4月25日，经过14个小时连续作业，大连湾海底隧道工程E3管节与E2管节实现精准对接，作业时间刷新了国内跨海沉管隧道浮运安装用时最短纪录。E3管节重约6万吨，沉放水深近30米。
为确保整平施工如期完成，大连湾海底隧道项目团队优化了沉放工艺，有效规避风险。E3管节安装完成后，项目团队已紧锣密鼓开展后续管节安装准备，预计年内安装10个管节。
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