14. Stability of deep water caisson breakwater against random waves

The deepest caisson breakwater in Japan is under construction at the water depth of 60 m in Kamaishi Bay. The most remarkable feature of wave pressures due to standing waves in a deep water is that the negative peak is larger than the positive peak in the absolute value. In the present paper, this fact is demonstrated by both results of irregular wave tests and calculations with the fourth order approximate theory of finite amplitude standing waves. Sliding distances of the caisson are also discussed with the results by experiments and theoretical calculations.

• SYNOPSIS

• TSUNAMI BREAKWATER AT KAMAISHI PORT

• LABORATORY EXPERIMENTS

• ESTIMATION METHOD OF INCIDENT WAVE HEIGHT FOR INDIVIDUAL WAVES

• WAVE PRESSURES ON THE WALL

• STABILITY AGAINST SLIDING

• THEORETICAL CONSIDERATIONS FOR SLIDING DISTANCE

• CONCLUDING REMARKS

• RFERENCES