【作者】 孟凡强；

【导师】 冯平；

【作者基本信息】 天津大学 ， 水利水电工程， 2004， 硕士

【摘要】 本文在分析了目前我国面临的防洪形势，阐述了在对防洪工程措施的合理管理规划的基础上，以防洪非工程措施的完善发展来推动防洪工程措施的建设，来完成防洪任务的思路。并重点探讨了水库及其下游河道在洪水管理控制中的作用，研究了二者在洪水调度控制中的一般问题，主要内容如下：（1）在分析研究水库调度控制的基本原理和一般方法的基础上，建立了水库防洪风险估算的基本方法。然后，针对狮子滩水库因淤积而使水位～库容关系发生变化，进而可能影响其防洪控制运用和防洪安全的问题，采用实测的洪水过程作典型，通过同频率放大来推求设计洪水，利用水库调度的防洪补偿调节原理，采用新的狮子滩水库水位~库容关系和不同方案的分期汛限水位，对来水过程进行了调洪演算，将演算中采取的指标和原有的水库防洪控制指标进行对比，完成对原有防洪控制指标的复核分析，根据分析结果确定水库的防洪指标的安全性，也为水库的管理运行和汛期的规划调度提供更新的科学依据。（2）针对水库下游河道的基本特点，采用完全水力学方法，借助 Preissmann四点差分隐格式对圣维南方程组进行了离散求解，建立了水库下游河道洪水演进模拟模型。然后，通过对于桥水库不同下泄流量和区间支流句河的各种洪水组合情况进行了模拟，并将计算结果和已有的规划结果进行了比较，验证了模型的合理性和可行性。在确定模型合理性的同时，对于桥水库下游州河超标准洪水的运用问题进行探讨，给出了可行的防洪管理控制措施。结果表明：模型模拟结果正确合理，超标准洪水的控制措施得当，可以为汛期州河防洪规划和管理提供可靠的技术依据。更多还原

【Abstract】 In this thesis, the present situation of flood control in our country is analyzed.After that, the development of non-flood control project measure, and the constructionof flood control project measure is introduced. Based on the reasonable schedule ofthe management and control project measure, the idea of flood control to develop thenon-flood control project measure is proposed. Then, the problem of the flood controland management about reservoirs and its downstream channel is discussed primarily,and some general operation approach of flood control is researched. The followingoutcomes and conclusions have been obtained. (1)Based on the analysis of fundamental and general approach of the reservoircontrol operation, the basic method to estimating reservoir risk is established. Becausethe change of a reservoir capacity relation owning to sediment accumulation couldprobably influence flood control operation and flood protection, by the simultaneousfrequency enlarge method of the measured flood process, the design flood level of thereservoir need to estimated again. Then with the principle of the compensativeregulation of flood control, and according to a new reservoir capacity relation anddifferent limit flood water levels, the flood routing method and the flood ControlIndex of the reservoir have been investigated in the Shizitan reservoir. Though theresearch a new scientific foundation is obtained for the reservoir management andoperation during the period of flood season. (2)Using the hydraulics methods and considering the basic characteristic ofreservoir downstream channel, the flood routing model of the reservoir downstreamchannel is designed by the Preissmann four-point implicit different scheme to solvingthe equation of St.venant simulating the different discharge of Yuqiao reservoir and allthe flood combination of branch river Juhe, the rationality and feasibility of the modelhas been verified by comparing the numerical results to the design results. Moreover,the problem of flood control in the lower reaches of Yuqiao reservoir has been studied,and the feasible measure of flood control has been obtained. The results shows thatthe flood routing model is correct. Then, a reliable foundation of the flood control andmanagement is obtained for Zhouhe river during the period of flood season.更多还原