Abstract：Research purposes：According to the difference between the blockage ratios for the train cross-sectional area and the tunnel cross-sectional area, the analysis and calculation are made for the increases of train resistance and heat quantity caused by the aerodynamic effect when train runs through in a long tunnel at the different speeds, and the temperature rising and variations at the different times in tunnel caused by high-speed train running in tunnel are predicted rationally at the different blockage ratios on full consideration to the heat given out by auxiliary equipments and the heat loss during transmission on the wall face of tunnel for the purpose of knowing the thermal and mechanics effects of high-speed train running through a long tunnel.
Research conclusions： The results of calculation and analysis show the resistance change and thermal effect caused by high-speed train running through a long tunnel are more influenced by blockage ratio than train speed. Heating from air conditioning system of train is the main factor for temperature rising in long tunnel. The friction of the tunnel wall can further increase the heating. The train density is a key link to the temperature in tunnel. In railway tunnel with high blockage ratio, there is much heat remained, and more attention should be paid to it.
朱艳峰；吴亚平；杨昌宇；林本涛. 高速列车通过长隧道引起的热、力效应研究[J]. 铁道工程学报, 2010, 27(4): 66-70.
ZHU Yanfeng, WU Ya-ping, YANG Chang-yu, LIN Ben-tao. Study on Thermal and Mechanics Effects of High-speed Train Running through Long Tunnel. 铁道工程学报, 2010, 27(4): 66-70.
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2010, Vol. 27 
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