华容河治理前后水量水质耦合模拟研究

Coupled simulation on water quantity and quality of Huarong River before and after harnessing project

自1958年在华容河进出口建闸后,水流流速变缓,泥沙淤积严重,水质恶化。为解决华容河目前存在的上述问题,需采取河道疏浚和引水工程措施。采用一维和二维水质水量耦合模型对华容河治理工程前后不同引水量条件下的水质水量变化情况进行了模拟分析。结果表明,工程建成后,在13 m3/s引水量条件下,既能够满足华容河沿岸居民的需水量要求,也能够保证华容河水功能区的水质。模拟结果为华容河的水环境管理提供了科学依据。

After sluices were built at inlet and outlet of Huarong River in 1958,the river flow velocity was slowed down,the sediment deposition and the water pollution had became serious.In order to solve the existed problems in water environment,the measures of river channel dredging and water diversion are suggested.By 1D and 2D coupled simulation model of water quantity and quality,the water quantity and quality condition before and after the engineering measures taken are analyzed under different water diversion quantities.The result shows that 13 m3/s of water diversion can not only meet water demand of residents along the banks,but also can guarantee the water quality of Huarong River to meet water function requirement.The simulation results can provide reference for scientific management of Huarong River.