Study On The Analysis Of Slope Stability Induced By Blasting Vibration

Along with the national development of engineering construction field, blasting m-ethod have been widely used in various industries with its convenient,quick,economic advantages, but with the frequent using of blasting method, the blasting scale is more and more bigger, then secondary disasters are also more and more serious, the blasti-ng vibration on the surrounding environment affect more and more urgenter。People w-ill have to face a lot of natural slopes, landslides, artificially slopes, excavation blasti ng vibration and cutting In large project,for example,mining,metallurgy, highway and s-o on,so more researchers have the important guiding significance.In the roles of landsl-ide under dynamic conditions for rules and explore the instability mechanism for cont-rolling blasting harmful.It will be research on the rules of blasting seismic effect of the slope in this stu-dy.But,blasting seimic is very complex,randomness and many factors,which the seismic wave have an high acceleration,large frequency range,short-time and so no.In fact,e-ach parameter of the wave have an different effect and the dynamic instability mecha-nism is also identical too.Generally,there are four damages of the slope. For example crumbling damage, aerosol propellant damage, pull damage and shear damage, of cour-se, for the diversity of slope category, the complexity of the slope mechanism, four d-estroies categories is not absolutely boundaries。FLAC3D has been used extensively in-geotechnical engineering for its advantages.In the study,FLAC D are used to simulate in the different blasting acceleration, different frequency, different time and the minimu-m safety distance, tred to explore the rules of the slope in the blasting vibration,and the relations of the minimum safety distance and the amount of the explosives is obt-ained, comparatived the analysis of these state parameters on the blasting,we can kn-ow that the time of the blasting and the medium is more important for control the b-lasting vibration.With the analysis of the various monitoring curves, we can conclude t-hat the slope are damaged for pulled in the rear and sheared in the front at the far and med areas, through the study can provide some references for landslide governanc-e.