综合管廊各类灭火系统的应用分析与再思考

对综合管廊目前常见的水喷雾、细水雾、气体灭火、气溶胶及超细干粉等多种消防灭火系统的优缺点进行比较，讨论了各系统的使用条件和适用范围，并介绍了部分管廊工程的应用情况；同时提出对于一般支线管廊或者建设尚不完善的管廊，可根据其经济条件分步建设，先设置手动、半固定式或者局部灭火系统，待条件成熟后再进一步改造升级。

Discussion on the applicability of various fire Extinguishing modes in utility tunnel

The advantages and disadvantages of various automatic fire extinguishing methods, such as water spray, water mist, gas fire extinguishing,aerosol, super fine dry powder system and local application mode, were compared systematically. The application conditions and scope of each system were discussed, and some application cases of fire-extinguishing system used in some utility tunnel projects in China were introduced. At the same time, it is proposed that the general branch or the imperfect pipe tunnel can be constructed step by step according to its economic conditions, and the manual, semi fixed or local fire extinguishing system should be set up first, and then further upgrading should be carried out when the conditions are met.