Earticle

초록

영어

A numerical simulation on the 3D compressible viscous unsteady flow field induced by a high-speed subway train, while it’s passing by the platform screen door of subway station, is presented in the paper. The research on transient pressure in tunnel due to changes of positions of platform screen door is proceeded in order to design platform screen doors for underground stations of Dong-guan to Huizhou inter-city rail traffic. Result shows that the platform is subjected to aerodynamic compression and tension cycle loads all the time. And compression load is larger than tension load. The maximum and minimum pressure values in absolute terms got from measuring points of the whole station decrease gradually along the direction train going ,no matter whether the platform screen door is fixed or not. The absolute values of maximum and minimum pressure of piston wind generated at platform screen door are decreasing while the spacing between platform screen door and platform becomes wider. The pressure value of air at exit is larger than that of air at entrance. As for a high-speed subway station, it is a practicable way to set air shafts at entrance and exit of station to mitigate pressure of air in station and tunnel. The pressure value of air could have a 10 to 15 percent reduction if there is an air shaft. Besides, the platform screen door can be installed in half tall of PSD.

목차

Abstract
 1. Introduction
 2. Control Equation
 3. Basic Conditions and Calculation Method
 4. The Calculation Results and Analysis
  4.1. The Effect of Pressure Changes in Tunnel Pulling Section
  4.2. Pressure Changes in Tunnel Cavity that Within the Scope of Station Screen Door Section
  4.3. Pressure Changes in Station Exit Section Tunnel
  4.4. The Maximum Regulation of Pressure Change at Each Measuring Point Within the Scope of the Station
  4.5. Change of the Piston Wind at the Location of Station Screen Door
  4.6. The Decompression Effect of Air Vents on Both Ends of the Station
 5. The Conclusions and Suggestions
 Acknowledgments
 References

키워드

저자

• Luo Jian-jun [ Tunnel and Underground Engineering Research Center of Ministry of Education, Beijing Jiaotong University, Beijing, China, Beijing’s Key Laboratory of Structural Wind Engineering and Urban Wind Environment; School of Civil Engineering, Beijing Jiaotong University, Beijing P. R. China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Signal Processing, Image Processing and Pattern Recognition

• 간기

  격월간

• pISSN

  2005-4254

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605