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  本文選題：LID + SWMM�。� 參考：《武漢理工大學(xué)》2015年碩士論文

【摘要】：城市化建設(shè)改變了流域的水文特性,原有的雨水排水系統(tǒng)不堪負重,很多城市都出現(xiàn)了不同程度的洪澇災(zāi)害,初雨的徑流污染更影響了水體的環(huán)境,基于源頭控制的低影響開發(fā)(LID)技術(shù)被引入。武漢市是城市圈大、湖泊河流污染嚴(yán)重的典型城市,解決洪澇災(zāi)害,控制徑流污染,成為武漢的一個重要課題。研究LID技術(shù)對雨洪管理的效能,彌補雨水管理措施上的欠缺,對改善武漢市的現(xiàn)狀具有重要意義。本文以武漢市保利拉菲小區(qū)為研究對象,選取適宜的LID措施,利用SWMM軟件構(gòu)建了研究區(qū)域的水力水質(zhì)模型,對小區(qū)設(shè)置LID措施前后的水量水質(zhì)進行了模擬,得到了針對不同需求的LID組合方案,提出了武漢市LID設(shè)置標(biāo)準(zhǔn)。本文的主要研究結(jié)論如下:(1)對保利拉菲小區(qū)開發(fā)前后的降雨徑流的模擬結(jié)果表明,開發(fā)后徑流量提高幅度較大。(2)模擬得到了設(shè)置單一LID措施后排出口P1的流量過程線,以及不同重現(xiàn)期條件下不同措施對徑流峰值的削減率。(3)提出了武漢市以削峰為主要功能LID組合方案的設(shè)置標(biāo)準(zhǔn):70%滲透鋪裝(停車場及人行道面積的70%為滲透鋪裝,占小區(qū)總面積的6.25%);30%下凹式綠地(下凹式綠地為綠地面積的30%,占小區(qū)總面積15.3%),下凹深度為125mm;分流式調(diào)蓄池設(shè)置標(biāo)準(zhǔn)為267m3/10000m2硬化面積,分流管偏移5-6cm。(4)得到了截流式調(diào)蓄池(200m3/10000m2硬化面積)、30%下凹式綠地、微型調(diào)蓄池(45m3/10000m2硬化面積)、分流式調(diào)蓄池(135m3/10000m2硬化面積)、70%滲透鋪裝對徑流中污染物的削減率。(5)得到了分別控制15mm和25mm降雨的LID組合方案的設(shè)置參數(shù)。(6)提出了武漢市兼具削峰和控污功能LID組合方案的設(shè)置標(biāo)準(zhǔn):當(dāng)30%下凹式綠地且下凹深度為125mm、70%滲透鋪裝時,對應(yīng)P=10a的降雨,截流式調(diào)蓄池設(shè)置標(biāo)準(zhǔn)宜取500 m3/10000m2硬化面積。對單一LID措施和LID組合方案的模擬分析結(jié)果,可為LID在武漢地區(qū)的推廣應(yīng)用可提供技術(shù)支持。
[Abstract]:The construction of urbanization has changed the hydrological characteristics of the watershed, the original drainage system of Rain Water is overloaded, many cities have suffered different degrees of flood disaster, and the runoff pollution of the initial rain has even affected the water body environment. Low impact Development (LID-based) based on Source Control was introduced. Wuhan is a typical city with large urban circle and serious pollution of lakes and rivers. It is an important subject to solve flood disaster and control runoff pollution in Wuhan. It is of great significance to study the effectiveness of LID technology in rain and flood management and to make up for the shortage of Rain Water's management measures to improve the present situation of Wuhan. In this paper, taking Baoleifei district in Wuhan as the research object, selecting suitable LID measures, using SWMM software to construct the hydraulic water quality model of the study area, and simulating the quantity and quality of water quality before and after the LID measures are set up in the residential area. The LID combination scheme for different needs is obtained, and the LID setting standard of Wuhan City is put forward. The main conclusions of this paper are as follows: 1) the simulation results of rainfall runoff before and after the development of Poly Lafi district show that the runoff increases greatly after development. (2) the flow process line of exit P1 after setting a single LID measure is obtained by simulation. And the reduction rate of runoff peak value by different measures under different recurrence period.) the setting standard of LID combination scheme with peak cutting as the main function in Wuhan is put forward. The standard of seepage pavement is 70% (70% of parking lot and sidewalk area is permeable pavement). It accounts for 6.25% of the total area of the residential area and 30% of the total area of the residential area. (the concave greenbelt is 30% of the green area, the total area of the plot is 15.3mm, the depth of the concave is 125mm, and the setting standard of the shunt storage pool is 267m3/10000m2 hardened area. The shunt tube offset 5-6 cm. 4) the closed type storage tank (200m3 / 10000m2) has a hardened area of 30% concave green space. The reduction rate of pollutants in runoff by 70% permeable surfacing of 45 m3 / 10000m2 hardened area and 135m3 / 10000m2 hardened area of split storage tank was obtained. The setting parameters of LID combination scheme for controlling 15mm and 25mm rainfall respectively were obtained. The setting parameters of LID combination scheme for controlling rainfall of 15mm and 25mm were put forward. Setting standard of LID combination scheme with peak cutting and pollution control function: when 30% concave green space with a concave depth of 125 mm or 70% penetration pavement, According to the rainfall of Pu 10a, the setting standard of the intercepting storage tank should be 500 m3/10000m2 hardening area. The simulation results of single LID measure and LID combination scheme can provide technical support for the popularization and application of LID in Wuhan area.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：X52;TU992

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本文編號：1841109