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通过在日本的烧岳上上堀泽设置地震计,观测泥石流运动时地基振动特性,建立了波峰振动加速度与波峰流量,振动加速度振幅时间积分与泥石流体积之间的函数关系,并且两两变量之间里拉强的正相关,相关系数分别为0.90和0.98。由此断定:可以通过观测地基振动来推测石砾型泥石流流量或泥沙总输出量。但当振动加速度小于 40 m/s2时,泥石流波峰流量的推测值误差比率会有超过 50%的情况。当振动加速度振幅的时间积分小于800 m/(s2·s)时,推测泥石流体积,误差比率虽然也有超过50%的情况出现,但是在发生比其规模大的泥石流时,推测精度显著提高。
By setting seismometers in Japan’s Seihan-shaori, Seoido, and observing the vibration characteristics of the foundation during the debris flow movement, the functional relationship between the peak vibration acceleration and the peak flow, the time integral of the vibration acceleration amplitude and the volume of the debris flow was established. Between the strong positive correlation, correlation coefficients were 0.90 and 0.98. From this we can conclude that the gravel-type debris flow flow or total sediment output can be inferred by observing the foundation vibration. However, when the vibration acceleration is less than 40 m / s2, the estimated error rate of the crest flow will exceed 50%. When the time integral of the vibrational acceleration amplitude is less than 800 m / (s2 · s), it is estimated that the debris flow volume and the error ratio exceed 50%, but when the magnitude of the debris flow is larger than before, the accuracy of prediction is remarkably improved.