Study Of Load Changes And Blasting Vibration Model Of Open Pit Slope

Along with the application of blasting technology in open pit mining,the blasting vibration effect of mine rock mass slope stability influence is more and more get the wide attention of scholars both at home and abroad.The blasting vibration in the form of seismic wave propagation,some evolution when effect on the slope.In order to study the frequency of blasting vibration attenuation law,enable us to better understand and predict frequency characteristic and control blasting region and make good use of this law,the article combined with the blasting vibration test in the zhahanuer open pit mine, Huolinhe,Inner Mongolia understand the arrangement of blasting area,at the same time of blasting vibration monitoring,sort out the area of the torque and the blasting center frequency at a mathematical relationship is obtained by our range of mathematical relationship can get near a little parameters such as amplitude and frequency.Finally,four groups of data fitting can be concluded that the site general mathematic relations,Have certain representativeness.To study the change rule of blasting load on the slope,first response to the load on the slope monitoring, then according to the related scientific knowledge and on the slope acceleration data measured point,to organize and then analyzed the change law of the acceleration, through the change rule, and in line with the actual situation of mechanics model is set up.At last, according to the theory of the established model and load on the slope of the change rule and the results of Flac3D to simulate slope destruction form compare our conclusion finally,we also verified the correctness of the model and the load change.