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       6月17日,大連地鐵5號線秀月街站-桃源站盾構區間,“大連7號”“大連9號”盾構雙子星準備完備,“大連7號”在桃源站順利始發,向著秀月街站方向掘進,“大連9號”月底前也將再次始發,盾構雙子星開啟“奔月”征程, 5號線建設進入加速度。

       秀桃盾構區間全長713.931m,區間線路呈“S”型分布,由兩個半徑R=350m和R=330m曲線連接。區間穿越地層均為強-中風化石英巖,巖層強度高,最大強度達到120 Mpa,給盾構掘進帶來了較大的挑戰。

       現場了解到,桃源站施工場地小、地勢落差大、地下水豐富、地質條件差、交叉作業頻繁、施工環境復雜敏感,加之受疫情影響,造成工期異常緊張。面對嚴峻形勢,建設者們扎實深入開展“抗疫情、保增長、大干100天”勞動競賽活動,通過科學優化施工方案、強化資源配置供應、緊抓工序有效銜接等有力措施,全力以赴把因疫情造成的損失搶了回來,確保了桃源站提前封頂和“大連7號”盾構機按時順利始發。

      據了解,執行秀桃區間右線任務的“大連9”盾構機正在維修保養,月底前具備條件后將再次始發。屆時,“大連7號”和“大連9”將繼續左右合力掘進,秀桃區間有望實現年內雙線貫通目標。


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