Modification of Surface Velocity Calculation Formula in Tunnel Blasting
The blasting vibration in Qingdao Cross-harbor Tunnel Guide Line Project is monitored and analyzed. We discover that the surface particle vibration velocity in the range of 5metres around the working face reduces fast, and that does not conform to Sadaovsk formula. This inquiry adopts the hypothesis-fitting-testing method to modify Sadaovsk formula. The empirical formula of the ground vibration velocity caused by blasting in tunnel is obtained.
Jianmin Zeng, Zhengyi Jiang, Taosen Li, Daoguo Yang and Yun-Hae Kim
H. L. Wang et al., "Modification of Surface Velocity Calculation Formula in Tunnel Blasting", Advanced Materials Research, Vols. 199-200, pp. 882-885, 2011