特大洪水在荆江河段演进模拟研究  

Simulation of extraordinary flood routing in Jingjiang River Section

作　　者：张小峰[1] 董炳江[1] 穆锦斌[2] 白洋[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,武汉430072 [2]浙江省水利河口研究院,杭州310020

出　　处：《中国水利》2008年第17期43-46,共4页China Water Resources

摘　　要：针对荆江-洞庭湖复杂河网系统规模庞大、水流复杂特点,为模拟特大洪水在长江荆江河段的演进过程,建立了一、二维联算洪水演进模型,其中河道与湖区采用一维河网模型,分蓄洪区水流采用二维模型模拟。分别采用1996年及1998年水文资料对模型进行了率定和验证,取得了较好的结果。将模型模拟应用于荆江特大洪水调度,根据计算结果,启用荆江分洪区、虎西备蓄区、涴市扩大分洪区、人民大垸蓄洪区、洪湖分蓄洪区,且上百里洲扒口行洪时能确保荆江大堤安全。River networks of Jingjiang River and Dongting Lake with developed aquo-system and large referent areas, have much complex law of water. According with the characteristic, the paper establishes a combined one-dimension and two-dimension for flood routing, Further, river flow adopts 1D model, 2 D model is used for water movement in flood diversion and detention area. The model is estimated and validated using the measured hydrological date in 1996 and 1999. The simulation results are satisfactory. The model has be used in the catastrophic flood operating of Jingjiang River. The result shows that the use of flood diversion area can make sure of the security of Jingjiang bank, including Jingjiang, Huxi, Wanshi, Renming dayaun, Honghu and Shang baili flood diversion area.

关 键 词：荆江河段 分蓄洪区 洪水演进 模型 

分 类 号：TV873[水利工程—水利水电工程]