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不同地震荷载对黄土的动力特性有着重要影响。本文利用微机与我们组装的DSD160型电磁式振动三轴仪组成的一个可对试样施加任意波轴向荷载的动三轴试验系统,对黄土在不同地震荷载下的动模量和阻尼比进行了对比试验研究,初步得到了不同地震荷载对一组黄土的动模量及阻尼比影响的一些结果。
Different earthquake loads have important influence on the dynamic characteristics of loess. In this paper, a dynamic triaxial test system consisting of a DSD160 electromagnetic vibratory triaxial instrument assembled by us and a computer can be used to apply arbitrary wave axial load to the specimen, and the dynamic modulus and damping ratio of loess under different earthquake loads are performed. A comparative test study has initially obtained some results of the effect of different earthquake loads on the dynamic modulus and damping ratio of a set of loess.