本文關(guān)鍵詞： 雨水管網(wǎng)改建 多目標(biāo)優(yōu)化 耦合尋優(yōu) 可持續(xù)雨水系統(tǒng)　出處：《大連理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：近年來(lái),城市內(nèi)澇災(zāi)害頻繁發(fā)生,使城市蒙受大額經(jīng)濟(jì)財(cái)產(chǎn)損失,也給人們正常生產(chǎn)生活帶來(lái)諸多不便；不僅如此,城市內(nèi)澇還對(duì)自然和人居環(huán)境以及公共安全構(gòu)成重大隱患,在一定程度上制約社會(huì)的和諧、可持續(xù)發(fā)展。城市雨水管網(wǎng)作為城市排水(雨水)系統(tǒng)的關(guān)鍵組成部分,具有收集、排放地面雨水等的功能,在防洪排澇過(guò)程中發(fā)揮重要作用。目前一些城市的雨水管網(wǎng)呈現(xiàn)出許多弊端,如原有管網(wǎng)設(shè)計(jì)標(biāo)準(zhǔn)低、設(shè)計(jì)方法不合理、管網(wǎng)運(yùn)行過(guò)程中管理維護(hù)機(jī)制欠缺等。因此,研究如何經(jīng)濟(jì)合理地對(duì)現(xiàn)狀管網(wǎng)進(jìn)行改建,使其排水能力大幅提高,以滿足城市發(fā)展對(duì)排水工程的要求,是城市防洪除澇的重要內(nèi)容�，F(xiàn)狀對(duì)于城市雨水管網(wǎng)建設(shè)的研究多集中于新區(qū)管網(wǎng)優(yōu)化設(shè)計(jì)方面,受資料、資金及技術(shù)條件等的限制,老城區(qū)雨水管網(wǎng)優(yōu)化改建研究相對(duì)比較少。本文以大連市具有代表性的老城區(qū)排水區(qū)作為工程背景,從以下四個(gè)方面對(duì)城市雨水管網(wǎng)優(yōu)化改建進(jìn)行了深入研究：(1)以管徑為優(yōu)化變量,在以降低造價(jià)為目標(biāo)的單目標(biāo)優(yōu)化模型基礎(chǔ)上,加入提升排水能力和減少管段改建數(shù)量的目標(biāo),建立管網(wǎng)改建多目標(biāo)優(yōu)化模型,并應(yīng)用改進(jìn)遺傳算法NSGA-II進(jìn)行優(yōu)化計(jì)算,尋優(yōu)得到管徑組合改建方案；(2)基于Java運(yùn)行平臺(tái),將SWMM源代碼嵌入優(yōu)化算法NSGA-II中進(jìn)行尋優(yōu),實(shí)現(xiàn)了優(yōu)化算法與水力模型的耦合,減少尋優(yōu)與結(jié)果模擬之間的人工操作,大幅提高計(jì)算精度與效率；(3)在優(yōu)化結(jié)果基礎(chǔ)上,利用多目標(biāo)模糊優(yōu)選模型對(duì)可行改建方案集進(jìn)行篩選,加入決策者的主觀意愿,滿足不同規(guī)劃目標(biāo)與需求,改建方案更具靈活性與可行性；(4)基于低影響開發(fā)可持續(xù)雨水系統(tǒng)理論,在現(xiàn)狀管網(wǎng)基礎(chǔ)上加入蓄水池、透水磚、植被緩沖帶等附屬設(shè)施及構(gòu)筑物,并對(duì)各方案進(jìn)行模擬,評(píng)估改建效果、經(jīng)濟(jì)指標(biāo)與社會(huì)價(jià)值。本文以費(fèi)用、施工、排水能力等為目標(biāo)函數(shù),建立管網(wǎng)改建多目標(biāo)優(yōu)化模型,用優(yōu)化算法耦合水力學(xué)計(jì)算軟件篩選尋優(yōu),用多目標(biāo)模糊優(yōu)選模型進(jìn)行方案優(yōu)選,結(jié)合先進(jìn)的雨水管理理念對(duì)排水系統(tǒng)進(jìn)行完善,以期在城內(nèi)內(nèi)澇治理方面具有借鑒與應(yīng)用價(jià)值。
[Abstract]:In recent years, urban waterlogging disasters occur frequently, which make the city suffer a large amount of economic property losses, but also bring many inconvenience to people's normal production and life. Moreover, urban waterlogging also poses a major hidden danger to the natural and human environment as well as public safety. To a certain extent, it restricts the harmonious and sustainable development of society. As a key component of urban drainage system (Rain Water), urban rainwater network has the functions of collecting, discharging and so on. It plays an important role in the process of flood control and drainage. At present, there are many disadvantages in rainwater pipe network in some cities, such as the low design standard of the original pipe network, the unreasonable design method, the lack of management and maintenance mechanism in the operation of the pipe network, and so on. This paper studies how to reconstruct the present pipe network economically and reasonably so that its drainage capacity can be greatly improved in order to meet the requirements of urban development for drainage works. It is an important content of urban flood control and waterlogging. The current research on urban rainwater pipe network construction is mainly focused on the optimization design of new district pipe network, restricted by the data, funds and technical conditions, etc. The research on the optimization and reconstruction of the rainwater pipe network in the old urban area is relatively few. This paper takes the representative drainage area of Dalian as the engineering background. From the following four aspects, the optimization and reconstruction of urban rainwater pipe network are studied in depth. (1) taking pipe diameter as optimization variable, on the basis of single objective optimization model with the goal of reducing cost, adding the goal of increasing drainage capacity and reducing the number of pipe segment remodeling. The multi-objective optimization model of pipe network reconstruction is established, and the optimized calculation is carried out by using the improved genetic algorithm (NSGA-II), and the pipe-diameter combination reconstruction scheme is obtained. Based on the Java running platform, the SWMM source code is embedded in the optimization algorithm NSGA-II for optimization. The coupling of optimization algorithm and hydraulic model is realized, the manual operation between optimization and result simulation is reduced, and the calculation accuracy and efficiency are greatly improved. The multi-objective fuzzy optimal selection model is used to screen the set of feasible reconstruction schemes, and the subjective will of the decision makers is added to meet the different planning objectives and needs. The reconstruction scheme is more flexible and feasible. Based on the theory of developing sustainable Rain Water system with low influence, we add water storage tank, permeable brick, vegetation buffer zone and other ancillary facilities and structures to the current pipe network, and simulate each scheme. In this paper, the cost, construction and drainage capacity are taken as objective functions to set up a multi-objective optimization model for pipe network reconstruction, and the optimization algorithm is used to combine the hydraulic calculation software to screen and search for optimization. The multi-objective fuzzy optimal selection model is used to optimize the scheme and the advanced management concept of Rain Water is used to perfect the drainage system in order to have reference and application value in the control of waterlogging in the city.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU992

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