Damage Analysis of Water Supply System in Heavy Rain Disasters

摘要

This paper examines the characteristics of damage to water supply system in heavy rain disasters in order to take effective measures against heavy rain. Firstly, a database of damage to water supply system in heavy rain disaster was made. The data include the damage to water supply facilities induced by heavy rain in Japan from 1999 to 2015. Thirty-six heavy rain disasters are picked up here because sufficient information of water stoppage and amount of rainfall are available from the database. The relation between water stoppage and amount of rainfall was clarified by using the database.