Urban rainstorm waterlogging river water level regulation efficiency quantitative evaluation and decision method

Abstract

The application discloses a kind of urban rainstorm waterlogging river water level regulation efficiency quantitative evaluation and decision-making method, belong to urban flood control and drainage and hydrology analysis technical field. Including: S1, coupling hydraulic model is constructed and verified;S2, simulate the combination of multiple groups of rainfall recurrence period and multiple groups of river water level recurrence period scene, and obtain the waterlogging key index under each scene;S3, for each scene, respectively calculate water level absolute contribution degree and water level marginal contribution rate, the effect potential and response efficiency of regulation are quantified, and the significant regulation interval is identified;S4, comprehensive efficiency grade assessment is carried out to each scene, and the scene is mapped to corresponding regulation decision category.The application realizes the evaluation of waterlogging regulation efficiency from qualitative to quantitative, from single to comprehensive, can provide direct, quantitative decision support for accurate flood control scheduling of reservoir, gate dam and other water conservancy facilities.

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