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从地震波形成过程与机理出发,研究其作用在大块孤石和岩壁两种目标所形成的地震波传播规律。通过对不同测点的震动进行监测,由对震动速度时程曲线分析可知,串联聚能战斗部的爆破震动主要由前级装药爆炸引起,震动强度衰减规律可用萨道夫斯基公式预测。对两种目标进行爆破试验可得:爆破作用目标不同,用于产生地震波的爆炸能也不同,作用目标为岩壁时,产生的地震波能量比作用目标为大块孤石时多;震动持续时间与爆心距的关系式也不同;从频率的角度分析,爆破岩壁比爆破大块孤石所产生的地震波对建构筑物的危害更大。
Based on the formation process and mechanism of seismic wave, the propagation of seismic waves formed by two targets of large boulders and rock walls is studied. Through the monitoring of the vibration at different measuring points, it can be seen from the analysis of the time history curve of vibration velocity that the blasting vibration of the tandem converging warhead is mainly caused by the charge explosion at the front stage. The attenuation law of the vibration intensity can be predicted by the Sadowssky formula. Blasting tests on the two targets show that the targets of blasting are different and the explosion energy used to generate the seismic waves is also different. When the target is the rock wall, the seismic wave energy generated is more than that when the target is large boulders; the duration of vibration And the relationship between the burst center distance is also different; from the frequency point of view, blasting rock wall blasting than the large boulders produced by seismic waves on the building more harmful.