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- W2357396475 abstract "To overcome the difficulties in simulating accurately the blasting vibration of surrounding rock,an equivalent simulation method was presented.The equivalent elastic boundary subjected to the blasting load was developed for multiple boreholes according to the spatial character of rock damage around boreholes.Blasting loads on the equivalent boundary varying along the borehole axis was calculated theoretically through analyzing the expansion of borehole volume,the development of cracks,the movement of stemming and the outburst of detonation gases.Combined with the blasting excavation of the No.1 tailrace tunnel in Pubugou Hydropower Station,particle vibration velocities in the surrounding rock were simulated by employing this equivalent method based on the dynamic finite element method.The comparison between the simulation results and the monitoring data indicates that this equivalent simulation method is applicable to calculating the response of surrounding rock during blasting excavation;and that the selection of mechanical parameters of the rock near the equivalent elastic boundary has a significant impact on calculation results." @default.
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- W2357396475 date "2012-01-01" @default.
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- W2357396475 title "An equivalent simulation method for blasting vibration of surrounding rock" @default.
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