青岛海底隧道3号风井风道开挖施工方案

On the Excavation and Construction Plan of the No. 3 Air Shaft and Air Duct in the Qingdao Subsea Tunnel

青岛海底隧道3号风井的风道结构较为复杂,洞室交错,高低、大小各异,共计14个不同断面,施工前根据设计和机械设备配置情况认真确定开挖原则,施工中周密安排施工顺序,认真考虑各部的开挖方法,最后实现安全、快速的施工,为多层群洞开挖提供一个范例。

The wind structure of No. 3air shaft in the subsea tunnel is relatively complex. With a total of 14 different sections, the chambers are different in height and size. Before construction, the excavation principles should be made according to the pre-construction design and mechanical equipment configuration. In order to guarantee the safe and fast construction and to set an example for digging multi-group holes, the construction sequence should be well-arranged and the excavation method of each section need serious consideration.