基于代偿理念的公路隧道互补式通风适用性研究  

Study on the Applicability of Complementary Ventilation in Highway Tunnel Based on Compensation Concept

作　　者：王永东[1] 薛威 王杰[1,2] 胡志豪 任雨桐 Wang Yongdong;Xue Wei;Wang Jie;Hu Zhihao;Ren Yutong(School of Highway,Chang'an University,Xi'an 710064,P.R.China;Liaoning Provincial Transportation Planning and Design Institute Co.,Ltd.,Shenyang P.R.China)

机构地区：[1]长安大学公路学院,西安710064 [2]辽宁省交通规划设计院有限责任公司,沈阳110000

出　　处：《地下空间与工程学报》2025年第2期730-738,共9页Chinese Journal of Underground Space and Engineering

基　　金：中央高校基本科研业务费资助项目(300102214902);陕西省交通运输科技项目(22-50K)。

摘　　要：双洞互补式通风常应用于左右线通风负荷比过大的隧道。为进一步提升其在公路隧道纵向通风节能方面的优势,在双洞互补式通风的基础上,结合代偿理念对互补式通风需风量计算进行优化,修正总需风量计算公式。从需风量和通风负荷比的角度对基于代偿理念的互补式通风的适用性进行研究,将隧址温度和海拔高度、隧道长度和坡度、隧道交通量和大型车比例等因素对互补式需风量和代偿互补式需风量的影响进行对比分析。结果表明:修正后的代偿互补式需风量计算方法具有显著优势,海拔高度的提高会降低该计算方法的优势;当隧道长度大于4000 m、隧道坡度大于1.5%时,采用基于代偿理念的双洞互补式通风更经济实用;当隧道交通量在25000 pcu/d~30000 pcu/d之间,大型车比例不低于35%时,或隧道交通量大于30000 pcu/d,大型车比例不低于25%时,宜采用基于代偿理念的双洞互补式通风。Twin-tube complementary ventilation is often used in tunnels where the ventilation load ratio of the left and right lines is too large.In order to further improve its advantages in the longitudinal ventilation energy saving of highway tunnels,based on the twin-tube complementary ventilation,combined with compensation concept,the complementary ventilation required ventilation volume was optimized,and the calculation formula of the total required ventilation volume was modified.The applicability of complementary ventilation based on compensatory concept was studied from the perspective of required ventilation volume and ventilation load ratio,the effects on the complementary required ventilation volume and compensatory complementary required ventilation volume were investigated and analyzed in terms of the influence factors,such as altitude,temperature,tunnel length,longitudinal slope,traffic flow,traffic composition and interval between the two tubes.The results show that:The modified compensatory complementary required ventilation volume calculation method has significant advantages,and the advantages of this calculation method will be reduced with the increase of altitude;it is the more economic way to apply the compensatory complementary ventilation system in twin-tube tunnels with lengths are greater than 4000 m and slopes are greater than 1.5%.It is suitable to adopt twin-tube complementary ventilation based on compensation concept when the tunnel traffic volume is between 25000 pcu/d and 30000 pcu/d,the proportion of large vehicles is not less than 35% or the tunnel traffic volume is greater than 30000 pcu/d,the proportion of large vehicles is not less than 25%.

关 键 词：公路隧道 代偿理念 互补式通风 适用性 需风量 

分 类 号：U453[建筑科学—桥梁与隧道工程]