装药爆炸后产生地震波并且向周围传播。传播过程中,由于地质构造的变化,地震波的幅值、频率等都会产生一系列变化,而这种变化规律随时间和空间改变,对地面建筑物的安全有着重要影响。根据工程应用的实际需求,借助解析和数值计算相结合的方法,利用计算结果划分了不同的分区,并且求得了一般情况下不同区域的爆破地震幅值的变化规律。
Seismic wave produces and propagates around after blasting. In the course of the propagation, for the change of underground strata, the amplitude and frequency of the seismic wave may vary a lot. And these variations change with time and space, and have great effect on the ground architecture. According to the practical requirement, by analytic and numerical method, some different zones have been mapped out, and the general variation rule in blasting seismic wave has been worked out.