STUDY ON MAINTENANCE PRIORITIES AND PREVENTIVE MAINTENANCE CONCIDERING THE INSPECTION RESULTS OF COASTAL REVETMENT

Abstract

 It is not realistic to carry out preventive maintenance repair simultaneously for all coastal revetments which are deteriorated. Therefore, it is necessary to set priorities of countermeasures and conduct inspection and repair systematically. In this research, we classified the deterioration confirmed in the periodical inspection conducted in Nagasaki Prefecture. In addition, we examined the priority of maintenance management and selected preventive maintenance for each classification. The maintenance management policy was set in consideration of the possibility of performance degradation of the structure in the future based on the deterioration chain concept.