高寒高海拔螺旋隧道压入式通风风机设计参数研究  

Study on Design Parameters of Press-in Ventilation Fan for High-altitude and High-altitude Spiral Tunnel

作　　者：高峰[1] 唐宇辰 连晓飞 张根思 刘林 GAO Feng;TANG Yuchen;LIAN Xiaofei;ZHANG Gensi;LIU Lin(School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China;CCCC Infrastructure Maintenance Group Co.,Ltd.,Beijing 100011,China)

机构地区：[1]重庆交通大学土木工程学院,重庆400074 [2]中交基础设施养护集团有限公司,北京100011

出　　处：《公路工程》2021年第3期118-122,193,共6页Highway Engineering

基　　金：国家自然科学基金项目(51778095);青海省交通运输厅科技项目(20177)。

摘　　要：高寒高海拔螺旋隧道的施工通风风机设计参数计算方法应与平原区隧道相区别。论文分析了影响高寒高海拔螺旋隧道内风机参数的主要影响因素,在平原常规隧道计算方法上,针对海拔因素和隧道螺旋性等因素,提出适合于高寒高海拔螺旋隧道的施工通风风机设计参数计算方法。并以卧龙沟1号隧道工程为依托,分别计算和对比了平原常规隧道及高寒高海拔螺旋隧道两种环境下隧道的风机设计参数,结果表明:通风机风量需要提升33.3%;风机风压需要提升42.9%;风机功率需要提升115.9%,为确保施工作业环境的安全性,应做出有区别于平原隧道的通风方案。The calculation method for the design parameters of the construction ventilation fan of the high-altitude and high-altitude spiral tunnel should be distinguished from the plain tunnel.Based on the Wolonggou No.1 tunnel project,the paper calculated and compared the fan design parameters of the tunnel under the plain tunnel and the high-altitude and high-altitude spiral tunnel.The results show that the air volume of the fan needs to be increased by 33.3%;42.9%increase;the fan power needs to be increased by 115.9%.In order to ensure the safety of the construction work environment,it is necessary to make enhanced ventilation different from the plain tunnel;the ventilation plan is corrected by considering the factors such as altitude and helicity,and it is suitable for The construction ventilation correction parameter scheme of No.1 tunnel of Wolonggou;in the calculation method of plain tunnel in plain,aiming at the factors of altitude and tunnel helicity,the calculation method of design parameters of construction ventilation fan suitable for high-altitude and high-altitude spiral tunnel is proposed.

关 键 词：高海拔 螺旋隧道 压入式通风 风机参数 

分 类 号：U453.5[建筑科学—桥梁与隧道工程]