Simulation study of sewage pipe network based on POI flow estimation and ES algorithm calibration
The key to simulating a sewage network is to accurately estimate the amount of sew-age inflow,while existing estimation methods rely on statistical data and have low accuracy.This paper proposes a sewage volume estimation method based on information points(POI).The water consumption of different building types is analyzed using open-source POI data,and the flow of in-spection wells is calculated by Euclidean distance association.A sewage network model is construc-ted and calibrated with monitoring data and ES algorithm.It is applied to a small urban sewage network,calibrated with flow monitoring data and verified with liquid level monitoring data.The results show that,except for individual nodes,this method is significantly better than the tradi-tional pipe length flow estimation method,with NSE and KGE coefficients both above 0.9,and can accurately and efficiently simulate the sewage network dynamically.
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