四川:京昆高速广绵扩容项目黑龙滩特大桥合龙|国产精品久久久久久久妇
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中新网成都8月1日电 (记者 王鹏)8月1日,由蜀道集团投资建设的京昆高速广元至绵阳段扩容项目(简称广绵扩容项目)全线关键控制性工程——黑龙滩特大桥实现双幅合龙,标志着全线8座连续刚构桥梁全部合龙,为项目2026年通车奠定了坚实基础。

黑龙滩特大桥位于广元市剑阁县普安镇,全长945米,主墩最高超80米,施工精度要求高。大桥地处剑门蜀道风景名胜区与翠云廊自然保护区交汇区域,生态保护压力大。施工过程中,项目团队践行生态优先理念,采用设备“油改电”、设截排水沟、同步植草护坡、建设多级沉淀池等措施,最大限度降低对自然环境的影响。
广绵扩容项目概算总投资291.9亿元,截至目前累计完成投资234.5亿元,控制性工程完成98.99%。项目起于广元市周家河,止于绵阳市魏城镇东南侧,全长123.984公里,双向6车道,设计时速120公里,是国家京昆高速的重要组成部分,承担着四川北上出川的重要交通功能。
该项目建成后将有效缓解京昆高速广绵段通行压力,广元至绵阳车程将由原来的2小时缩短至70分钟,对提升区域交通效率、助推成渝地区双城经济圈建设具有重要意义。(完)
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