本文選題：雨水徑流 + 道路排水系統(tǒng)　； 參考：《西南交通大學(xué)》2015年碩士論文

【摘要】：城市化的快速發(fā)展改變了城市下墊面性質(zhì),使原本可通過(guò)自然滲透排除的雨水在不透水的硬化地面形成快速?gòu)搅?再加上相對(duì)封閉的雨水排水管網(wǎng)的傳輸,使得城市低洼區(qū)域內(nèi)澇加重。同時(shí),降雨在沖刷城市地面過(guò)程中還會(huì)帶來(lái)面源污染,嚴(yán)重影響城市水體的水質(zhì)。因此,我國(guó)開(kāi)始提出在城鎮(zhèn)化建設(shè)中采用LID (Low impact development)思想體系,建設(shè)LID工程(即海綿城市)。本文在充分分析我國(guó)城市排水、防洪防澇等體系的基礎(chǔ)上,提出了旨在削減城市徑流峰值流量和源頭污染負(fù)荷的新的雨水排水體系,即采用人工濕地與城市道路排水相結(jié)合的工程設(shè)計(jì)理論,形成一種人工濕地-雨水排水管網(wǎng)相結(jié)合的復(fù)合式排水系統(tǒng)。本文以成都市某主干道排水工程為例,通過(guò)分析研究對(duì)象的地勢(shì)分布情況和城市徑流走向,提出了人工濕地工程實(shí)施布點(diǎn)的原則,根據(jù)城市地勢(shì)整體分布情況選定濕地工程布置路線,再以道路沿線的水域分布情況確定濕地工程局部布置點(diǎn)。以服務(wù)區(qū)的匯水量為濕地工程的徑流處理量,結(jié)合人工濕地污水處理原理,給出人工濕地與道路排水系統(tǒng)銜接的設(shè)計(jì)方法、濕地工程設(shè)計(jì)計(jì)算方法,并以此完成實(shí)際案例中人工濕地的構(gòu)造和結(jié)構(gòu)尺寸設(shè)計(jì)。本研究系統(tǒng)屬于一種雨水生物滯留與處理的工程系統(tǒng),系統(tǒng)特點(diǎn)可概括為“因地制宜,見(jiàn)縫插針”,即人工濕地工程以小型、分散、靈活以及量多的形式布置在城市不同地區(qū),可以根據(jù)現(xiàn)場(chǎng)條件靈活選擇濕地的設(shè)計(jì)和布置形式,不需要對(duì)城市已有建設(shè)進(jìn)行大范圍改造,對(duì)環(huán)境的影響程度降到最低。這種設(shè)計(jì)計(jì)算理論與方法為實(shí)際工作中人工濕地徑流處置工程應(yīng)用提供了一定的參考價(jià)值。
[Abstract]:The rapid development of urbanization has changed the nature of the underlying surface of the city, making it possible for Rain Water, which could be eliminated by natural infiltration, to form rapid runoff on the impervious and hardened ground, plus the transmission of relatively closed Rain Water drainage networks. The waterlogging in the low-lying areas of the city is aggravated. At the same time, rainfall will bring non-point source pollution in the process of scouring the urban surface, which seriously affects the water quality of urban water. Therefore, our country began to put forward the idea of adopting the low impact development system in the construction of urbanization, and constructing the lid project (that is, the sponge city). Based on the analysis of urban drainage, flood control and waterlogging prevention and control systems in China, a new Rain Water drainage system is proposed in this paper, which aims to reduce the peak flow of urban runoff and the pollution load at the source. Using the engineering design theory of combining artificial wetland and urban road drainage, a combined drainage system of constructed wetland and Rain Water drainage pipe network is formed. Taking the drainage project of a main road in Chengdu as an example, this paper puts forward the principle of distribution of constructed wetland by analyzing the distribution of topography and the trend of urban runoff. According to the overall distribution of urban topography, the layout route of wetland project is selected, and the local layout point of wetland project is determined by the distribution of water area along the road. Taking the water sink of the service area as the runoff treatment capacity of the wetland project, combined with the principle of sewage treatment of the constructed wetland, the design method of the connection between the constructed wetland and the road drainage system and the design and calculation method of the wetland project are given. The construction and structure size design of constructed wetland in practical case is completed. This research system belongs to a kind of Rain Water biological retention and treatment engineering system, the system characteristic can be summarized as "according to the local conditions, see the stitches", that is, the constructed wetland project is arranged in different areas of the city in the form of small scale, dispersion, flexibility and quantity. The design and layout of wetland can be flexibly selected according to the site conditions. It is not necessary to transform the existing urban construction on a large scale and the impact on the environment is reduced to the minimum. The theory and method of design and calculation provide a certain reference value for the engineering application of runoff disposal in constructed wetland.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TU992

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