This present report aims at evaluating the seismic stability of caisson type quaywalls in Kobe Port during the 1995 Hyogo-Ken Nanbu Earthquake by means of present design ways and one-dimensional model analyses.
　14 facilities were picked up for the study, and one-ied to estimate the earthquake motion acted on each quaywall.
　Factor of safety has been calculated by using the present design ways, and seismic stability of the facilities has been discussed. Through statistical study, comparatively strong correlation between factor of safety and maximum horizontal displacement has been observed.
　One-dimensional model analyses have also been carried out. It was shown that one-dimensional model analysis is more appliciable than seismic coefficient method, according to circumstances.