公路隧道环境二氧化碳的运移机理及计算方法研究  

Study on Diffusion Mechanism and Calculation Method of Environmental Carbon Dioxide in Highway Tunnel

作　　者：王蕾 韩兴博[2] 夏永旭[1] Wang Lei;Han Xingbo;Xia Yongxu(Shaanxi Polytechnic Institute,Xianyang,712000;Chang'an University,Xi'an,710064)

机构地区：[1]陕西工业职业技术学院,咸阳712000 [2]长安大学,西安710064

出　　处：《制冷与空调（四川）》2022年第6期909-913,共5页Refrigeration and Air Conditioning

基　　金：中央高校基金项目(公路隧道衬砌劣化模型与预防性养护策略研究,300102210124);宁波市公益类科技计划项目(隧道结构服役状态评价及集约化养护决策研究,2021S191);陕西工业职业技术学院院级科研项目(公路隧道运营环境特征及衬砌结构碳化耐久性研究,2022YKYB-020)。

摘　　要：隧道内外环境参数差异较大,以普通大气环境CO_(2)浓度进行隧道衬砌碳化耐久性设计存在明显不足。针对隧道特殊运营环境,以公路隧道环境CO_(2)作为研究对象,基于公路隧道机动车污染物扩散理论,分析了隧道环境CO_(2)浓度影响因素和扩散规律,建立了公路隧道中CO_(2)的对流扩散模型,给出了一种纵向通风隧道CO_(2)浓度的计算方法,并进行了实例验证。Due to the large differences of environmental parameters inside and outside the tunnel,there are obvious deficiencies in the carbonation durability design of tunnel lining based on the CO_(2) concentration of ordinary atmospheric environment.Aiming at the special operating environment of tunnel,based on the theory of vehicle pollutant diffusion in highway tunnel,this paper takes the CO_(2) in highway tunnel environment as the research object,and analyzes the influencing factors and diffusion laws of CO_(2) concentration in tunnel environment.The convection diffusion model of CO_(2) in highway tunnel is established,and a calculation method of CO_(2) concentration in longitudinal ventilation tunnel is given.Finally,this paper is verified by an example.

关 键 词：公路隧道 CO_(2)浓度 扩散方程 计算模型 

分 类 号：U451.4[建筑科学—桥梁与隧道工程]