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“137大䏣人文艺术”-译文小记

(粤港澳大湾区)137大䏣人文艺术深南高铁全线首座隧道贯通

来源: 上海证券报
2024-12-23 14:21:00

最佳回答

“137大䏣人文艺术”(粤港澳大湾区)137大䏣人文艺术深南高铁全线首座隧道贯通

  中新137大䏣人文艺术社广东云浮12月20日电137大䏣人文艺术 (记者 郭军)由中铁十四局承建的深南高铁竹斗夫隧道20日贯通,这是深南高铁全线首座实现贯通的隧道,标志着该工程建设走上快车道。

  深南高铁由中铁建华南建设有限公司总承包管理,线路起于珠三角枢纽机场,经佛山、肇庆、云浮至粤桂省(区)界,设计时速为350公里,预计于2027年底通车。中铁十四局承建标段位于广东云浮市,线路穿越两区(市)三镇,全长14.85公里。此次贯通的竹斗夫隧道全长209.5米,为单洞双线隧道,地质构造复杂,岩层扭曲破碎,存在断层、溶洞等多重不良地质风险,施工管控重难点多。

  为确保隧道顺利贯通,中铁建华南建设有限公司和中铁十四局建设团队针对隧道地质特点,采用新奥法设计原理组织施工,坚持“管超前、严注浆、弱爆破、短开挖、强支护、早封闭、勤量测、及时衬砌”的原则,对关键工序跟班盯控,深度落实穿透式、网格化管理要求,确保施工平稳有序推进。

  据施工现场负责人孙凤雪介绍,目前,中铁十四局承建的项目标段已有6处隧道开始施工,重点工程幌伞村隧道、新村隧道等已全面开工建设。

  据悉,作为连通粤桂两省区的重要大通道,深南高铁通车后,南宁至深圳高铁最快运行时间可由现在的3.5小时缩短至2.5小时,将进一步完善广东与广西、云南的高铁网,对支撑粤港澳大湾区和深圳先行示范区建设,推动云浮加快融入粤港澳大湾区一小时经济圈具有重要意义。(完)

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