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(사)한국터널지하공간학회

ISSN : 2233-8292

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Vol.16 No.2
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A study on the characteristics for aerodynamics at high speed in railway tunnels - focused on the micro pressure wave

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2014, v.16 no.2, pp.249-260
https://doi.org/10.9711



& (2014). A study on the characteristics for aerodynamics at high speed in railway tunnels - focused on the micro pressure wave. (사)한국터널지하공간학회, 16(2), 249-260, https://doi.org/10.9711
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Abstract

When a train enters the tunnel at high speed, the pressure wave occurs. When this pressure wave reaches at the exit of tunnel, some are either emitted to the outside or reflected in tunnel by the form of expansion wave. The wave emitted to the outside forms the impulsive pressure wave. This wave is called 'Micro Pressure Wave'. The micro pressure wave generates noise and vibration around a exit portal of tunnel. When it becomes worse, it causes anxiety for residents and damage to windows. Thus, it requires a counterplan and prediction about the micro pressure wave for high speed railway construction. In this paper, the effects of train head nose and tunnel portal shape were investigated by model test, measurement for the micro pressure wave at the operating tunnel as well as numerical analysis for the gradient of pressure wave in the tunnel. As results, a method for predicting the intensity of the micro pressure wave is suggested and then the intensity of the micro pressure wave is analyzed by the tunnel length and the cross-sectional area.

keywords
고속열차, 철도터널, 압력변화, 미기압(MPW), 공기역학, High-speed train, Railway tunnel, Pressure change, Micro pressure wave, Aerodynamics

Reference

1.

1. Bannister, Mucklow. (1948), “Wave action following sudden release of compressed gas from a cylinder”, Proc. Inst. Mech. Eng., Vol. 159, No. 42, p. 269.

2.

2. Pope, C.W. (1975), “Transient pressures in tunnels – a formula predicting the strength of the entry wave produced by trains with streamlined and unstreamlined noses”, British Railways Research and Development Division Tech. Memo. Aero 12.

3.

3. Ozawa, S. (1979), “Studies of micro-pressure wave radiated from a tunnel exit”, Railway Technical Research Report of Japanese National Railways, No. 1121, pp. 1-92.

4.

4. Matsuo, K., Aoki, T., Kashimura, H., Kawaguchi, M., Takeuchi, N. (1991), “Attenuation of compression waves in a high-speed railway tunnel simulator”, 7th international Symposium on AVVT, pp. 239-252.

5.

5. Ozawa, S., Maeda, T., Matsumura, T., Uchida, K., Kajiyama, H., Tanemoto, K. (1991), “Countermeasures to reduce micro-pressure waves radiating from exits of shikansen tunnels”, 11th international Symposium on AVVT, pp. 253-266.

6.

6. Matsuo, K., Aoki, T., Kashimura, H. (1994), “Generation mechanism of impulsive wave emited from high-speed railway tunnel exit”, 8th international Symposium on AVVT, pp. 199-209.

7.

7. Matsuo, K, Aoki, T., Mashimo, S., Nakatsu, E. (1997), “Entry compression wave generated by a high-speed train entering a tunnel”, 9th international Symposium on AVVT, pp. 925-934.

8.

8. Wu, D. (2000), “Prediction of pressure wave generation by high-speed train entering tunnel using a commercial CFD code – a simplified approach”, 10th international Symposium on AVVT, pp. 767-777.

9.

9. Ozawa, S., Murata, K. (2000), “A pressure wave emitted from openings of tunnel wall”, 10th international Symposium on AVVT, pp. 757-765.

10.

10. Wu, D., Chiu, T. (2003), “Aerodynamic aspects of a high-speed railway station with adjoining tunnels”, 11th international Symposium on AVVT, pp. 715-725.

11.

11. Ozawa, S. (2003), “Countermeasures for reducing micro-pressure wave at the stage of propagation of the compression wave through a tunnel”, 11th international Symposium on AVVT, pp. 389-402.

12.

12. Herb, J., Deeg, P., Tielkes, T. (2003), “Assessment of possible sonic boom effects in German highspeed railway tunnels – experimental and numerical data for the wave steepening process”, 11th international Symposium on AVVT, pp. 775-782.

13.

13. Fukuda, T., Miyachi, T., Iida, M. (2006), “Propagation of compression wave in a long slab-tracked tunnel and ballast-tracked tunnel”, 12th international Symposium on AVVT, pp. 777-788.

14.

14. Vardy, A.E. (2008), “Generation and alleviation of sonic booms from rail tunnels, proc. of the institution of civil engineers”, Engineering and Computational Mechanics, pp. 107-119.

15.

15. Kim, H.D. (1994), “Wave phenomenon in highspeed railway tunnel”, Korean Society of Mechanical Engineers, Vol. 34, No. 10, pp. 796-807.

16.

16. Bumchang, Eng. (2007), Basic design of highspeed railway construction project in Ho-nam line - verification report based on the tunnel crosssection, pp. 86-87.

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