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                                                                            四川雅安至新疆葉城高速公路四川段康定跑馬山1號隧道右洞貫通

                                                                            發布: 橋檢車小編 時間: 2023-10-23 瀏覽次數:367

                                                                              10月22日,隨著一聲炮響,世界進出口海拔高差最大單體隧道——四川雅安至新疆葉城高速公路(下稱:“雅葉高速”)康定過境段跑馬山1號隧道右洞順利貫通。

                                                                              據了解,雅葉高速公路康定過境段跑馬山1號隧道位于四川甘孜州康定市,起于康定市爐城街道升航村,止于康定市榆林街道跑馬山村,左洞長8865米,右洞長8780米,最大埋深1250米。該隧道由蜀道集團藏高雅康公司投資,四川路橋交建集團承建。隧道進出口海拔高差220米,相當于80層樓高,較已建成的云南福宜高速萬溪沖隧道多46.4米,屬世界高速公路單體隧道進出口高差之最。

                                                                              目前,雅葉高速公路康定過境線項目隧道工程累計已完成28250米,其中跑馬山1號隧道雙向完成17393米,還剩余252米。建成后,將有效分流康定城區過境車流、緩解城區交通擁堵壓力,對提高川藏通道交通安全,增強應急保障能力具有重要意義。

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