本文選題：透水路面　切入點(diǎn)：生物滯留　出處：《北京建筑大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著城市“雨水病”的日益加劇,透水路面和生物滯留作為應(yīng)用相對(duì)廣泛的低影響開發(fā)(LID)雨水管理控制技術(shù),越來越多的被應(yīng)用于城市道路、廣場(chǎng)等場(chǎng)所。目前,透水路面與生物滯留技術(shù)作為城市道路徑流雨水控制系統(tǒng)的核心技術(shù)已越來越多地組合采用,相比于透水路面或生物滯留等單一措施,聯(lián)合應(yīng)用在理論上能更有效的提高排水設(shè)計(jì)標(biāo)準(zhǔn)。而目前針對(duì)透水路面-生物滯留聯(lián)合應(yīng)用的設(shè)計(jì)等的研究很少,同時(shí)也缺乏對(duì)聯(lián)合應(yīng)用應(yīng)用過程中融雪劑問題的研究,因此本文主要進(jìn)行兩部分的研究：透水路面產(chǎn)流機(jī)理、排水系統(tǒng)設(shè)計(jì)及透水路面-生物滯留組合措施的水文學(xué)設(shè)計(jì)；融雪劑在生物滯留設(shè)施內(nèi)的富集遷移規(guī)律實(shí)驗(yàn)研究。 第一部分的研究包括以下內(nèi)容： (1)闡述了透水路面的產(chǎn)流機(jī)理,提出了基于有效飽和度的透水路面的水力傳導(dǎo)度計(jì)算方程,并對(duì)排水型透水路面的徑流系數(shù)進(jìn)行了討論。給出了應(yīng)用Ranieri模型設(shè)計(jì)縱坡較大路段的透水路面的流程。研究了透水路面的內(nèi)部排水系統(tǒng)設(shè)計(jì),同時(shí)對(duì)路面結(jié)構(gòu)的透水能力及面層下集水管的排水能力的計(jì)算方法進(jìn)行了研究。 (2)針對(duì)透水路面-生物滯留聯(lián)合應(yīng)用的銜接方式進(jìn)行了分類,并進(jìn)行比較,給出了不同類型銜接方式的適用場(chǎng)所及設(shè)計(jì)中需注意的問題,同時(shí)提出了不同類型銜接方式的簡(jiǎn)化模型及設(shè)計(jì)方法,聯(lián)合透水路面水文模型和生物滯留水文模型,可以構(gòu)建聯(lián)合應(yīng)用的水文分析模型。 (3)提出了基于最佳徑流控制效果的透水路面-生物滯留聯(lián)合應(yīng)用的設(shè)計(jì)思路,并對(duì)其中關(guān)鍵構(gòu)造溢流口提出了新的設(shè)計(jì)思路,并給出了相應(yīng)的設(shè)計(jì)方法。 第二部分的研究包括以下內(nèi)容及結(jié)論： (1)融雪劑的使用導(dǎo)致裝置種植土和介質(zhì)層中的融雪劑大量增加。隨著土壤深度的增加,融雪劑含量先小幅升高,后大幅降低； (2)隨著融雪劑的累積,不同介質(zhì)材料的土柱中各取樣點(diǎn)處鈉離子含量均出現(xiàn)一定程度的升高,隨著土壤深度的增加,融雪劑含量先小幅升高后大幅降低的趨勢(shì)基本不變,且融雪劑仍主要富集于種植土層0-20cm深范圍內(nèi)； (3)得出推論：在融雪劑播撒量不超過設(shè)施匯水面每平米30g的條件下,在全年降雪-降雨周期內(nèi),融雪劑在以爐渣和砂土作為介質(zhì)層且不設(shè)內(nèi)部蓄水層的生物滯留設(shè)施內(nèi)會(huì)經(jīng)過由不斷富集到全部被淋洗排除設(shè)施內(nèi)過程,但在冬季至雨季初期左右這段時(shí)間內(nèi),設(shè)施中會(huì)累積大量融雪劑,會(huì)對(duì)植物的生長(zhǎng)造成影響。 (4)針對(duì)融雪劑污染問題,提出了工程性、非工程性防治措施。
[Abstract]:As urban "Rain Water's disease" intensifies day by day, permeable pavement and biological retention, as a relatively wide range of low-impact development techniques for LID-#china_person1# management and control, are more and more used in urban roads, squares and other places. At present, As the core technology of urban road runoff control system, permeable pavement and biological retention technology have been used more and more, compared with single measures such as permeable pavement or biological retention. In theory, the combined application can improve the drainage design standard more effectively. However, there is little research on the combined application of permeable pavement and biological retention, and there is also a lack of research on the snow melting agent in the process of combined application. Therefore, this paper mainly carries out two parts of research: the mechanism of water permeable pavement, the design of drainage system and the hydrological design of the combination of permeable pavement and biological retention, and the experimental study on the enrichment and migration of snow melting agent in biological detention facilities. The first part of the study includes the following:. 1) the flow mechanism of permeable pavement is expounded, and the equation of hydraulic conductivity of permeable pavement based on effective saturation is put forward. The runoff coefficient of drainage permeable pavement is discussed, and the flow chart of designing permeable pavement with Ranieri model is given, and the design of internal drainage system of permeable pavement is studied. At the same time, the calculation method of the permeable capacity of pavement structure and the drainage capacity of the sewer under the surface layer is studied. (2) this paper classifies and compares the connection modes of the combined application of permeable pavement and biological retention, and gives the applicable places of different types of connection methods and the problems needing attention in the design. At the same time, the simplified models and design methods of different types of connection modes are put forward, which can be combined with the hydrological model of permeable pavement and the hydrological model of biological retention to construct the hydrological analysis model for joint application. The paper puts forward the design idea of the combined application of permeable pavement and biological retention based on the optimal runoff control effect, and puts forward a new design idea for the key structure overflow outlet, and gives the corresponding design method. The second part of the study includes the following contents and conclusions:. 1) the use of snow melting agent resulted in a large increase of snow melting agent in soil and medium layer. With the increase of soil depth, the content of snow melt agent increased slightly, then decreased significantly; (2) with the accumulation of snow melting agent, the content of sodium ion in the soil column of different medium materials increased to a certain extent, and with the increase of soil depth, the content of snow melting agent increased slightly first and then decreased substantially. And the snow melting agent is mainly concentrated in 0-20cm depth of planting soil layer. (3) deducing that, under conditions where the amount of snowmelt sowed does not exceed 30 g per square metre of the catchment surface of the facility, during the annual snowfall and rainfall cycle, The snow melting agent in the biological retention facilities with slag and sand as the medium layer and no internal water storage layer will undergo the process from continuous enrichment to all leaching and removal facilities, but during the period from winter to the beginning of the rainy season, The facility accumulates a large amount of snowmelt, which affects plant growth. 4) aiming at the problem of snow melting agent pollution, the engineering and non-engineering prevention measures are put forward.
【學(xué)位授予單位】：北京建筑大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TV213.9;TU992

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