Prioritization of the amount and type of environmental effects of dams by Analytic Hierarchy Process (AHP)

Authors

1 Assistant Professor, Department of Civil Engineering, Faculty of Engineering, Yasouj Branch, Yasouj Branch, Islamic Azad University, Yasouj, Iran

2 Department of Civil Engineering, Faculty of Engineering, Yasouj Branch, Islamic Azad University, Yasouj, Iran

Abstract

In Iran, due to climatic conditions and the need to build a dam to store water, dam construction is of particular importance. The construction of dams, like any other technology, has different positive and negative effects. The purpose of this study is to prioritize the amount and type of environmental effects of dams by Analytic Hierarchy Process (AHP). The present study is applied in terms of purpose and descriptive-survey in terms of data collection. Research data were analyzed using Analytic Hierarchy Process (AHP) and Exoert Choice software. The research collection tool is a researcher-made questionnaire that its validity was confirmed by the opinions of professors, experts and specialists in statistics and its Cronbach's alpha test. The statistical population of this research is all members of the engineering system of Yasuj city, which according to the estimates of the Engineering System Organization is 2000 people. Based on Krejcie and Morgan table, 50 people were selected for the above population as the sample size (due to coronary constraints and the nature of hierarchical analysis). Sampling method is available by sampling. The results showed that the most important factors affecting the environmental effects of different types of dams by hierarchical analysis from the strongest to the weakest factor are: gravel dams, weighted concrete dams, retaining concrete dams, rubber dams, arched concrete dams Weight-based dams, sediment dams, earthen dams.

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