本文選題：初期雨水　切入點(diǎn)：調(diào)蓄池　出處：《重慶大學(xué)》2014年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：初期雨水調(diào)蓄池對(duì)控制面源污染有著非常明顯的效果，并且實(shí)用性也比較強(qiáng)。它能收集污染負(fù)荷較大的初期雨水。無(wú)論是對(duì)新建雨水系統(tǒng)，還是改造現(xiàn)有排水系統(tǒng)，修建初期雨水調(diào)蓄池都能有效地降低污染負(fù)荷，并且具有良好的經(jīng)濟(jì)效益。 本文圍繞初期雨水厚度、調(diào)蓄池容積以及調(diào)蓄池的功效來(lái)對(duì)初期雨水調(diào)蓄池的調(diào)蓄能力展開(kāi)研究。首先對(duì)滇池流域初期雨水截留量進(jìn)行了研究，認(rèn)為初期雨水截留量應(yīng)根據(jù)各地不同的污染控制目標(biāo)來(lái)確定，這樣確定的初期雨水截留量是科學(xué)的。通過(guò)研究發(fā)現(xiàn)，利用“降雨事件分析法”能科學(xué)地計(jì)算出任意比例的初期雨水截留目標(biāo)值。并利用該分析方法計(jì)算得到，要實(shí)現(xiàn)滇池流域50%全年降雨量的初期雨水截留目標(biāo)，滇池流域初期雨水截留厚度為9.7mm。 其次，對(duì)調(diào)蓄池的容積計(jì)算公式進(jìn)行了研究。在本研究中，將調(diào)蓄池的容積計(jì)算分為合流制排水系統(tǒng)和分流制排水系統(tǒng)兩種情況來(lái)研究。在分流制排水系統(tǒng)中，計(jì)算調(diào)蓄池的容積主要是先通過(guò)“降雨事件法”科學(xué)的計(jì)算出初期雨水截留量，進(jìn)而得出分流制排水系統(tǒng)初期雨水調(diào)蓄池的容積。在合流制排水系統(tǒng)中，設(shè)置初期雨水調(diào)蓄池實(shí)際上是增大了系統(tǒng)的截留倍數(shù)，增加了系統(tǒng)的排水能力，從而減小了溢流外排量的大小。因此可以建立截留倍數(shù)與外排量的關(guān)系，通過(guò)外排量的削減目標(biāo)來(lái)確定系統(tǒng)需增大多少截留倍數(shù)，從而確定調(diào)蓄池的容積。 再次，介紹了SWMM模型的作用及其應(yīng)用的領(lǐng)域，并將模型的模塊理論進(jìn)行了闡述，同時(shí)也介紹了SWMM模型的建模方法以及模擬結(jié)果的分析方法。 最后，對(duì)合流制系統(tǒng)中的初期雨水調(diào)蓄池的截污功效進(jìn)行了研究。通過(guò)一個(gè)實(shí)例介紹了SWMM模型模擬合流制排水系統(tǒng)（匯水面積為108.4ha）的過(guò)程，并將昆明地區(qū)1996年的每小時(shí)的降雨輸入到模型，得出系統(tǒng)全年溢流總量為27.699萬(wàn)m3，總COD負(fù)荷為56.007噸；當(dāng)在溢流口處設(shè)置V=2000m3的調(diào)蓄池后，全年的溢流污水量削減55.7%，COD負(fù)荷削減率為60.5%。同時(shí)，利用“芝加哥雨型”結(jié)合昆明地區(qū)的暴雨強(qiáng)度公式合成P=0.25，P=0.5，P=1的降雨序列，將這三種輸入到模型中，得到在設(shè)置調(diào)蓄池前后，排水系統(tǒng)溢流量的情況。在P=0.25時(shí)，調(diào)蓄池對(duì)溢流污水量和COD負(fù)荷的削減率分別為100%，100%；在P=0.5時(shí)，，分別為33.38%，35.49%；在P=1時(shí)，分別為21.32%，23.1%。
[Abstract]:The initial Rain Water storage pool has a very obvious effect on the control of non-point source pollution, and it is also quite practical. It can collect the initial stage Rain Water, which has a heavy pollution load. Whether it is for the newly built Rain Water system or for the renovation of the existing drainage system, Rain Water storage tank can effectively reduce the pollution load and has good economic benefit. This paper focuses on the initial Rain Water thickness, the volume of the storage pool and the efficiency of the storage pool to study the initial capacity of the initial UNOMI_person1# storage pool. It is believed that the initial interception of Rain Water should be determined according to the different pollution control objectives in various places, and that it is scientific to determine the initial interception of Rain Water in this way. By using "rainfall event Analysis method", we can scientifically calculate the initial Rain Water interception target value of any proportion. By using this analysis method, we can obtain that we should realize the initial rainfall interception target of the Dianchi Lake Basin in 50%. In the early stage of Dianchi Lake Basin, the interception thickness of Rain Water is 9.7 mm. In this study, the volume calculation of the storage tank is divided into two cases: the combined flow drainage system and the distributary drainage system. To calculate the volume of the storage tank is to scientifically calculate the initial Rain Water's interception amount by "rainfall event method", and then to get the volume of the initial UNOMI_person1# storage tank in the diverging drainage system. In the combined drainage system, In the early stage of setting up the Rain Water storage pool, the interception multiple of the system is increased, the drainage capacity of the system is increased, and the size of the external discharge of the overflow is reduced. Therefore, the relationship between the interception multiple and the external discharge can be established. The volume of the storage tank is determined by the reduction target of the external discharge to determine how much interception multiple the system needs to increase. Thirdly, the function of SWMM model and its application field are introduced, and the module theory of the model is expounded. At the same time, the modeling method of SWMM model and the analysis method of simulation result are also introduced. Finally, the effect of the initial Rain Water storage tank in the combined flow system is studied. The process of simulating the combined flow system (the catchment area is 108.4 haa) with SWMM model is introduced by an example. The rainfall per hour in 1996 in Kunming area was input into the model, the total overflow amount of the system was 276,990 m3, and the total COD load was 56.007 tons. The rate of reduction of COD load is 60.5. At the same time, the rainfall series of "Chicago Rain Type" combined with the formula of rainstorm intensity in Kunming area are synthesized, and the three kinds of rainfall series are inputted into the model and obtained before and after setting up the storage tank. Discharge of drainage system. At P0. 25, the reduction rates of overflow sewage and COD load in the storage tank are 100 and 100, respectively; at P = 0. 5, 33. 38 and 35. 4910; at P = 1:00, 21. 32 and 23. 1, respectively.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TU992

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