三种模型法对不同排水条件下雨水泵站规模的优化研究

发布时间：2018-07-04 08:29

本文选题：雨水泵站 + 优化规模　；参考：《华中科技大学》2015年硕士论文

【摘要】：当受纳水体水位高于雨水管道排出口顶部标高时,雨水不能依靠重力自流排出,或者排水区域地面高程低于受纳水体的最高水位时,均需要建设雨水泵站。《室外排水设计规范》2014版提出了排水设计需要考虑内涝防治重现期的要求,但当前雨水泵站规模计算方法存在不足,计算得到的雨水泵站规模需要进一步优化。文本紧跟规范要求,从雨洪模型入手,探讨使用模型进行泵站规模优化的研究。主要开展了以下工作:以常规方法为基础,选择简化SCS模型法、InfoWorks ICM模型软件法,探讨了雨水泵站规模的优化;通过实例演示了不同模型法分别计算有调蓄设施情况和无调蓄设施情况下的雨水泵站的规模,并使用层次分析法优化了三种模型法的计算规模,确定了最终雨水泵站优化规模;探讨了调蓄设施和启泵水位对泵站规模及运行的影响。通过以上研究得到结论如下:(1)常规方法、简化SCS模型法和InfoWorks ICM模型软件法在实际应用各有优点,计算得出的泵站规模有其合理性,但三种方法都有存在不足,应该综合考虑后得到优化泵站规模;(2)经层次分析方法计算后,东寺泵站最终规模确定为35m3/s,洋澜湖泵站最终规模确定为77.9m3/s;(3)调蓄设施可以有效减小泵站规模,因此应注意对湖泊水域的保护及恢复;另外,降低启泵水位,可以提高雨水泵站应对暴雨的能力,建议在降雨前进行预判,并适当降低启泵水位以降低洪涝灾害风险。
[Abstract]:When the water level of the receiving water is higher than the top elevation of the outlet of the Rain Water pipeline, the Rain Water cannot be discharged by gravity self-flow, or the surface elevation of the drainage area is lower than the maximum water level of the receiving water. The 2014 edition of the Outdoor drainage Design Code puts forward that the drainage design needs to consider the recurrence period of the waterlogging prevention and control, but the current calculation method of the scale of the Rain Water pumping station is insufficient. The calculated Rain Water pumping station size needs further optimization. According to the specification, the paper discusses the optimization of pumping station scale by using rain flood model. The main work is as follows: based on the conventional method, the simplified Rain Water model method is selected to optimize the scale of Rain Water pumping station. The scale of Rain Water pumping station with and without storage facilities is calculated by using different model methods, and the calculation scale of three model methods is optimized by AHP, and the optimal scale of final Rain Water pumping station is determined. The effects of storage and storage facilities and water level on the scale and operation of pumping stations are discussed. The conclusions are as follows: (1) the conventional method, simplified SCS model method and InfoICM model software method have their own advantages in practical application, and the calculated pumping station scale is reasonable, but the three methods have some shortcomings. After comprehensive consideration, the optimal size of pumping station should be obtained; (2) the final size of Dongsi pump station is determined to be 35 m3 / s, and the final scale of Yanglan Lake pumping station is determined to be 77.9 m3 / s after the calculation of analytic hierarchy process (AHP) method; (3) the regulating and storing facilities can effectively reduce the size of pumping station. Therefore, attention should be paid to the protection and restoration of lake waters, in addition, the ability of Rain Water pumping station to cope with heavy rain can be improved by lowering the water level of the pump, and it is suggested that the water level of the pump should be lowered properly before the rainfall to reduce the risk of flood disaster.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU992.25

【参考文献】