Modeling method of on-line hydraulic model of municipal drainage pipe network

Abstract

The invention relates to a modeling method of an on-line hydraulic model of a municipal drainage pipe network, belonging to the technical field of municipal engineering information; the modeling method can construct a municipal drainage pipe network on-line model and realize to input real-time rainfall data to the on-line model continuously when flood situation is forecasted, and analog computation is carried out to the model; furthermore, the model provides analog computation data of whole future water recession process for a drainage pipe network system continuously, so as to achieve real-time forecasting water regimen and timely warning functions. The method overcomes the disadvantages that the conventional drainage pipe network event model only can simulate the complete rainfall events in the city flood simulation and can not simulate real-time rainfall events, can effectively forecast the generating and changing process of the city flood in a real-time and on-line way, ensure long-term and stable operation of the on-line model system and provide technical support for city flood-prevention strategic decision.

Description

technical field [0001] The invention relates to an online model modeling method of an urban drainage pipe network system, which belongs to the technical field of municipal engineering information. Background technique [0002] Global climate change and the intensification of urbanization have made urban floods more and more serious. In recent years, large and medium-sized cities in China have been repeatedly hit by heavy rainstorms and floods, causing serious losses. The particularity of urban areas makes urban rainstorm and flood disasters different from river floods. Urban rainstorm and floods have the characteristics of sudden outbreak and huge losses. Urban regional drainage pipe network is a pipe system designed and laid manually. The large-scale pipe network in large and medium-sized cities increases the difficulty of flood prevention and control. [0003] The drainage network model is an effective tool for simulating the operation capacity of the urban drainage syst...

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Problems solved by technology

[0007] The purpose of the present invention is to provide an online hydraulic model modeling method for urban drainage pipe network, which overcomes the shortcomings of conventional drainage pipe network event model modeling in simulating urban floods that can only simulate complete rainfall events and cannot simulate real-time rainfall events

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