
5月18日,随着316国道董奉山隧道右主洞掌子面的一声炮响,福建最大断面国道316线董奉山隧道掘进顺利突破5000米,为董奉山隧道按期全部贯通奠定了坚实基础。

董奉山隧道全长4.07公里,主路隧道为双向八车道,辅路隧道为双向四车道。隧道左右、主辅四洞并行,是我国在建最大跨度城市隧道群,开挖最大净宽超过20米,施工长度均超过2公里。隧道地质条件复杂,穿越4条构造断裂带和2处节理裂隙密集带,施工难度大,安全风险高,四洞累计长度达8197米,是全线重点控制性工程,其中两座主洞开挖净宽超20米,断面超230多平方米。

董奉山隧道,位于福州国道316线长乐漳港至营前段,是为进一步完善普通国省干线路网布局,加强福州中心城区与福州新区滨海新城的快速联系,服务福州东进南下发展战略,满足区域经济社会发展需要的一条民生路、致富路。

Drilling Begins on the Yangtze River Shield Tunneling Project, the "Throat" of the China-Russia Eastern Route
下一篇First Tunnel on Sichuan Dehui Expressway Achieves Single-Tube Breakthrough

2026-10-18 0 0

2026-10-18 0 0

2026-10-17 0 0

2026-09-23 10598 0

Lize City Air Terminal Underground Main Structure Nearing Completion: Maximum Transfer Walk Under 4 Minutes After Operation

Anti-seepage Curtain for Main Lock Pit of CSCEC Port Shenqiu Double-Line Lock Project Completed on Schedule

All Pile Foundations Completed on Quanzhou Baiqi Channel

Hainan Upgrades Housing and Municipal Infrastructure

First Foundation Concrete Pour Successfully Completed for Zambia Kafue West–Muzuma 330kV Transmission Line EPC Project
Hot News
评论 (0)