摘要
Abstract
In order to ensure the flood control safety of Beijing Sub-CBD,it is necessary to carried out the study on the countermeasures for the flood control of the Sub-CBD.Therefore,the study is made in combination with the existing operation mode,engineering condition and existing planning and improvement scheme by adopting the MIKE11 hydrodynamic module of DHI Mike Flood.Through the relevant scheme demonstration and after the adjusting the flood layout in accordance with the mode of the combination of both flood diversion and flood storage,if compared with the status flood control layout,the water level in the channel of Chaobaihe River within Beijing is increased by about 0.20 m and the water level of the channel at Wucun Sluice of Chaobaihe River is increased by 0.10 m,which slightly increases the pressure on the flood control of the downstream channel,while the peak flood flow rate of the North Grand Canal at the boundary between Beijing and Hebei Province is decreased to some extent,when the flood with the return period of 100 years occurs in the river system.In the aspect of the flood storage and detention basin,the flood diversions of Dahuangpuwa Flood Detention Basin and Huangzhuangwa Flood Detention basin are increased by 2.0million m3 and 3.0million m3 respectively,if compared with those under the condition of the status layout for the flood with the return period of 100 years,which cannot impact the safety operations of the flood storage and detention basins basically.Therefore,it is feasible to form a flood control layout of integrating storage with detention through excavating Wenchaojianhe River and constructing Songzhuang flood storage and detention basin.关键词
北京城市副中心/MIKE11/分洪蓄洪/防洪对策Key words
Beijing Sub-CBD/MIKE11/flood diversion and storage/flood control counter measure分类
建筑与水利
