Safety assessment and parameter optimization of shaft blasting
Zhaoshipan Coal Mine is an integrated supporting coal mine of Zhaoshipan Coal and Electricity.The coal mine and the power plant are arranged in the same industrial square.Because the power plant is built and put into operation be-fore the coal mine,in order to prevent the vibration generated by the blasting excavation of the coal mine shaft from affecting the surrounding buildings and power plant equipment,through the combination of field monitoring and theoretical analysis,it is concluded that the medium parameters related to blasting geology are 162,and the attenuation index of blasting seismic wave is 1.84.On this basis,the vibration velocity of the shaft at different distances and different doses is obtained,and the safety of blasting design parameters is determined.In view of the problems in the existing design and the larger surplus coef-ficients,the blasting parameters are optimized,which significantly improves the scientific nature of wellbore blasting.
integration of coal and electricityborehole blastingpowder chargevibration speed
万方数据
维普
