关于对公路隧道集中排烟量计算的思考

Reflection on Calculation of Centralized Smoke Exhaust in Road Tunnel

相比于山岭或陆地区域隧道,超长区段、超大断面水下公路隧道对通风排烟系统的合理设计提出了更高的要求,其中关于火灾热释放率的设计取值和集中排烟量的计算等问题更是存在一定的争议。介绍了水下公路隧道集中排烟量的计算差异,对相关行业标准和相关参考规范进行了分析。

Compared with tunnels in mountainous or land areas,there are higher requirements on the ventilation and smoke exhaust system for underwater road tunnels with extra-long interval and super-large cross-section.And there are even different views on such issues as the design value of fire heat release rate and the calculation of concentrated smoke exhaust volume.The differences in the calculation of concentrated smoke exhaust volume of underwater road tunnel are introduced,and the analysis is made to the relevant industry standards and reference codes.