Study Of Anti-Flood Airtight Measures Of Metro Running Tunnel Across Underwater Section

Taking the metro anti-flood airtight partition door system as case study. Going through the survey of metro engineering at home and abroad and civil air defence works. This article mainly researches from aspects, which includes the composition, system interface, system settings principle and the structure stress of the flood gate. This paper illuminates the reasons and meanings of the set which combines the flood gate system with the metro protection unit.Analyzing the criteria and principles of the anti-flood airtight partition door system. Making numerical simulation under various working conditions on the flood gate structure.1. The reasons, importance and necessity of the regional set which combines the flood gate system with the metro protection unit are studied according to the different functions of the metro anti-flood airtight partition door system in peacetime and wartime. The research lay a foundation for the setting and selection of the flood gate system.2. Put forward the principles of the anti-flood airtight partition door system for Chengdu line 7 according to the meteorological, hydrological and geological conditions in Chengdu area. The result of study apply to the settings of the anti-flood airtight partition door system of Chengdu line 7.3. The load of numerical simulation include high water head, conventional weapons exploded, nuclear weapons exploded. Through analyzing the stress and deformation of the metro flood gate structure, theoretical references are provided for the designing and selection of the flood gate system.There are few researches at home according to the study above, so the result of this paper can give a reference function for the tunnel in Chengdu and our country and the setting of anti-flood airtight partition door system.