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PRESENT SITUATION OF STUDY ON JOINTED ROCK MASS BLASTING

Fei Honglu;Duan Baofu;Sun Shukui(Fuxin Mining Institute,Liaoning 123000)  
The present development of study on jointed rock mass blasting by scholars all over the world are described and some common mathematical models are analyzed in this paper.The determination and prediction of blasting fragmentation,computer model simulation and its application are discussed.As the characteristics of jointed rock mass are more complicated and special than common engineering materials,the joints are more important than the physical characteristics of rocks in blasting. So this study has more theoretical and practical significance.Finally,some problems needed to be solved in the future are put forward.
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