Abstract
The behavior of an exciter which vibrates on the ground is studied through a numerical simulation. Results of the simulation make it clear that the vibrating behavior of an exciter varies not only with the stiffness of the ground, but also with the mechanical factors of the exciter, such as weight, frequency, etc. The effects of those factors on the behavior of a exciter are arranged with the resonant frequency of the exciter-ground system. The results of the arrangement yield a figure on which the ground stiffness can be uniquely specified from the vibrating behavior and the mechanical factors of the exciter. In this paper, we suggest a developing method with which the degree of soil compaction can easily be measured from the vibrating behavior of any exciter using this figure. The application of this method was examined in some model and field experiments.
