Investigation of Qom Rural Area Water Network Accident in 2010 and Minimization Approaches of Accident Frequencies

Background & Aims of the Study: Accidents in water networks can lead to increase theuncounted water, costs of repair, maintenance, restoration and enter water contaminants towater network. The aim of this study is to survey the accidents of Qom rural water networkand choose the right approaches to reduce the number of accidents.Materials & Methods: In this cross-sectional study, four sector of Qom province(Markazi, Dastjerd, Kahak and Qahan), were assessed over a period of 8 months (July –January 2010). This study was conducted through questionnaire of Ministry of Energy.Results: The total number of accidents was 763. The highest number of accidents in thefour sectors was related to Markazi sector with 228 accidents. According to the time of theaccident, the highest and lowest number of accident was related to September (19.7%) andNovember (6.8%), respectively. According to the location of the accident on network, thehighest and lowest number of accident was related to distribution network (64%) andconnections (17.5%) and transmission pipe (18.34%), respectively. According to the typeof the accident, the highest and lowest number of accident was related to breaking (47.8%)and gasket failure (1.2%), respectively. Considering with the pipes’ material, the highestand lowest number of accident was related to polyethylene pipes (93%) and steel and castiron pipes (0.5%, 0.5%), respectively.Conclusions: Due to the high break rate of Polyethylene pipes, it is recommended to beplaced in priority of leak detection and rehabilitation.

کلیدواژه ها:

Accidents ، Water Network ، Minimization Approach ، Qom ، Iran