Sponge city pipe network facility deployment evaluation method

Abstract

The invention discloses a sponge city pipe network facility deployment evaluation method, which comprises the steps of setting urban inland inundation ponding to be in a relatively static state, selecting an urban local area, and establishing an urban inland inundation prediction area model; collecting pipe network facility basic data and rainfall data of a to-be-evaluated city, and establishing an actual facility deployment abstract model in combination with the urban inland inundation prediction area model; pipe network preliminary evaluation of the waterlogging coverage area is completed through the waterlogging points; and calculating the coverage rate of sponge city pipe network facility nodes through a node coverage algorithm of sign (x) to complete evaluation. According to the evaluation method, a sponge city waterlogging prediction area model and an actual facility deployment abstract model are combined, a parallelization node coverage algorithm is adopted to calculate waterlogging point distribution, a waterlogging level and a pipe network facility node coverage rate of a corresponding area, and whether pipe network facility deployment of the area is reasonable or not is analyzed; the problems that existing urban drainage pipe network facilities are unreasonable in distribution, and urban inland inundation is likely to be caused are solved.

Description

technical field [0001] The invention belongs to the technical field of urban rainwater treatment methods, in particular to a method for evaluating the deployment of sponge city pipe network facilities. Background technique [0002] With the increasing rate of urbanization and the agglomeration of a large number of rural populations into cities and other factors, serious urban problems have emerged—urban waterlogging, mainly due to: [0003] 1) The original vegetation and soil on the ground are replaced by the high-speed development of high-rise buildings and hard pavement, gradually forming a hardened "steel city", covering the infiltration of rainwater, so that the rainwater can only be discharged from the rainwater pipe network facilities; [0004] 2) The design standards of rainwater pipe network facilities in most cities in my country are low, the layout of pipe network facilities is not perfect, and the concept of "quick discharge" and "end-centralized" control of water...

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Problems solved by technology

[0004] 2) The design standards of rainwater pipe network facilities in most cities in my country are low, the layout of pipe network facilities is not perfect, and the concept of "quick discharge" and "end-centralized" control of waterlogged water is also the main factor leading to urban waterlogging

For example, some pilot cities only focus on engineering construction, but do not pay attention to the overall planning and connection of the city; most pilot cities rarely integrate the new generation of information technology concepts in the construction of sponge cities, resulting in repeated construction, poor effect of new green facilities, urban waterlogging, etc. question

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