Research of the Relationship between Hypersonic Changing and Rule of Blasting Vibration Velocity Decayed
In the blasting construction of highway and opencast mining, there are blasting seismic effect on the slope frequently, its a serious damage to rocks stability of the slope. Effect factors the blasting Velocity are: weight of explosive, distance from the explosion, height, the structure of rock, and the character of rock is one essential factor to the decay of vibration velocity. Probing into blast vibration cumulative damage has a great significance. To research the stability and dynamic response slope by the blast vibration. On the precondition of accumulative blasting vibration damage, analyze the changing rule of velocity of the sound wave and the max vibration velocity for rock on the same point before and after blasting. Calculated the coefficient of rock damage from several hypersonic test results, the influencing factor (character of rock) ofsadovki formula would change. Through the calculating and contrasting of the test data, the results show that: Base on the accumulative blasting vibration damage, the blasting vibration velocity has a index decaying in terms of the hypersonic changing. It shows that: combine the hypersonic test and vibration velocity test is a effective way to get the coefficient of the blasting vibration velocity decaying, and it can make a provide a basis on scientific to the plan of blasting construction, either, evaluation of stability of the slope.
blasting vibration hypersonic of rock accumulative damage
FEI Honglu ZHAO Xinpu
Liaoning technical University, Fuxin, China China Academy of Safety and Technology, Beijing, China
国际会议
The Second Asian-Pacific Symposium on Blasting Techniques(第二届亚太地区爆破技术研讨会)
大连
英文
564-567
2009-07-01（万方平台首次上网日期，不代表论文的发表时间）