摘要
设计人工湖时,若湖体形态设计不科学或为维持湖体水环境质量而进行换水的次数不合理,将造成水资源的极大浪费。采用EFDC模拟软件对石家庄市正定湖6种设计方案条件下的湖泊流场进行了模拟计算,在不同调水方案下对正定湖水龄和颗粒物进行追踪模拟,预测了正定湖水质变化规律。结果表明,调水流量为50m3/s时既能大幅度改善正定湖水环境质量,又能减少调水时间和节约水量,此时调水时间3～4d方案为最优设计方案。
During the design of artificial lake, unscientific lake shape design or unreasonable frequency of water change for maintaining water environment quality of lake will cause a great waste of water resources. EFDC software is used to simulate the flow field of Zhengding Lake, Shijiazhuang under 6 design schemes. Through simulation of water age and tracking of particle under different water transfer plan, the variation rules of water quality is predicted. The results show that when the flow is about 50m^3/s, the time and water resource needed is the most economic and the water environment quality of Zhengding Lake is also improved greatly~ the time of water transfer is 3-4 days for optimization design scheme.
出处
《水电能源科学》
北大核心
2013年第4期100-102,33,共4页
Water Resources and Power
关键词
EFDC
人工湖
水龄
生态设计
EFDC
artificial lake
water age
ecological design
