白鹅潭大道上跨珠江隧道敞口段总体方案研究

Study on Overall Scheme for Baietan Avenue Spanning Open Section of Pearl River Tunnel

摘要:

白鹅潭大道为广州市白鹅潭商务区近江片区唯一南北贯通的城市次干道，白鹅潭大道上跨现状珠江隧道敞口段是使全线贯通的关键节点之一。综合考虑白鹅潭大道与现状珠江隧道及地铁结构的空间关系，在满足既有地铁保护要求、又不影响既有珠江隧道结构及运营安全的条件下，提出改造现状隧道敞口段侧墙增设台帽作为新建桥梁桥台、上跨既有隧道敞口段的总体设计方案。相关设计研究思路可供类似工程借鉴参考。

Abstract:

Baietan Avenue is the only urban north-south sub-arterial road in the area near the river of Baietan Business District in Guangzhou. Baietan Avenue spanning the current open section of the Pearl River Tunnel is one of the key nodes to connect the whole line. The spatial relationship between Baietan Avenue and the current Pearl River Tunnel and subway structure is comprehensively considered. Under the condition of meeting the protection requirements of the existing subway and not affecting the structure and operation safety of the Pearl River Tunnel, the overall design scheme of reconstructing the side wall of the open section of the current tunnel to add the abutment capping as a new bridge abutment and spanning the open section of the existing tunnel is proposed. The relevant design research ideas can provide the reference for similar projects.