【作者】 李胜林； 刘韶华； 刘殿书； 李奎；

【Author】 Li Shenglin~1 Liu Shaohua~2 Liu Dianshu~1 Li Kui~1 (1.School of Mechanics & Civil Engineering,China University of Mining and Technology,Beijing,100083;2.Comprehensive Geological Exploration Bureau of North China Battalion,Hebei Sanhe,065201)

【机构】 中国矿业大学力学与建筑工程学院； 华北有色地质勘查局综合普查大队；

【摘要】 通过对某露天矿的高速摄影测量,分析了高台阶抛掷爆破抛掷速度规律。将岩石运动抛掷过程分为三个阶段:静止阶段、加速阶段和减速阶段,并分析了三个阶段产生的原因;揭示了爆破岩体整体抛掷运动速度规律。对台阶抛掷爆破的生产实践有一定的指导意义。更多还原

【Abstract】 Through the high-speed photography of an open pit measuring,the casting speed law of high bench casting blasting is analyzed.The casting process of rock movement is divided into three stages, stationary phase,acceleration and deceleration phase.Reasons of causing these stages are analyzed as well,and the whole casting speed law of casting rock is revealed.It has a certain guiding significance for the bench casting blasting production practice.更多还原