摘要
石佛寺水库是辽河干流上唯一的大型防洪控制工程,建立洪水过程数字模型可为水库管理提供科学、便捷的支持。使用MIKE软件建立水库二维非稳态水量模型,在AutoCAD和ArcGIS软件的协助下制作库区DEM,并提取相应地表高程数据制作研究区网格。研究区上游采用流量边界,下游采用水位边界,率定输出出口处的流量变化,并与2010年实测资料进行对比,据此修正了相关参数。模型模拟的20100720和20130816两次历史典型洪水过程与历史资料相符,验证了该模型应用于石佛寺水库的可行性,可为石佛寺水库的管理与洪水预测提供依据。
Shifosi reservoir is the large flood control project on the Liaohe River.Digital flood process model can provide a scientific and convenient support for management of Shifosi reservoir.The MIKE21 software was used to establish the two-dimensional unsteady hydrodynamic model.With the help of AutoCAD and ArcGIS software,the DEM in reservoir region was made and the corresponding surface elevation was extracted to make the grid of the study area.The upstream flow and the downstream water level were used as boundary conditions for determining the flow change at outlet section.The model parameters were modified according to comparison of the measured flow data in 2010.The model was applied to simulate two historical floods which occurred in 2010 and 2013,named respectively 20100720 and 20130816.The feasibility of the model for application to Shifosi reservoir was verified.It can provide basis for management of Shifosi reservoir and flood prediction.
出处
《水电能源科学》
北大核心
2016年第9期56-60,共5页
Water Resources and Power
基金
辽宁省科学事业公益研究基金项目(2015003006)
