Construction And Application Of Drainage Network Hydraulic Model In HD Area Of Guangzhou City

Drainage network is the critical infrastructure of the city, it plays an important role in the city. On the dry days it transfers sewage and on the rainy days it acts on flood protection and storm drainage. With the development of urbanization process, the planning and design and the operation and management methods of traditional drainage network gradually are unable to meet the needs of the current construction of drainage facilities. Advanced hydrologic/hydraulic-hydraulic model method can accurately simulate the pipe network running status to become an effective way.This paper is based on Info Works CS model, completing the construction of drainage network hydraulic model in Guangzhou city’s HD area to evaluating the network’s running status effectively and finding out the bottleneck in the Network operation, providing guidance for the pipe network’s transformation and optimal operation by formulating corresponding solutions.In the paper, the construction of the HD area’s drainage network topology is completed based on the network based data and the review of topology. The ways were analyzed to determine the node flow and determine the drainage mode of the six pollution sources in the HD area. By using ISCO2100flow meter, three key nodes’flow monitoring was completed, the monitoring points" dynamic operation data was obtained, and the pumping station running data was obtained by the pumping station’s monitoring. The HD area’s drainage network hydraulic model calibration was completed by fitting model calculating data with monitoring data. Using model platform analyzed the pipe network’s running status and the reason of pipe network in high water level. The corresponding optimization solution for problems in the pipe network was put forward through hydraulic model platform. The HD area’s waterlogging risk analysis was completed on the basis of dry field model calibrationIn this paper, according to the establishment of working method and process for HD area’s drainage network, reference and basis were providing for establishing other urban drainage network hydraulic model.