
1月17日,大连湾海底隧道工程第二批沉管出坞与E2管节整平施工同步进行,抢抓节前冬季施工窗口期。
此次第二批出坞沉管为东坞E2、E3、E4三个管节,长180米,宽33.4米,高9.7米,重约5.5万吨,均为标准管节。出坞顺序为E4、E3、E2,出坞完成后E2管节将与安装船完成船管连接,并进行二次舾装工作,为春节后的沉管安装做好准备。

与此同时,整平船“津平1”已经进场,开始进行E2管节底层碎石基床整平工作。受地质条件影响,此次整平仍采用全漂浮整平施工工艺。为抢抓工期,保证整平作业不受炸礁、清渣等工序的影响,按照项目整体安排,节前将完成整平E2管节底层碎石铺设工作,为节后快速完成E2管节基床整平工作奠定基础。
大连湾海底隧道是我国北方寒冷地区首条跨海沉管隧道,冬季施工气候寒冷,中交大连湾海底隧道工程项目总经理部第四工区提前收集、评估施工区域的气象资料、海况情况,密切关注天气变化,做好防冻、防滑、防寒潮大风等措施,确保冬季施工人员安全和各项设备正常运行。
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