孟加拉湾东海岸某沿海电厂泥沙淤积问题

Sediment siltation problem in a coastal power plant on the east coast of the Bengal Bay

孟加拉湾东海岸海域呈“强浪强潮高含沙水体”特点,加上复杂的地形特征,泥沙淤积会对港池航道的通航水深和电站取排水口地形的过流断面带来不利影响,沿海港口及滨海电站水工配套工程的建设面临较大挑战。分别采用潮流泥沙数学模型和波浪潮流泥沙动床物理模型试验,对孟加拉湾东海岸某电厂码头及取排水工程平面布置进行模拟,分析研究工程建设后港池、航道和取水明渠等区域的泥沙冲淤变化。研究结果为工程实施和今后运营管理提供可靠依据,为类似工程提供参考和借鉴。

The east coast of the Bengal Bay is characterized by"strong waves,high tides,high sediment content"and complex terrain features.Sediment siltation will have adverse effects on the navigable depth of the harbor basin channel and the flow section of the water outlet topography of the coastal power station.The construction of hydraulic supporting projects of coastal ports and coastal power stations are facing great challenges.By using the tidal sediment numerical model and the wave and tidal current mobile bed physical model,the layout plan of a power plant on the east coast of the Bengal Bay was simulated,the changes of sediment erosion and deposition in harbor basin,waterway and water intake channel after engineering construction are analyzed.The research results provide a reliable basis for the project implementation and future operational management,and provide reference and experience for solving similar engineering problems.