Risk, Contract Management, and Financing of the Gotthard Base Tunnel in Switzerland

1. Introduction With the opening ceremony of the Gotthard Base Tunnel on 1 June 2016, a new world record was established: the commissioning of the longest railway tunnel in the world. Many challenges have been overcome and many technical innovations have been developed and considered in this project. As of 11 December 2016, the Gotthard Base Tunnel has been an integral part of the new timetable of the Swiss Federal Railways (SBB-CFF-FFS), and is in full operation. With a total length of 57 km and a cruising speed of 200 km·h^-1 for passenger trains, the Gotthard Base Tunnel reduces the journey time through the Alps by 40 min, significantly reducing the distance between the south and north of Europe.

瑞士圣哥达山底隧道的通风防灾技术

隧道的通风、防灾技术是高速铁路建设及运营的关键技术之一。文章以世界上最长的圣哥达山底隧道为例,简要介绍了瑞士高速铁路长大隧道的通风、防灾系统及安全技术,并提出了我国长大隧道设计、规范修编的借鉴建议。

由新圣哥达隧道思考高黎贡山隧道的修建

研究目的:新圣哥达隧道全长57.1 km,是目前世界上最长的铁路隧道之一,在其修建过程中,针对复杂的地质条件,取得了一系列研究成果。高黎贡山隧道是我国正在修建的最长的铁路隧道,全长34.538 km,地质条件同样复杂,修建过程中必然也会遇到许多技术难题。因此,通过对新圣哥达隧道技术成果进行梳理、提练,对高黎贡山隧道地质进行系统分析,以期对高黎贡山隧道的成功修建提供有益指导。研究结论:(1)高黎贡山隧道具有"地层岩性多样、地质构造复杂、隧道水量丰富、地温地热明显、软岩地应力高"的特征,施工过程中必将遇到富水断层、软岩高地应力大变形、高地温热害等技术难题,需要借鉴新圣哥达山隧道的施工经验,采取超前支护、注浆加固、制冷通风等一系列技术措施,以确保施工安全;(2)高黎贡山隧道工期压力巨大,必须加强机械设备配套,加强施工组织管理,以确保按期完成;(3)该研究成果可应用于类似特长隧道工程的设计与施工中。