高速铁路太行山超长隧道群关键技术

为研究解决石家庄至太原高速铁路隧道断面有效净空面积标准、长段落膏溶角砾岩地层内修建隧道、特大断面隧道修建以及超长隧道(群)防灾救援系统设置等技术难题,通过采用调研分析、数值模拟、模型试验、现场试验段试验等一系列研究手段,确定了时速250 km高速铁路单线、双线隧道有效净空面积标准,顺利实施了高速铁路特大断面隧道到2条单线隧道的过渡,安全通过了长大段落膏溶角砾岩地层,创建了铁路特长隧道(群)防灾救援成套技术,最终实现了石太客运专线的顺利开通运营,并取得了良好的经济效益和社会效益。

Key Technologies for Taihangshan Super-long High-speed Railway Tunnel Group

Key technologies for Taihangshan super long high speed railway tunnel group, including standard for the effective clear area of high speed railway tunnels, tunneling in long distance gypsum breccia section, construction of super large cross section tunnel and arrangement of disaster prevention and rescue system of super long tunnel group, are studied by means of literature survey, numerical simulation, model test and field trials. In the end, the standards for the effective clear areas of single track and double track tunnels on 250 km/h high speed railways are determined, the transition from a super large cross section high speed railway tunnel to twin single track tubes is achieved, the tunneling through long distance gypsum breccias is accomplished, the disaster prevention and rescue system of super long tunnel group is determined, Shijiazhuang Taiyuan high speed railway is put into operation successfully, and good economic and social significance is achieved.