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通常在地形变化较大的情况下,萨道夫斯基公式不能完全反映爆破地震波的传播规律。对30°正负高差直面边坡地形爆破振动速度衰减进行试验,结果表明,随着与爆源距离的增加,爆破振动速度逐渐减小;相对于水平地形,正高差地形减缓爆破振速的衰减,负高差地形加快爆破振速的衰减;直面边坡不会引起振速的突然增大或减小;同时,对于正负高差地形,高程修正公式比萨道夫斯基公式预测爆破振速精度更高,平均预测精度提高了9.86%。
Generally, when the terrain changes a lot, the Sadovski’s formula can not fully reflect the propagation law of blasting seismic waves. The results show that the blasting vibration velocity decreases with the increase of the distance to the blasting source. Compared with the horizontal terrain, the elevation relief reduces the blasting vibration velocity Attenuation and negative elevation terrain to speed up the attenuation of blasting vibration velocity; Facing the slope will not cause the sudden increase or decrease of the vibration velocity; Meanwhile, for the positive and negative elevation difference terrain, the elevation correction formula Porsadovsky Formula predicts the blasting vibration velocity The accuracy is higher and the average prediction accuracy is improved by 9.86%.