【摘要】 运用LS-DYNA3D程序对不同药量和场地条件下水下炸礁的爆破过程进行了数值模拟,给出了质点振动速度、加速度衰减规律;另外,模拟得出的爆炸地震加速度时程可作为工程结构响应计算时的激励,克服了爆炸地震波激励难以确定的困难,为爆炸地震波对工程结构的影响效应研究及计算方法提供了一定的参考。更多还原

【Abstract】 By using the LS-DYNA3D software,the numerical simulation is realized,which displays objectively the explosion process in reef,under different explosions and ground conditions.The decaying rule of blasting velocity and acceleration are given.In addition,the simulative seismic acceleration can be used to calculate the response of structures.It solves the problem that blasting seismic wave is not easy to ascertain.The simulation is advantageous for studying the effect of blasting wave’s effect on structures and calculating method.更多还原