A performance evaluation method of urban drainage system
A system performance evaluation, urban drainage technology, applied in the field of urban drainage, to achieve the effect of accurate evaluation results, ensure accuracy, and avoid subjectivity
Active Publication Date: 2020-07-31
ANHUI UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
[0008] The purpose of the present invention is to overcome the disadvantage that it is difficult to truly judge the performance of the urban drainage system by using the existing urban drainage system performance evaluation method, and to provide a method for evaluating the performance of the urban drainage system
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Embodiment 1
[0088] This embodiment takes Chizhou City, Anhui Province as the background, combining figure 1 , using the method of the present invention to evaluate a newly designed low-impact development drainage system A.
[0089] Firstly, the relevant evaluation factors are determined. The evaluation factors determined in this embodiment are: {system elasticity, waterlogging volume, construction cost, operation and maintenance cost, pollution control rate, rainwater utilization}.
[0090] Carry out system resilience assessment with the help of urban drainage system model: In this embodiment, different threats are considered as system pipeline damage failure (0%-100%), and model simulation is carried out. According to the formula (a) to calculate the elasticity, the result is as follows figure 2 As shown, the system elasticity is calculated according to the formula (b), and the result is: R=0.592.
[0091] Carry out sustainability assessment with the help of the urban drainage system ...
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The invention discloses an urban sewerage and drainage system performance evaluation method, which belongs to the urban sewerage and drainage technology field. Resilience evaluation and sustainability evaluation are integrated together in the urban sewerage and drainage system performance evaluation method. The urban sewerage and drainage system performance evaluation method comprises steps that (1) system resilience evaluation indexes and sustainability evaluation indexes are determined, and a factor of every index is measured; (2) an urban sewerage and drainage system model is adopted, and factor values are calculated, and corresponding index values are calculated according to a formula; (3) by adopting an integrated formula, the performance index of the sewerage and drainage system is calculated. The urban sewerage and drainage system performance evaluation method is advantageous in that the urban sewerage and drainage system performance is evaluated, and the resilience and the sustainability of the system under different threatening conditions (extreme rainfall, member faults, and so on) are evaluated, and therefore evaluation results are accurate and objective, operability is strong, and the planning and the designing of the sewerage and drainage system are better facilitated.
Description
technical field [0001] The invention belongs to the technical field of urban drainage, and more specifically relates to a method for evaluating the performance of an urban drainage system. Background technique [0002] Urban drainage system refers to the overall combination of facilities for collecting, transporting, treating, regenerating and disposing of sewage and rainwater in a certain way (divided rainwater system or combined system). Under the background of global climate change and urbanization, urban waterlogging Happens frequently. Urban drainage system is an important part of urban waterlogging prevention and control, and its system performance is very important to its use. Therefore, the evaluation of urban drainage system performance is of great significance. [0003] How is system performance evaluated? The current research on the performance evaluation of drainage systems basically starts from the hydraulic performance, and according to different scenarios (d...
Claims
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IPC IPC(8): G06Q10/06G06Q50/26
CPCG06Q10/0639G06Q50/26
Inventor 汪明明高雪蕊孙远祥
Owner ANHUI UNIVERSITY OF TECHNOLOGY