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| IMPLEMENTATION AND VERIFICATION OF SPH-FEM COUPLING BLASTING DAMAGE ANALYTICAL METHOD |
| HU Yingguo1，2，LU Wenbo1，2，CHEN Ming1，2，YAN Peng1，2，LIU Liang1，2 |
(1. State Key Laboratory of Water Resources and Hydropower Engineering Science，Wuhan University，Wuhan，Hubei 430072，China；2. Key Laboratory of Rock Mechanics in Hydraulic Structural Engineering，Ministry of Education，
Wuhan University，Wuhan，Hubei 430072，China) |
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Abstract Comprehensive numerical simulation of rock blasting is always a difficulty and a focus topic of blasting engineering. Based on the secondary development of LS-DYNA，smoothed particle hydrodynamics(SPH) method is implemented into the blasting damage method. Then，a method of SPH used in the near zone and FEM used in the far zone was realized. Dynamic effect of deep hole bench blasting was simulated with this method based on the Specific engineering example. Rock mass cracking and throwing reveals that SPH-FEM method could simulate the large deformation in the near zone. At the same time the comparison between blasting vibration monitoring and results demonstrate that SPH-FEM method could forecast the blasting vibration and dynamic response in far zone. Deformation and damage characteristics of different resistance line of deep hole bench blasting were compared. Research results can provide certain reference for numerical simulation of blasting and blasting crushing mechanism research.
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2015, Vol. 34 
