Abstract
The safe and stable operation of the urban water supply network system is vital for the development of the city and people's daily life. However, the aging and damage of some pipelines are inevitable as time passed by. Accidents, such as pipe bursting, will happen if the maintenance is not timely or not in place. Aiming at the emergency event of the water supply pipe network burst, this paper took the main water supply line of Shenzhen North Line as an example, and established a one-dimensional (1D) hydrodynamic model suitable for both pressurized water flow and free surface water flow. The rationality and effectiveness of the model were verified through the analysis of the simulation results (water level, flow, water head, etc. at each section) under normal conditions. The 1D hydrodynamic pipe network model under burst conditions was constructed based on the normal conditions. The flow stability time of the burst position obtained by the model is 24100 s in which the water supply flow is reduced to 0m3/s after the pipe burst, and flow stability time of the pipe section is positively correlated with the distance of the pipe section according to entrance. By assuming different burst sections, the correlation between the distance of the inlet section of the burst stability time pipeline after the burst at different positions was simulated. The research results can provide strong data support for emergency maintenance decisions if a pipe burst has happened and it also provides an idea for the hydrodynamic modeling of pipeline network emergencies.
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Funding
This study was financially supported by the National Key R&D Program of China (2022YFC3002703), and Natural Science Foundation of China (52179016), Natural Science Foundation of Hubei Province (2021CFB597).
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W.P.F.: data curation, formal analysis, writing – original draft, writing – review & editing; J.Z.Q.: conceptualization, funding acquisition, methodology, supervision; D.J.F: investigation, visualization, writing – original draft.
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Pengfei, W., Zhiqiang, J. & Jiefeng, D. Burst Analysis of Water Supply Pipe Based on Hydrodynamic Simulation. Water Resour Manage 37, 2161–2179 (2023). https://doi.org/10.1007/s11269-023-03485-1
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DOI: https://doi.org/10.1007/s11269-023-03485-1