在分析洪涝地区洪水灾害时,洪水灾害可采用2维恒定流数值技术进行模拟,在铁路防洪中该技术获得较为广泛的应用。本论文分析了洪水灾害采用2维非恒定数值模拟技术进行分析,根据建设铁路周边环境、防洪泄洪构筑物设计、铁路选线、洪水调度分析等情况,确保合理、可行的线路方案,并对先关设计参数进行调整。 In the analysis of flood disaster in flood area, flood disaster can be simulated by 2-D constant flow numerical technique, which has been widely used in railway flood control. This paper analyzes the flood disaster using 2-D unsteady numerical simulation technology to analyze, according to the construction of the railway surrounding environment, flood control and flood relief structures design, railway alignment, flood scheduling analysis and so on, to ensure a reasonable and feasible line program, and the first off Design parameters to adjust.