Monitoring And Analysis Of Blasting Vibration In Sijiaying Iron Mine

The blasting vibration produced by bench deep hole blasting in Sijiaying Iron Mine has a certain impact on the surrounding people,and the blasting vibration has a great impact on the stability of the rock mass structure of the east side of the bedding rock layer,which may cause landslides in serious cases.Due to the great changes in the current situation of mine production,the propagation law of blasting vibration has also changed greatly.In order to solve the problem of disturbing people by blasting vibration and control the damage of blasting vibration to the final side wall.It is necessary to monitor the blasting vibration of sikaying iron mine,obtain the blasting vibration data and propagation law,and apply the law to study the technical measures to reduce the blasting vibration.Taking the blasting vibration of sikaying iron mine as the research object,based on the monitoring data of blasting vibration on site,the propagation law of blasting vibration is studied.The research work mainly includes: real-time monitoring and data collection of blasting vibration on the west side and east side slope of the stope;regression analysis on the field monitoring data;derivation of the attenuation formula of response blasting vibration under geological conditions,and analysis on the attenuation law of peak vibration speed and main frequency of the mass point,the results show that the dimension analysis method is used to monitor the blasting vibration number.According to the analysis error less than the empirical formula,the safe allowable vibration speed of residential area and final side wall of the stope is determined,and the safe area of blasting vibration is delimited,and the experimental research on reducing blasting vibration by presplitting blasting in bench side blasting is carried out.Figure 49;Table 40;Reference 40...