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针对平面装药爆破中提高爆破能量有效利用率的问题,根据有限元软件ANSYS/LS-DYNA,动态模拟平面装药的爆轰传播过程.从应力云图与速度-时间历程曲线,探索平面装药爆轰方向对爆炸应力和震动速度的分布情况.通过对爆轰正、反方向的曲线作对比,在爆破地震反应谱基础上分析平面药包爆后在地面结构产生的震动效应的分布影响情况,得出在平面装药爆破中可以通过爆轰方向来控制爆炸能量分布的结论.“,”Aimed at the question that how to increase coefficient of utilization of blasting energy in the plane charge blasting, the dynamic simulation of propagation process in the plane charge blasting had been dynamically simulated based on the finite element software ANSYS/LS-DYNA. From the stress nephogram and velocity-time curves, the article had explored distribution of explosion stress and vibration velocity affected by plane charge blasting directions. Through the comparison between blasting curves in the positive and negative directions, and analyzing the distribution effects of ground structure vibration based on the blasting earthquake response spectrum after the plane charge blast, and a conclusion that blasting energy distribution could be controlled by the blasting direction in the plane charge blasting was drew.