RISK MANAGEMENT PLANNING AND VULNERABILITY ANALYSIS OF WATER SYSTEMS IN BIG CITIES OF IRAN

摘要

The main purpose of securing of hydraulic installations against earthquake is to guarantee efficient performance of water distribution network during and after earthquake. For achieving this goal, a comprehensive design should be prepared in three different levels; before earthquake, after that and in the reconstruction phase. Before earthquake a rough estimation from type of possible damages and their magnitude should be made and strengthening designs based on seismic regulations for weakness points of hydraulic structures should be prepared and implemented in all stages of design, development and reconstruction. Regarding this matter and for evaluation of earthquake damages, as well as providing remedies for minimizing the effects and danger of earthquake, some fundamental concepts should be considered; this includes: Determining elements which are threatened by the earthquake, earthquake scenarios and threats, failure models and structure of risk management model.In this paper, analysis of vulnerability as well as definition of risk management regarding water systems in one of the most important cities of Iran, Tabriz city has been discussed.