Seismic damage estimation procedure for water supply pipelines

摘要

This paper made an analysis of characteristics of damage to water supply pipes during the Hyogoken-Nanbu Earthquake focusing on Ashiya and Nishinomiya cities where topography had outstanding effects on the Damage. The relationship between topography and damage rate was analyzed qualitatively using GIS, and Topography was classified into several typical groups and quantification was carried out. Based on the Quantification results, correction factors were defined for pipe material, pipe diameter, topography and Liquefaction, taking overall tabulation results for the damaged area into consideration.