Risk assessment methods of cascade reservoir dams: a review and reflection

Risk assessment of cascade reservoir dams is not only the key to ensure safety basin, but also objective requirement dam risk management. Based on development status reservoirs in China, complexity management compared with a single was analyzed. By reviewing advances studies reservoirs, this paper summarized their limitations terms scientificity and practicability. Moreover, some concepts methods were proposed reservoirs: (1) The decomposed into own additional risk, consequence its breach direct loss potential loss, an influence coefficient defined reflect transmission superposition degree among reservoirs; (2) related formulas for calculation probability proposed, which realized transition method from (3) A project rank classification took account scale benefits socioeconomic development, successive breaches possibility consequences. This study great significance clarify focus future research promote practical application reservoirs.