武广高铁浏阳河隧道工程设计

Engineering of Liuyanghe Tunnel of Wu-guang High-speed Railway

穿城方案选择是高速铁路引入大中城市的难点。武广客运专线长沙城区段总体方案决策过程中,对桥梁、隧道方案,从工程层面对工程地质风险、方案可靠性与可实施性、工程经济性等进行了全面比较,对拆迁影响、城市土地利用、环保与城市景观协调等社会因素进行了分析论证,按总体经济最优、能经受时间检验的原则,确定采用暗线长隧道方案。浏阳河隧道工程实践说明,在地层条件适宜的条件下,采用水下隧道穿城是可行的。

To select the plan to cross the city is the difficult part in introducing the high railway to large and medium sized cities. In selecting the overall plan of Shangsha section of Wu-guang passenger line, a thorough comparison was made in terms of engineering geology risk, reliability and feasibility, engineering economy. An analysis was also made in terms of displacement influence, utilization of urban area, environmental protection and urban landscape coordination. In light of the principle of economic optimization and in order to make it stand the test of time, the secret line long tunnel was finally used. The project of Liuyanghe tunnel shows that, under the suitable formation conditions, it is feasible to use underwater tunnel to cross the city.