Abstract
The steel-made impervious walls (steel barriers) have been constructed as a landfill revetment in coastal waste landfill sites. It has been clearing the steel impervious walls to possess impervious property and durability by some field investigations and experiments in the past study. The long-term impervious properties of the joint section at the steel-made impervious walls have also been evaluated. However, these evaluations do not consider the degradation of an ingredient. The authors try to apply the reliability evaluation of degradation for the steel-made impervious walls and calculate the life cycle costs (LCC) as the standard making strategy of maintenance. In addition, the authors consider the utilization method of the LCC such as selecting the method of construction which repairs the coastal waste landfill site based on the calculated LCC.
