晋阳高速公路隧道通风系统改造与效果分析

Reconstruction and Effect Analysis of Ventilation System of Jinyang Expressway Tunnel

晋阳高速公路隧道通风系统经多年运营使用后,运行效果已不能满足通行要求,亟需进行升级改造。根据晋阳高速公路隧道通风系统调查结果,分析制定方案进行改造升级。为检验改造后隧道通风效果,选取最长的牛王山隧道作为研究对象,对隧道内的风速、CO浓度、Ⅵ浓度进行监测,分析得出隧道内风速最大值和最小值分别为5.89 m/s和3.73 m/s,CO浓度最大值为43 cm^(3)/m^(3),Ⅵ浓度最大值为0.0032 m^(-1),均满足设计与规范要求,达到了预期的通风效果。

After years of operation and use,the ventilation system of Jinyang Expressway Tunnel cannot meet the requirement of traffic and need to be upgraded.According to the survey result of the ventilation system an upgrading and reconstruction plan is developed.In order to test the ventilation effect of the tunnel after reconstruction,selecting the longest Niuwangshan Tunnel as the study objective to monitor the wind speed,CO concentration and Ⅵ concentration in the tunnel.The analysis results showed that the maximum and minimum wind speed in the tunnel were 5.89 m/s and 3.73 m/s,respectively,and the maximum CO concentration and Ⅵ concentration were 43 cm~3/m~3and 0.0032 m^(-1),which all met the requirements of the design specification and reached the expected ventilation effect.