姚记彩票
常州地鐵2號線五角場站至紅梅公園站區間左線盾構貫通
  時間:2019-03-15  點擊量:   
【字體:

貫通現場

3月15日,隨著“逐鹿一號”盾構機刀盤的緩慢駛出,常州市軌道交通2號線一期工程TJ04標紅梅公園站至五角場站盾構區間左線順利貫通。

紅五區間左線長1426.294米,共計1189環,盾構始發就面臨半徑R=320m的小半徑曲線,隧道最大埋深20米,包含7個不同等級的風險源,其中盾構下穿京杭運河約365米,京杭運河屬于國家文物,施工難度在全線屬于前列。

施工前,項目部制定了一系列的措施,做到超前籌劃。通過提前模擬下穿過程,預判施工中會發生的相關問題,合理部署,保證了盾構下穿工作的順利完成。施工中,采取盾構“連快穩”的掘進方式。“連”,盾構連續性施工,盾構下穿京杭運河期間排除一切外部因素,隧道內手對手交接班,保障盾構持續掘進;“快”,在保證施工安全質量的情況下,加快盾構掘進速度,減少工序銜接時間,保證施工速度;“穩”,盾構掘進不是盲目的追求速度,在快速掘進的同時,穩中取勝,嚴控同步注漿以及出土量,按照理論計算的指導參數結合監測數據,保證開挖面穩定,確保了施工安全。

經過項目全體施工人員的不懈努力下,紅五區間左線盾構機僅用22天就完成下穿京杭運河約365米的施工任務,平均每天達到掘進14環。成型隧道施工質量與施工進度均得到業主的肯定,被授予“優秀盾構施工標段”稱號。

紅梅公園站至五角場站盾構區間左線的順利貫通,標志著常州軌道二號線建設的又一難題被攻克,為全線的按期運營奠定了堅實的基礎。接下來項目部將再接再厲,早日完成剩余施工任務,為公司再創佳績。(第九項目部 寧平)


Produced By 大漢網絡 大漢版通發布系統 姚记彩票
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