|Table of Contents|

Study evolvement of high-speed railway tunnel aerodynamic effect in China(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2012年04期
Page:
25-32
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Study evolvement of high-speed railway tunnel aerodynamic effect in China
Author(s):
MA Wei-bin1;  ZHANG Qian-li1;  LIU Yan-qing2
1. Railway Engineering Research Institue, China Academy of Railway Sciences, Beijing 100081, China; 2. Beijing Engineering Consulting Co. Ltd. of CARS, Beijing 100081, China
Keywords:
high-speed railway tunnel;  aerodynamic effect;  real train test;  numerical computation;  model test
PACS:
U459.1
DOI:
-
Abstract:
The research methods of high-speed railway tunnel aerodynamic effect, such as field test, numerical simulation computation and indoor model test, were dissertated. The influence factors of tunnel aerodynamic effect were analyzed. The variation laws of transient pressures in train and tunnel and micro-pressure waves outside tunnel with different velocities, buffer structure setting conditions, the calculating method of additional air resistance in tunnel, the aerodynamic load requirements of tunnel subsidiary facilities, remote testing and control technology in large-scale tunnel, the accurate control method of train passing in tunnel were systematically studied when high-speed train set went through tunnel and rendezvoused in tunnel. Analysis result shows that the aerodynamic effect produced by high-speed train set through tunnel directly affects train security, passenger comfort and tunnel surrounding environment, it is the key technical problem that must be solved in the design of high-speed railway tunnel. Composite comfort and micro-pressure wave standards that are suitable for China are suggested, the researches on micro-pressure wave mitigative measures such as porous energy-absorbing materials, the buffer structure of tunnel hole, decompression shaft, cross-channel design should be carried out. 1 tab, 8 figs, 12 refs.

References:

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Last Update: 2012-08-30