带有上盖物业开发的市域铁路地下停车场消防排烟系统设计研究

Research on Fire-Fighting Smoke Exhaust System Design of Suburban Railway Underground Parking Lot with Upper Property Development

针对目前带有上盖物业开发的市域铁路地下停车场防排烟设计无明确规定问题,以某地市域铁路地下停车场为工程案例,采用FLUENT数值模拟技术对地下停车场内根据现行规范难以确定火灾危险性的存车库的排烟系统进行特殊消防设计验证和优化升级,首次创新性提出“类隧道”排烟概念,以最大限度降低火场温度和烟气浓度,维持一定的视距,保障灾后救援工作顺利进行,并为后期类似工程的系统设计提供参考。

For the problem that there is no clear regulation on fire-fighting smoke exhaust design in underground parking lot of suburban railway with upper property development,taking the suburban railway underground parking in a city as the project example,using FLUENT numerical simulation technology,the special fire-fighting design of smoke exhaust system in the parking garage of underground parking lot is validated and optimized,where it is difficult to determine fire risk according to the current specification.For the first time,the concept of“tunnel-like”smoke exhaust is innovatively proposed to minimize the temperature and smoke concentration in the fire site,maintain a certain visual distance,ensure the smooth progress of post-disaster rescue work,and provide a reference for the system design of subsequent similar projects.