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                          我國最東端高速鐵路牡佳客專重要下穿工程順利貫通

                          來源:新華網客戶端

                            (記者王君寶)由中鐵二十二局集團承建的牡(丹江)佳(木斯)客專米廠路下穿框構主體30日順利貫通。

                            牡佳客專米廠路下穿工程于2017年7月開工建設,位于牡丹江火車站的“東咽喉”區,是決定牡佳客專全線鋪軌能否順利完成的重難點工程。

                            該下穿工程項目負責人張志永介紹,工程主體全長640米,寬22米,重7800噸,下穿牡佳客專鐵路、圖佳鐵路和木材專用線等5條鐵路正線,加之牡佳客專設計等級、技術標準和質量要求較高,線路又位于寒冷地帶,整體框構涉及防雪害、冬季施工等技術性難題,施工難度較大。

                            為保證五條鐵路正線的行車安全,施工過程中,項目部成立技術攻關小組,在鐵路線兩側利用“工字鋼”縱橫梁法對線路進行加固,運用“頂推法”設置10處頂進點,解決了牡佳客專全線鋪軌施工建設的重大節點難題。

                            全長370余公里的牡佳客專是東北高速鐵路環線的重要組成部分,線路途經雞西市、七臺河市等,對黑龍江省經濟發展具有重要意義。

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