Author(s): Hongwei Liu; Shaozhi Chu; Zhao Cai; Xing Min

Linked Author(s): Hongwei Liu

Keywords: Hydrodynamic model; Factory area; Drainage; Extreme rainstorm flood; Flood control capacity

Abstract: The coastal plains of eastern China often develop complex river networks because of the low elevation and flat topography, where the flow is usually affected by tides significantly. It is susceptible to damage to engineering buildings and other structures in the area when it encounters extreme rainfall and sea tides. Construction projects located in these coastal plain areas face many challenges in determining the design flood level calculation and drainage system design because of the combination threaten of the local rainstorm waterlogging, external floods, and tidal effects at estuaries. It is difficult to accurately calculate the design flood and evaluate the drainage capacity using basin hydrological models or empirical formulas. Based on the hydraulic models (MIKE 1D, 2D and urban), this study constructs a reasonable coupled hydrodynamic numerical model to simulate the superposition of external floods and local rainstorm waterlogging in the construction project, simulate the typical offshore plant drainage process under different drainage engineering measures, and calculate and analyze the temporal and spatial changes of the water depth inside the project area, providing a feasible method for the calculation of design floods and flood control capacity evaluation.

DOI: https://doi.org/10.64697/978-90-835589-7-4_41WC-P1681-cd

Year: 2025