Risk assessment model for dam groups in small and medium-sized watersheds based on chain transfer mode

Abstract

The dam group system is composed of multiple chain structures in series and parallel, the transmission process of disaster risk in the dam group system has a significant chain effect. On the risk chain transmission mode of the dam group system, the risk impact model between adjacent units of dams into the dam group is elaborated. A risk chain effect analysis and evaluation model for dam groups of small and medium-sized watersheds is constructed, and finally, the risk chain effect coefficient and risk level between dams are determined through the analytic hierarchy process and expert system synthesis. The method proposed provides a new path for risk assessment and management of dam groups.

Keywords

dam group / small and medium-sized watersheds / risk assessment / chain transmission / effect coefficient