列车风对寒区运营期隧道温度场影响分析  

Analysis of Influence of Train Wind on Tunnel Temperature Field during Operation in Cold Region

作　　者：娄西泽 LOU Xi-ze(China Railway 19th Bureau Group Sixth Engineering Co.,Ltd.,Wuxi 214028,China)

机构地区：[1]中铁十九局集团第六工程有限公司,无锡214028

出　　处：《价值工程》2024年第36期120-123,共4页Value Engineering

基　　金：中铁十九局集团有限公司科技发展计划(22-B07)。

摘　　要：随着我国交通事业的快速进步,高海拔隧道的建设数量持续增长。为了有效减轻隧道运营期间冻害造成的不利影响,对尚山隧道实施了气象监测,考虑自然风与列车风同向和反向两种情况,通过数值模拟对比分析不同列车运行频率下列车对隧道洞内纵向温度场的影响情况。结果表明,当列车活塞风与自然风方向相同时,洞内温度场在列车驶离后出现了显著降低;当列车活塞风与自然风方向相反时,洞内温度场在列车驶离后逐渐恢复至初始状态。相较于无列车通行时的温度场,通车后洞内温度场发生了显著的降低;而不同列车通行频率下对洞内温度场的影响并未表现出显著的差异。With the rapid advancement of transportation in China,the quantity of high-altitude tunnel constructions has been constantly increasing.To effectively mitigate the adverse impacts caused by frost damage during tunnel operation,meteorological monitoring was implemented for the Shangshan Tunnel,considering both the concurrent and opposite directions of natural wind and train wind.The influence of different train operation frequencies on the longitudinal temperature field within the tunnel was comparatively analyzed through numerical simulation.The results indicate that when the train piston wind is in the same direction as the natural wind,the temperature field within the tunnel drops significantly after the train departs.When the train piston wind is in the opposite direction of the natural wind,the temperature field within the tunnel gradually reverts to the initial state after the train leaves.The temperature field within the tunnel significantly decreases compared to the initial temperature field when there is no train passage.However,the influence of different train passage frequencies on the temperature field within the tunnel does not exhibit significant differences.

关 键 词：寒区隧道 温度场 温度实测 数值分析 

分 类 号：U451[建筑科学—桥梁与隧道工程]