Study on Blasting Vibration Effects of Shallow Tunnel Excavation

Abstract:

Based on the practice of Huolang-yu tunnel of Mixing road reconstruction, this paper studies the monitoring of ground surface vibration and the technology of controlled blasting. The results show: (1) the ground surface vibration declines from constructed position to non-excavated areas along tunnel excavation direction. (2) The vibration control of wedge cutting holes blasting is the key to reduce or eliminate shallow tunnel vibrating calamity. And the replacement of the multi-stage small wedge cutting holes to the big wedge cutting holes ameliorates blasting vibration and rock fragmentation. (3) The overall monitoring of shallow tunnel blasting vibration and the effects, and optimum of the blasting design not only reduce blasting vibration but also ensure large circulation footage.

• Periodical: Advanced Materials Research (Volumes 250-253)
• Pages: 2366-2370
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.250-253.2366
• Online since: May 2011
• Authors: Wen Xue Gao, Wen Long Sun, Hong Liang Deng, Xi Meng Sun
• Keywords: Blasting Excavation, Monitoring of Blasting Vibration, Shallow Tunnel, Vibration Reduction Technology

References

[1] Xianlin Liu, Chuanbo Zhou, Guosheng Zhang. Blasting, 25(3), p.96~99 (2008), in Chinese

[2] Liping Li, Shucai Li. Rock and Soil Mechanics, 29(8), p.2292~2296 (2008), in Chinese

[3] Nianhua Yang, Zhiyi. Zhang. Journal Of Railway Engineering Society, 1(136), p.82~86(2010), in Chinese

[4] Jichung Zhang, Xiaojun Cao. Chinese Journal of Rock Mechanics and Engineering, 24(22): p.4158~4163(2005), in Chinese

[5] Qing Chen, Hongtu Wang and Guozhong Hu. Rock and Soil Mechanics, 2005(6): p.964~967, in Chinese