地铁区间隧道下穿高速铁路桥梁安全评价分析及防治对策

Research on Safety Evaluation and Prevention Measures for Subway Tunnel Undercrossing High Speed Railway Bridges

结合某地铁区间隧道下穿高速铁路桥梁的工程实例,基于工程实际条件及高速铁路运营安全要求,论文从方案分析、风险源分析及方案设计3方面对下穿方案进行详细论述,并通过Midas GTS三维数值建模分析该工程施工对高速铁路桥梁的影响,最后提出了地铁区间隧道下穿铁路桥梁工程的施工建议。

Combined with the engineering example of a subway section tunnel underpass high-speed railway bridge,based on the actual engineering conditions and the operation safety requirements of high-speed railway,the paper discusses the underpass scheme in detail from three aspects of scheme analysis,risk source analysis and scheme design,and analyzes the impact of the project construction on the high-speed railway bridge through Midas GTS three-dimensional numerical modeling.Finally,the construction suggestions of the subway section tunnel under the railway bridge project are put forward.