Abstract
The Asakura et al. formula is used to estimate tsunami wave force acting on the land
structure on the non-overflowing flow. The Matsutomi formula and the Ikeno et al. formula
are used for the estimation of the collision force of the driftage thrust by the tsunami acting on
the seawall. It is not clear whether these estimation formulas can be applied even in different
situations from the proposed experimental conditions.
In this experiment, the tsunami wave force was measured in slope and upright topography.
It is also done installing obstacles representing sandy beach or protective forest on the front of
the seawall. We examined whether the experimental value can be evaluated by the past formula
under these conditions different from the original Asakura et al. experiment.
In addition, we verified the collision force of the driftage acting on the seawall can be
evaluated by the past formula by a different wave generation method from the Matsutomi and
Ikeno et al. experiments.
