| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for forming a train head portion which significantly reduces a tunnel microbarometric wave by concentrating a cross section of a high-speed train head portion near the center of a tunnel mine mouth. SOLUTION: The method for forming a train head portion for reduction in a microbarometric wave in consideration of a three-dimensional effect concentrates the cross section of the head portion 2 of a high-speed train 1 running in a tunnel 11 having a plurality of lines 7, 8 near the center O of the tunnel mine mouth, thus significantly reducing the tunnel microbarometric wave. COPYRIGHT: (C)2010,JPO&INPIT
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