摘要
沉管出坞是沉管浮运安装阶段的重要节点和首道工序,预制场深坞区和坞口尺寸的限制增加了沉管出坞的难度。通过合理利用沉放驳上绞车、坞顶绞车、出坞定位系统及快速脱钩器等设备,制定一套完善的沉管出坞施工流程及方法。经过实际工程验证,该方法效率高、安全性高,且降低了成本。
Tunnel element dock outing is the key node and the first procedure in transportation and placement of tunnel ele ment, the construction area at dock entrance is very narrow, which increases the difficulty of tunnel element dock outing. We developed a new construction method for large tunnel element dock outing successfully, which is mainly by cooperation opera tion of windlass onshore,onboard immersion barge,positioning system and rapid unhooking device. Tested by some practical projects, this method is high efficiency, high safety, and can reduce the cost.
出处
《中国港湾建设》
2014年第7期54-55,58,共3页
China Harbour Engineering
关键词
超大型沉管
出坞
绞车
定位系统
large tunnel element
dock outing
windlass
positioning system
