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| Study on the Adaptability of Effective Cross-section Area of the Tunnel of Beijing-Shanghai High-speed Railway |
| DENG Jie, YU Nan-yang, ZHAO Hai-heng |
| Southwest Jiaotong University, Chengdu, Sichuan 610031, China |
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Abstract Research purposes：The numerical computational method along with one-dimensional, non-constant, compressible flow model and characteristic method were adopted to analyze the adaptability of effective cross-section area of the tunnel with the clear space of 100m2 on Beijing-Shanghai High-speed Railway. The sensibility analyses of transient pressure wave in single line and double line tunnels were made under the different tunnel lengths, train lengths and train speeds.
Research conclusions：Based on the comparative result between of the criterion of permissible pressure wave in China and UIC criterion, the requirement of the sealing time for high running of train in tunnel of Beijing-Shanghai High-speed Railway was presented and the proposal was made that the train speed could be slower than 350 km/h when two trains met in tunnel.
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Received: 17 December 2009
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2010, Vol. 27 
