EVALUATION OF INFLUENCES ON DAMAGE TO WATER DISTRIBUTION PIPELINES BASED ON THE QUANTIFICATION METHOD TYPE I

Abstract

 In this study, the authors conducted a damage analysis of water distribution pipelines during the 2016 Kumamoto earthquake using Geographic Information System (GIS). We analyzed the relationship among the pipe material, diameter, topographic condition, seismic intensity and damage ratio of the water distribution pipelines. Besides, the damage ratios were compared with the correction coefficients of fragility function of water pipes. In order to reveal the cause of damage to water distribution pipelines during an earthquake, we performed a regression analysis based on the quantification method type I. To achieve the objective, damage datasets in the five municipalities were employed in this study.