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.
杨斌，谢金宝，于丽颖. 双线隧道提速后的瞬变压力及缓解措施[J]. 铁道工程学报, 2006, 23(8): 73-75.
YANG Bin, XIE Jin-bao, YU Li-ying. 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. 铁道工程学报, 2006, 23(8): 73-75.
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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2006, Vol. 23 
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