摘要
运用有限元软件模LS-DYNA拟弹体在不同地质条件下的边坡爆炸过程,对花岗岩、白云岩和大理岩三种类型的边坡在同等炸药爆炸条件下形成的落石速度进行了对比分析,模拟结果表明,不同性质的岩石边坡形成的爆炸落石速度变化过程和破坏区内速度分布具有一致性,但落石的抛掷速度大小差异很大。
LS-DYNA is applied to simulate the explosion process of rock slope in different geological condition, and the velocities of rock-fall formed in the granite slope, dolomite slope and marble slope under the same explosive condition are analyzed. The results of numerical simulations show that the variation process and distribution regulation of rock-fall velocity in different rock slope are the same, but the tossed velocity of rock-fall is different.
出处
《煤矿爆破》
2009年第3期5-8,共4页
Coal Mine Blasting
基金
总后基建营房部资助项目
关键词
地质条件
落石速度
数值模拟
geology condition
rock-fall velocity
numerical simulations
