一种利用振动台试验测定土石料动剪模量的方法

A Method of Dynamic Shear Modules Measurement of Soils and Rocks with Shaking Table Test

介绍了一种利用振动台模型试验测定土石料动剪切模量的近似方法,首先根据振动台模型坝体白噪声微振试验的模态参数识别结果,可获得坝体动力特性参数,进而利用剪切梁公式可确定模型土石料的动剪切模量和模量系数,以双江口振动台模型试验为例验证了该方法的有效性。

This article introduces a method to determine dynamic shear modules of soils and rocks with shaking table test. According to the results of modal parameter identification of small vibration test of white noise on shaking table, dynamic charac- teristics of the model dam can be obtained. And then the dynamic shear modules and module coefficient can be determined with shear beam formula. Finally, this method is verified by the case of the shaking table test for Shuangjangkou core rock-fill darn.