ANALYSIS OF SMOOTH BLASTING PARAMETERS ON TUNNELS IN SOFT-FRACTURED ROCK MASS
Smooth blasting may bring good blast effects in the case of high-intensity and integrity rock mass. However, it is difficult for smooth blasting to get a good blasting effect in soft-fractured rock mass if conventional methods are used to design parameters, due to a variety of existing weak surfaces. In this paper, for the soft and fractured rock mass, theoretical formula is put forward for designing parameters of smooth blasting based on coupled interaction theory of explosion shock wave and explosive gas-pressure. The proposed formula are validated by comparing with common parameters and local explosion examination. It is concluded that the formula can be applied to smooth blasting in the soft-fractared rock mass achieving good blasting effects.
YU-HUA FU XI-BING LI LEI ZHANG LONG-JUN DONG JUN-JUN WU YU-HUA FU
School of Resources and Safety Engineering, Central South University Changsha, 410083, P.R.China School of Application and Science, Jiangxi University of Science and Technology Ganzhou, 341000, P.R
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
75-80
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）