Hiroshi OGASAWARA

A Research on Structural Evaluation Method for Base Course and Subgrade by using
Handy FWD Device.

Osamu@TAKAHASHI

In road pavement, the CBR test and the plate-bearing test are applied to the bearing
capacity evaluation method of subgrade and base course. However, these tests have the
fault of taking a large-scale device and large-scale time too much. Then the Handy FWD
test is considered now. But this device has many unknown point in a measuring method
etc, because it has been just developed. So I built subgrade and base course similar to
road pavement, and performed the Handy FWD test and plate-bearing test. Then, in
order to enable evaluation equivalent to the plate-bearing test, I clarified the measuring
method and processing method of data in the Handy FWD test.