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| 高原区内燃牵引2～4km单线隧道自然通风可行性分析 | |
| 引用本文： | 孙三祥,李国良,余南阳,杨国柱,谢君泰.高原区内燃牵引2～4km单线隧道自然通风可行性分析[J].现代隧道技术,2011,48(5):101-108,114. |
| 作者姓名： | 孙三祥 李国良 余南阳 杨国柱 谢君泰 |
| 作者单位： | 1. 兰州交通大学环境与市政工程学院,兰州,730070 2. 铁道第一勘察设计院,西安,710068 3. 西南交通大学机械工程学院,成都,610031 |
| 摘 要： | 基于关角隧道、羊八井隧道内燃牵引机车有害气体浓度冬季监测结果,以及拉日线隧址区现场风速观测,提出了拉日线隧道外自然风速的建议值。通过对隧道热位差产生的隧道内自然风速的计算,以及隧道内风速和污染物浓度一维非恒定流数值模拟,确定了隧道内自然风速的合理取值,计算了活塞风风速及活塞风长度;分析了拉日线3 000～4 070 m长度隧道全年内可实现自然通风的时段。研究表明,长度3 000 m以下的隧道,运营期间可实现自然通风;长度3 000～4 070 m的隧道采用自然通风,可在远期运行图周期内使有害气体达标。 |
| 关 键 词： | 高原区 内燃牵引 隧道 自然通风 |
Feasibility Analysis of Natural Ventilation of an Internal-Combustion Tract Single-Line Tunnel between 2-4 km in the Plateau Region |
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| Sun Sanxiang,Li Guoliang,Yu Nanyang,Yang Guozhu,Xie Juntai.Feasibility Analysis of Natural Ventilation of an Internal-Combustion Tract Single-Line Tunnel between 2-4 km in the Plateau Region[J].Modern Tunnelling Technology,2011,48(5):101-108,114. | |
| Authors: | Sun Sanxiang Li Guoliang Yu Nanyang Yang Guozhu Xie Juntai |
| Institution: | Sun Sanxiang Li Guoliang Yu Nanyang Yang Guozhu Xie Juntai(1 School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,2 The First Survey & Design Institute of China Railway,Shaanxi Xi'an 710068,3 School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031) |
| Abstract: | Based on monitoring results indicating harmful gas concentrations in the Guanjiao and Yangbajin tunnels along the Qinghai-Tibet railway in winter and the observed wind speed in the tunnel zone of the Lhasa-Rikaze railway,the recommended natural air speed outside of a tunnel is presented.The reasonable natural air speed value inside of a tunnel was determined and the speed and length of piston air were calculated based on calculations of natural wind speeds determined by thermal potential difference in the t... |
| Keywords: | Plateau region Internal combustion traction Tunnel Natural ventilation |
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