阳江核电站负挖爆破地震波衰减参数的回归分析与研究

以阳江核电站一期第三层负挖为背景，在前两层负挖的基础上，对测得的振动加速度数值进行了回归，得到该地段的地震波衰减参数K和α；对20m和40m边坡加速度的关系进行了分析，发现两者与爆心均不呈线性关系；分析比较了深、浅孔爆破与预裂爆破因为爆破方式的不同在地震波衰减参数K和α的差异。

Regression and Analysis for Attenuation Parameters of Blasting Seismic Wave in Negative Digging at Yangjiang Nuclear Power Station

On the basis of the negative excavating and its blasting of the third floor in the first-stage project at Yangjiang Nuclear Power Station and its field tese, the measured vibration acceleration values is regressed, and the attenuation parameters of blasting seism wave （K and α）in this region are obtained. After analyzing the vibration intensity of the slope the relationship between in 20m away and in 40m away, it is found that each of them is not in a linear relation, and the differences of the attenuation parameters of blasting seism （ K and α） in pre-splitting blasting and deep/shallow bore blasting are studied.