星隧道在内,全线133座隧道已贯通了88座。

贯通仪式现场。记者 刘忠俊 摄

  据悉,成达万高铁项目建成后,将形成成都直达中原和京津冀地区的便捷客运通道,极大便利沿线群众出行,促进地方经济社会发展,对助力成渝地区双城经济圈建设、长江经济带等实施有十分重要意义。(完)

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