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| Research on the Problem of Transient Pressure in Tunnel of China's Double Track Railway with the Trains Being Speed up and its Reduction Measures |
| YANG Bin, XIE Jin-bao, YU Li-ying |
| Lanzhou JiaoTong University, Lanzhou, Gansu 730070, China |
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Abstract Research purposes: According to the calculation, this paper analyzed the transient problem of existing double-track tunnel and put forward the reduction measures.
Research methods: Take the double-track tunnel in the Lanzhou-Wunan for example，the relation graph of train speed and maximum pressure has been simulated and figured out with the formula.
Research results: The result of calculation indicates that transient pressure on the tunnel of Shanggulangxia cannot reach the standard of comfort while traveling speed is over 145 km/h.
Research conclusions: With the trains’ being-speed up, the transient pressure of double-track tunnel in the existing railway cannot reach the standard of comfort. In the future construction, we should take active or passive reduction methods according to the specific situation.
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Received: 07 June 2006
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Dayman B and Vardy A. E. Alleviation of tunnel air pressure transients-1 experimental program[A]. proc 3rd Int Symp on the aerodynamics and ventilation of vehicle tunnels[C]. Paper H2, BHRA, Sheffield, UK, March, 1979.
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Fox J. A. and Henson, D. A: The prediction of the magnitudes of Pressure transients generated by a train entering double tunnel Proc[J]. Inst. Civil Eng. 1971(49):53-69.
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王建宇.列车通过隧道时诱发的空气动力学问题和高速铁路隧道设计参数[J].隧道译丛, 1995(1):3-13.
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2006, Vol. 23 
