长河坝工程大型隧道群平交段施工

摘要

The paper points out that large-scale hydropower projects are constructed incessandy in alpine valley area, the main traffic is to con-stitute a large tuunnel. The large tunnel maintains the features that plane cross-paragraph has large span cavern, hard to construct and there are many potential safety hazard and so on. The paper concludes experiences and lemons in order to provide such kind of project with guidance.%指出高山峡谷地带大型水电项目不断开工建设,其场内交通主要以大型隧道群构成,针对大型隧道群施工具有平交段洞室跨度大、施工难度大、施工安全隐患多等特点,总结了长河坝工程交通隧道平交段施工经验和教训,对今后类似工程的施工具有一定指导意义.