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, 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.