Study on the vibration reduction effect of combined vibration reduction method of blasting vibration
In order to analyze the vibration reduction effect of presplitting blasting+damping ditch combination vibration reduction method,LS-DYNA software is used to carry out numerical simulation of single presplitting blasting and presplitting blasting+damping ditch combination vibration reduction method respectively,and it is concluded that the presplitting blasting+damping ditch combination vibration reduction method is better than the single presplitting blasting vibration reduction effect,and the maximum difference ratio can reach 61％.Secondly,the blasting vibration field monitoring test is carried out to demonstrate the correctness of the conclusions drawn from the numerical simulation.Finally,it is concluded that the combination of presplitting blasting and damping ditch has better vibration reduction effect.The selection of vibration reduction measures should be comprehensively analyzed in combination with geological conditions,actual working conditions and the requirements of surrounding protected objects.
万方数据
维普
