摘要
石门堂山隧道扩建工程路线总长约2 km,拟新建长720 m的超大跨度单洞四车道隧道,是国内首条既有连拱隧道侧新建的超大跨度隧道。隧道扩建工程实施后将与原双向四车道连拱隧道组合成双向八车道断面,有效打通交通瓶颈,缓解该处拥堵问题。
The total length of Shimentang Mountain Tunnel Extension Project is about 2 km.It is proposed to construct a 720-m long oversized-span single-hole four-lane tunnel,which is the first oversized-span tunnel newly built at the side if the existing multiple arch tunnel in China.After the implementation of the tunnel expansion project,the original two-way four-lane multi-arch tunnel will be combined into a two-way eight-lane section tunnel,which effectively open the traffic bottleneck and alleviate the congestion problem at this place.
出处
《城市道桥与防洪》
2021年第12期194-197,208,M0019,共6页
Urban Roads Bridges & Flood Control
关键词
总体设计
超大跨度隧道
四车道隧道
连拱隧道
新奥法
overall design
super-large span tunnel
four-lane tunnel
multi-arch tunnel
New Austrian Method
