Economic optimization design method for river regulation for urban landscape

Abstract

The invention discloses an economic optimization design method for river regulation for urban landscape. The economic optimization design method includes steps of firstly, analyzing whether functions of river reaches meet requirements or not for current river sections according to data of sectional structures of the various river reaches, and determining the river reaches required to be regulated and sectional regulation patterns of the river reaches; secondly, determining decision variables according to the sectional regulation patterns, determining constraint conditions according to a plan and standards, and building an economic optimization mathematical model for river sectional regulation; and thirdly, performing analog computation for the mathematical model by an optimization algorithm and acquiring preferred values of the decision variables. A river regulation gain is used as an objective function of the mathematical model. The economic optimization design method has the advantages that the mathematical model coupled to various regulation objects in terms of hydraulic power, landscape, ecology and the like is built, the optimal decision variable values are acquired via the analog computation by the aid of a computer, accordingly, the regulation gain is maximized, and the economic optimization design method is suitable for planning and designing river regulation for urban landscape.

Description

technical field [0001] The invention relates to an urban landscape river regulation method, in particular to an economical optimization design method for urban landscape river regulation. Background technique [0002] Urban rivers are an important part of the urban ecosystem, and comprehensive management of urban rivers is of great significance for maintaining urban ecological balance, optimizing urban landscapes, and improving the living environment. The traditional urban river regulation mode mainly focuses on the requirements of flood drainage and waterlogging drainage, and carries out river dredging and bank protection construction. Most of the river channels are linearized or channelized and concrete treatment modes are used, while the ecological landscape function of the river is ignored. In recent years, with the development of economy and society and the improvement of residents' living standards, the concept and system of ecological landscape rivers have been gradua...

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Problems solved by technology

At present, although there are certain technologies and concepts for ecological landscape river management, there is no systematic general model, which leads to the fact that the successful method of ecological management of one river may not be suitable for another river. In addition, there are many river management projects. Including flood discharge, waterlogging, water storage, clearing, landscape, ecology, shipping, etc., because there is no systematic method for comprehensive evaluation and analysis, the project goals interfere with each other, and because the design fails to take into account comprehensively, only the river course is focused The function of the ecological landscape after governance ignores the economic cost in the governance process, resulting in high overall governance costs

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