Suggestion of the Ground Stiffness Estimative Method with the Running Speed of a Plate Compactor

A reversible plate compactor, that is one type of small compaction machine, travels by performing small jumps forward or backward according to its own vibration and resistance from the ground. So it is assumed that its running speed is affected by the stiffness of the ground. Therefore it is thought that it would be possible to estimate ground stiffness by measuring the running speed of a reversible plate compactor using an inexpensive method (stopwatch etc.).