Research on the Safe Lighting of Minor Radius Curve Spiral Tunnels

Abstract:

Abstract: Based on the engineering background of Sichuan Ganhaizi spiral tunnel, this thesis studied the surrounding environment of portal and simulated the whole portal section, and then analyzed the effect of natural light on the portal illumination at different times. With the research on the brightness reduction and human eyes’ adaptation to it, the thesis calculated the discount rate k and obtained the requirements of vehicle speed at Ganhaizi tunnel entrance. Finally, the thesis put forward that some light reduction facilities such as vegetation outside the portal should be used, and on a clear day, from 12:00 to 15:00, the uphill tunnel portal illumination is significantly higher than other sections, thus at this time artificial lighting should be used to modulate entrance lighting.

• Periodical: Applied Mechanics and Materials (Volumes 99-100)
• Pages: 358-365
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.99-100.358
• Online since: September 2011
• Authors: Li Xin Fu, Hui Ren, Jian Hua Wang, Tian Le Zhang
• Keywords: Lighting, Spiral Tunnel

References

[1] CIE. Recommendations for the lighting of roads for motor and pedestrian traffic[R]，1995，115．

[2] Lighting Applications-Tunnel Lighting．CEN report，No CR14380:2003．

[3] Liu Bin, WANG Ai-ying, Qin Xin. Introduction and comparison of common lighting design and software, Light and Lighting, 29 (3), 2005 - 09.

[4] Ministry of Transport of the People's Republic of China. Specifications for Design of Ventilation and Lighting of Highway Tunnel(JTJ026．1-1999)[S]．Beijing: China Communications Press, 1999.

[5] Xiang Xiao-qiang, Wu De-xing, Lee Yu-wen. Researching on Analysis of Road and Tunnel Lighting (R & TLAS) System. Highway, October 1999, No. 10.

[6] Qu Zhi-hao, Zhao Qing-bi, Liu Xiang-hua. Tunnel Ambient Exterior Luminance L20 (S) Tested by Environmental Sketch Method. TECHNOLOGY OF HIGHWAY AND TRANSPORT, October 2004, No. 5.

[7] Tu Yun, Wang Xiao-jun, Zhou Jian. Study on Brightness L20(S) outside of Expressway Tunnel in Fujian Province. TECHNOLOGY OF HIGHWAY AND TRANSPORT, 2007, (z1).

[8] Du Zhi-gang, Pan Xiao-dong, Guo Xue-bin. Visual Adaptation Index for Driving Safety at Entrance and Exit of Highway Tunnel. JOURNAL OF SOUTH CHINA UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE EDITION, 35（7）, 2007-07.

[9] Zheng Huan, Wang Meng-shu. The Disscussion on The Evaluation Index System of Tunnel Lighting, November 2007 No. 11.

[10] Ma Yu-cheng, Ling Qi, Guo Zhong-Yin. Safety Operating Speed and Control Measure Based on Lighting Transition to Tunnel Entrance. JOURNAL OF SHANDONG JIAOTONG UNIVERSITY, 15(1),2007-03.