双向行车特长公路隧道通风方案网络分析  

Network Analysis of Ventilation Scheme for Extra-Long Two-Direction Road Tunnel

作　　者：曾艳华[1] 胡百万 周小涵[1] 陈中学 刘彦波 

机构地区：[1]西南交通大学交通隧道工程教育部重点实验室,成都市610031 [2]重庆市交通规划勘察设计院,重庆市401121

出　　处：《公路》2013年第2期207-212,共6页Highway

基　　金：教育部创新团队发展计划资助项目;项目编号IRT0955;重庆市交委科技项目资助项目;项目编号2010-2

摘　　要：白芷山隧道是重庆城万二级路上的单洞双向行车隧道,采用平导压入分段纵向式通风。运用通风网络理论,对白芷山隧道进行了开启不同横通道条数的数值模拟,比较了各通风方案的通风能耗及通风网络稳定性。研究结果表明:白芷山隧道开启1条横通道、3条横通道及5条横通道的通风方案相比,开启1条横通道的能耗最大,后两个方案中期能耗分别降低20%、28.5%,远期能耗分别降低25%、40%。但从网络的稳定性分析,开启5条横通道的通风方案的稳定性最差,开启3条其次,开启1条最稳定。综合考虑,白芷山隧道中期和远期均采用开启3号、5号、7号横通道的通风方案。Forced section longitudinal ventilation by parallel heading is adopted for Baizhishan tunnel. It is a single hole and two-direction tunnel on Chengwan secondary road in Chongqing City. Numerical sim- ulations are carried out to compare ventilation energy consumption and network stability with different plans. The research results show that opening one cross passage consumed most energy by means of com- paring with different cross passage opened schemes. Opening three cross passages reduces 20 %, and ope- ning five cross passage reduces 28.5%. Long-term energy consumption of these latter two schemes reduced 25% and 40% respectively. According to network stability, the best scheme is 1 cross passage. The second is 3 cross passages and the worst is 5 cross passages, As a consequence, No. 3,No. 5,No. 7 cross passage scheme should be taken in medium and long term ventilation.

关 键 词：公路隧道 运营通风 通风网络 平导压入分段 纵向式通风 

分 类 号：U453.5[建筑科学—桥梁与隧道工程]