地铁站点防洪排涝风险评价研究

随着城市化的发展,地铁成为许多大中城市缓解地面交通的有效途径,而随着大量地铁的修建,地铁基坑塌陷、进水和站点淹没等事故时有发生,地铁站点的防洪排涝成为一个新的研究课题。本研究以成都地铁2号线西延线6个站点为例,将地铁站点防洪作为一个风险问题加以分析和研究,考虑影响地铁站点的防洪排涝因子,采用模糊属性评判方法,系统分析站点的防洪排涝风险等级,并对站点进行水文测算,给出在设计洪水条件下各站点可能的淹没水深,指导地铁站点建设和运行过程中防洪排涝工作的顺利进行。

Flood Control and Waterlogging Risk Assessment of Metro Stations

With the development of urbanization in china, the subway in many cities becomes an effective way to ease on-ground transportation. With the construction of a large number of metro, accidents such as subway excavation collapse, water intake and submerged sites have happened. The flood control of metro stations becomes a new research topic. The metro flood control is studied as a risk problem in this paper. Adopting fuzzy attribute judgement method, the risk grade of metro stations is evaluated based on the analysis of various factors of flood control and waterlogging. A hydrological calculation is carried out, and the submerged depth in conditions of design flood is given. Taking the six stations of Chengdu metro line 2 as an example, to provide a more reliable basis for the flood control and waterlogging of metro stations.