ABSTRACT
Static load tests are conducted under loading conditions similar to those of actual piles and are highly reliable for evaluating vertical bearing characteristics, but they require large scale reaction force equipment as well as force testing and measurement devices. On the other hand, rapid load tests, in which a weight is freely dropped onto the pile head and a load is applied for a short period of time, do not require a reaction force device in the test equipment and have advantages in terms of cost and construction time. However, since the measured data includes the effects of dynamic resistance and inertia of the pile and soil, it is necessary to remove the dynamic effects by analysis in order to evaluate the results as static vertical bearing characteristics. This study focused on the effect of loading rate among the dynamic effects, and the triaxial compression tests were performed on geomaterials at different loading rates to evaluate the effect of loading rate.
