INTERACTION-RELATED DISASTER PROPAGATION BETWEEN WATER SUPPLY SYSTEM AND URBAN FUNCTIONS DURING THE GREAT HANSHIN EARTHQUAKE

Abstract

In the Great Hanshin Earthquake, the effects of water supply cut-off on other lifeline systems and waste incinerator were very severe. The disruption of the water supply systems caused great difficulties in the medical services and fire-fighting. Gas pipes were filled with water leaking from the water and sewerage systems. The inability to operate pumps and emergency generators due to lack of industrial water was a common problem. The recovery of malfunction of sewerage system was affected by water supply cut-off and its restoration process. The effects of breakdown in the electric power system on water supply system were also examined.