本文關鍵詞：截流式分流制城鎮(zhèn)排水系統(tǒng)的形式及設計研究　出處：《重慶大學》2013年碩士論文　論文類型：學位論文

  更多相關文章： 截流式分流制排水系統(tǒng) 設計方法 調(diào)蓄池 截流井

【摘要】：近30多年來分流制城鎮(zhèn)排水系統(tǒng)在我國得到了廣泛的應用，隨著《室外排水設計規(guī)范》GB50014-2006（2011修訂版）的發(fā)布與實施，，可以預見分流制城鎮(zhèn)排水系統(tǒng)將得到進一步的應用。初期降雨徑流污染問題已經(jīng)在全球范圍內(nèi)得到關注，在我國，隨著城鎮(zhèn)污水等點源污染通過修建大量的城鎮(zhèn)污水廠而逐步得到控制，初期降雨徑流污染也將日益成為未來主要的城鎮(zhèn)水環(huán)境問題之一。目前我國在初期降雨徑流污染方面已經(jīng)開展了一定的研究，個別城市甚至已經(jīng)開始著手規(guī)劃、設計和實施截流式分流制系統(tǒng)，但總體上來看，截流式分流制系統(tǒng)的規(guī)劃和設計還沒有得到應用的重視，系統(tǒng)性的設計理論和方法尚為缺乏，開展截流式分流城鎮(zhèn)排水系統(tǒng)的設計研究顯得十分必要和迫切，已成為我國未來城鎮(zhèn)排水系統(tǒng)建設和城鎮(zhèn)水環(huán)境保護與恢復的重要課題。 本文對國內(nèi)外初期降雨徑流控制技術及其設計和應用情況進行了綜述和分析，在此基礎上提出了截流式分流制城鎮(zhèn)排水系統(tǒng)的若干形式，并對若干主要設計問題，如截流量的確定、截流井形式、管段設計流量的確定以及系統(tǒng)比選方法等進行了研究，取得了如下成果： （1）對截流式分流制排水系統(tǒng)進行深入的全面分析，依次提出了5種可行的系統(tǒng)形式即截流管+截流井（I型）、合建分流式雙層排水管道+雙層截流井（II型）、雨污水管+雙層截流井（III型）、I型（或II、III型）+調(diào)蓄池（IV型）和I型（或II、III、IV型）+LID（V型）等，并針對每一種系統(tǒng)形式分析了其適用條件。 （2）分析研究了截流式分流制排水系統(tǒng)截流量、管道設計流量以及調(diào)蓄池容積等關鍵參數(shù)的計算問題，提出了相應的方法。分別為：1）截流量：具有降雨等降雨資料地區(qū)采用頻率分析法+SWMM模擬校核，缺少資料地區(qū)采用經(jīng)驗取值+SWMM模擬確定；2）管段設計流量：對于截流井下游雨水管道設計流量，當截流井未截流高峰徑流量時，采用目前的計算方法，當截流了部分高峰徑流量時，則需在截流前設計流量的基礎上扣除截流的部分高峰流量；對于調(diào)蓄池出流管設計流量，應根據(jù)下游排水管道或設施的受納能力進行確定；污水管、截流管和調(diào)蓄池入流管段的流量分配及設計則根據(jù)污水管或污水廠剩余承載量以及物料平衡原理進行分配和計算；3）調(diào)蓄池容積應根據(jù)公式且通過SWMM模擬進行確定。 （3）提出了截流式分流制排水系統(tǒng)截流井的可選形式，并針對傳統(tǒng)堰式（含跳躍堰式）截流井提出了設計方法，針對雙層截流井提出了3種截流控制方式。 （4）針對截流式分流制排水系統(tǒng)的特點，提出了初步設計和施工圖設計兩個階段的經(jīng)濟比選費用函數(shù)優(yōu)化模型。 （5）探討了截流式分流制排水系統(tǒng)設計的流程等其它問題，并運用上述研究成果，應用SWMM模型對重慶某片區(qū)截流式分流制排水系統(tǒng)進行了實際計算設計，表明研究提出的有關方法可行。
[Abstract]:Over the past 30 years separate urban drainage system has been widely used in our country, with the design specification "outdoor drainage >GB50014-2006 (2011 Revision) issued and implemented, can foresee the diversion system of urban drainage system will be further applied. The initial rainfall runoff pollution problem has received worldwide attention, in my in China, with the urban sewage point sources of pollution through the construction of a large number of urban sewage plant and gradually control, the initial rainfall runoff pollution will increasingly become one of the main urban water environment problem. At present our country is in the initial rainfall runoff pollution has been carried out some research, individual city has even begun planning and design. The implementation of separate system with interception system, but on the whole, intercepting the planning and design of the separate system has not been applied, systematic design theory However, the design and research of urban drainage system with intercepting diversion is very necessary and urgent. It has become an important topic of urban drainage system construction and urban water environment protection and restoration in the future.
In this paper, the initial rainfall runoff control technology at home and abroad and its design and application are reviewed and analyzed, then propose some form of intercepting diverging urban drainage system, and some main design problems, such as interception, intercepting well pipe form, determination of design flow and system selection method and so on, are as follows:
(1) to conduct a comprehensive and in-depth analysis of intercepting diverging drainage system, in order to put forward 5 feasible system form closure tube + intercepting wells (type I), building a split double drainage pipe + double intercepting wells (type II), rainwater and sewage pipes + double intercepting wells (III), I type (or II III) + CSDT (IV type) and type I (or II, III, IV) +LID (V), and analyzes its application conditions for each system.
(2) analysis of the intercepting diverging drainage system cut-off flow, calculation of design flow pipe and storage tank volume and other key parameters, and puts forward the corresponding method. Respectively: 1): cut-off flow analysis +SWMM simulation with check using frequency rainfall rainfall data simulated area, determined by +SWMM lack of experience value the data area; 2) pipe segment design flow for the design flow intercepting well downstream water pipes, when intercepting well without closure peak runoff, calculated by the present method, when the closure part of peak runoff, peak flow to the design flow based on the closure before deduction of closure for storage tank; a flow tube design flow, should be determined according to the downstream drainage pipe or facility assimilative capacity; sewage pipe, pipe and storage tank closure inflow pipe flow distribution and design according to the sewage pipe The remaining capacity of the sewage plant and the principle of material balance are allocated and calculated. 3) the storage capacity of the storage tank should be determined according to the formula and through the SWMM simulation.
(3) put forward the alternative form of intercepting well for intercepting diversion system, and put forward the design method for the traditional weir (intercepting well with jump weir), and put forward 3 kinds of interception control methods for double decker wells.
(4) in view of the characteristics of the intercepting drainage system, a cost function optimization model for the two stages of the preliminary design and the design of the construction drawing is proposed.
(5) we have discussed the design process of intercepting diversion system and other problems. With the above research results, we have applied the SWMM model to the actual calculation and design of the closure diversion drainage system in a certain area of Chongqing, which indicates that the related methods are feasible.

【學位授予單位】：重慶大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU992.02

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