2024城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃水力模型應(yīng)用規(guī)范

城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃水力模型城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃水力模型應(yīng)用規(guī)范目次1則 1總2語 2術(shù)3基規(guī)定 3模構(gòu)建測試 444.1一目次1則 1總2語 2術(shù)3基規(guī)定 3模構(gòu)建測試 444.1一規(guī)定 44.2資收集 44.3模構(gòu)建 54.4模測試 85 參率定模型證 95.1一規(guī)定 95.2率與驗標(biāo)準(zhǔn) 96模應(yīng)用 117模成果制 127.1一規(guī)定 127.2專報告 127.3模附件 12附錄A北市設(shè)降雨算方及附表 13附錄B源減排施模構(gòu)建 32本范用說明 35引標(biāo)準(zhǔn)錄 364CONTENTSGeneralprovisions 11223Basicregulations 34Modeldevelopmentandtest 4CONTENTSGeneralprovisions 11223Basicregulations 34Modeldevelopmentandtest 44.1Generalregulation 44.2Datacollection 44.3Modeldevelopment 54.4Modeltest 85Parametercalibrationandmodelvalidation 95.1Generalregulation 95.2Calibrationandvalidationcriteria 96Modelapplication 117Formulationofmodelresults 127.1Generalregulation 127.2Specialreport 127.3Modelaccessories 12AppendixADesignrainfallandschedulesofbeijing 13AppendixBConstructionofsourcecontrolfacilitiesmodel 32Explanationofwordinginthiscode 35Listofquotedstandards 3651總則1.0.1為提升北京市城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃設(shè)計工作科技水平和成果質(zhì)量，指導(dǎo)和規(guī)范城鎮(zhèn)雨洪模型應(yīng)用技術(shù)方法，制定本標(biāo)準(zhǔn)。1.0.2本標(biāo)準(zhǔn)適用于北京市行政區(qū)域內(nèi)新建、改建、擴建城鎮(zhèn)排水防澇系統(tǒng)的規(guī)劃和設(shè)計，以及內(nèi)澇積水過程模擬與分析。1.0.3本標(biāo)準(zhǔn)規(guī)定了城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃設(shè)計雨洪模型應(yīng)用的基及模型成果編制等相關(guān)工作的指導(dǎo)。1.0.4城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃設(shè)計雨洪模型除應(yīng)符合本標(biāo)準(zhǔn)外，尚應(yīng)符合國家及北京市現(xiàn)行有關(guān)標(biāo)準(zhǔn)的規(guī)定。1總則1.0.1為提升北京市城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃設(shè)計工作科技水平和成果質(zhì)量，指導(dǎo)和規(guī)范城鎮(zhèn)雨洪模型應(yīng)用技術(shù)方法，制定本標(biāo)準(zhǔn)。1.0.2本標(biāo)準(zhǔn)適用于北京市行政區(qū)域內(nèi)新建、改建、擴建城鎮(zhèn)排水防澇系統(tǒng)的規(guī)劃和設(shè)計，以及內(nèi)澇積水過程模擬與分析。1.0.3本標(biāo)準(zhǔn)規(guī)定了城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃設(shè)計雨洪模型應(yīng)用的基及模型成果編制等相關(guān)工作的指導(dǎo)。1.0.4城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃設(shè)計雨洪模型除應(yīng)符合本標(biāo)準(zhǔn)外，尚應(yīng)符合國家及北京市現(xiàn)行有關(guān)標(biāo)準(zhǔn)的規(guī)定。12 術(shù) 語城鎮(zhèn)雨洪模型urbanstormwatermodel2.0.1用于城鎮(zhèn)排水（雨水）系統(tǒng)規(guī)劃、設(shè)計及應(yīng)用的數(shù)學(xué)模型，包括產(chǎn)流模型、匯流模型、管渠（河道）水動力模型及地表漫流模型等。2.0.2產(chǎn)流模型flowgenerationmodel形成地表徑流過程的數(shù)學(xué)模型。2.0.3匯流模型flowroutingmodel過程的數(shù)學(xué)模型。2.0.4河道channel/riverhydrodynamicmodel2 術(shù) 語城鎮(zhèn)雨洪模型urbanstormwatermodel2.0.1用于城鎮(zhèn)排水（雨水）系統(tǒng)規(guī)劃、設(shè)計及應(yīng)用的數(shù)學(xué)模型，包括產(chǎn)流模型、匯流模型、管渠（河道）水動力模型及地表漫流模型等。2.0.2產(chǎn)流模型flowgenerationmodel形成地表徑流過程的數(shù)學(xué)模型。2.0.3匯流模型flowroutingmodel過程的數(shù)學(xué)模型。2.0.4河道channel/riverhydrodynamicmodel2.0.5地表漫溢模型overlandflowmodel程的數(shù)學(xué)模型。2.0.6雨量徑流系數(shù)volumetricrunoffcoefficient設(shè)定歷時內(nèi)降雨產(chǎn)生的徑流總量與總降雨量之比。2.0.7洪峰流量徑流系數(shù)peakrunoffcoefficient洪峰流量的徑流強度與形成洪峰流量歷時內(nèi)平均降雨強度之比。2.0.8模型測試modeltest計算的穩(wěn)定性進(jìn)行評判的過程。2.0.9參數(shù)率定parametercalibration調(diào)整模型參數(shù)使模型模擬結(jié)果與監(jiān)測數(shù)據(jù)相吻合的過程。2.0.10模型驗證modelvalidation根據(jù)獨立于參數(shù)率定選用的監(jiān)測數(shù)據(jù)檢查模型準(zhǔn)確性的過程。23基本規(guī)定3.0.1考慮城鎮(zhèn)范圍內(nèi)不同匯水區(qū)域地表滲透性能的差異、降雨時3.0.2根據(jù)規(guī)劃設(shè)計不同階段和模型應(yīng)用目的，城鎮(zhèn)排水防澇系統(tǒng)3基本規(guī)定3.0.1考慮城鎮(zhèn)范圍內(nèi)不同匯水區(qū)域地表滲透性能的差異、降雨時3.0.2根據(jù)規(guī)劃設(shè)計不同階段和模型應(yīng)用目的，城鎮(zhèn)排水防澇系統(tǒng)防澇工程設(shè)計方案。3.0.3模型的構(gòu)建和應(yīng)用應(yīng)明確規(guī)劃設(shè)計工況、模型方法、參數(shù)選取和邊界條件設(shè)置，并應(yīng)開展模型的不確定性分析。34模型構(gòu)建與測試4.1河道型構(gòu)建方法及參數(shù)應(yīng)參照附錄4模型構(gòu)建與測試4.1河道型構(gòu)建方法及參數(shù)應(yīng)參照附錄B滿足城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃設(shè)計需求。4.1.2當(dāng)模型資料范圍和精度不能滿足城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃設(shè)計雨洪模型構(gòu)建要求時，需開展補充測量和測驗工作。4.2資料收集4.2.1模型基礎(chǔ)數(shù)據(jù)資料宜包括降雨資料、地面高程資料、下墊面設(shè)施（位監(jiān)測資料、設(shè)施運行資料和邊界條件等。4.2.2模型應(yīng)收集的降雨資料通常包括長序列歷史降雨資料、場次監(jiān)測降雨資料和合成設(shè)計降雨，并應(yīng)符合下列規(guī)定：時間段內(nèi)數(shù)據(jù)間隔不宜大于1小時；的一次降雨發(fā)生過程，數(shù)據(jù)間隔宜采用5-10分鐘；合成設(shè)計降雨常用于分析一定重現(xiàn)期標(biāo)準(zhǔn)下的城市排水防澇5并應(yīng)參照附錄A44.2.3地面高程數(shù)據(jù)的精度應(yīng)根據(jù)模型類型確定。詳細(xì)模型的地面架模型不宜小于1:10000。4.2.412排水管渠（設(shè)施）資料宜包括：排水流域范圍、邊界條件及相應(yīng)排水體制；運行管理數(shù)據(jù)；4.2.3地面高程數(shù)據(jù)的精度應(yīng)根據(jù)模型類型確定。詳細(xì)模型的地面架模型不宜小于1:10000。4.2.412排水管渠（設(shè)施）資料宜包括：排水流域范圍、邊界條件及相應(yīng)排水體制；運行管理數(shù)據(jù)；4.2.5城鎮(zhèn)河道（蓄澇區(qū)）資料宜包括：河道斷面高程數(shù)據(jù)、河道斷面分區(qū)粗糙系數(shù)；蓄澇區(qū)底部地形、水深-容積關(guān)系曲線；水閘、4.2.6流量和水位監(jiān)測資料應(yīng)符合現(xiàn)行國家標(biāo)準(zhǔn)《城市排水防澇設(shè)施數(shù)據(jù)采集與維護(hù)技術(shù)規(guī)范》GB/T51187的有關(guān)規(guī)定，并應(yīng)符合下列規(guī)定：5min；4.3模型構(gòu)建4.3.1模型數(shù)據(jù)整理與導(dǎo)入過程應(yīng)包括數(shù)據(jù)導(dǎo)入模型軟件、拓?fù)浣Y(jié)設(shè)置等。54.3.2模型中的設(shè)計降雨應(yīng)根據(jù)城市氣象規(guī)律、匯水區(qū)域特征以及規(guī)劃設(shè)計需求等綜合確定，并應(yīng)符合下列規(guī)定：1~3h，并應(yīng)覆蓋系統(tǒng)完整匯流時間，最小時間步長5min；5min；4.3.2模型中的設(shè)計降雨應(yīng)根據(jù)城市氣象規(guī)律、匯水區(qū)域特征以及規(guī)劃設(shè)計需求等綜合確定，并應(yīng)符合下列規(guī)定：1~3h，并應(yīng)覆蓋系統(tǒng)完整匯流時間，最小時間步長5min；5min；4.3.3。表4.3.3產(chǎn)流模型方法及其參數(shù)選擇表3模型驗證相關(guān)標(biāo)準(zhǔn)和要求。4.3.4匯流模型選擇及參數(shù)設(shè)置應(yīng)符合下列規(guī)定：6產(chǎn)流模型方法方法概述主要參數(shù)固定徑流系數(shù)法降雨落到地面后按照徑流系數(shù)進(jìn)行凈雨量折減洪峰流量徑流系數(shù)雨量徑流系數(shù)徑流系數(shù)修正系數(shù)降雨徑流相關(guān)圖法70毫米13場，12613個水文流量站，151建立以不透水面積百分比為參數(shù)的降雨徑流相關(guān)圖不透水面積比例次降雨量（mm）次徑流深（mm）初損后損法降雨產(chǎn)流以前的總損失水量稱為初損，通常包括植物截留、填洼及產(chǎn)流前下滲的水量；后損即流域產(chǎn)流后下滲的水量。通常將流域分為透水區(qū)域和不透水區(qū)域，認(rèn)為在透水區(qū)域前、后損過程都會發(fā)生，而在不透水區(qū)域則只會發(fā)生前損植物截留量（mm）初始填洼量（mm）mm/h（如霍頓位線法等進(jìn)行地表匯流模擬，方法涉及主要參數(shù)詳見表4.3.4-1。表4.3.4匯流模型方法及其參數(shù)選擇表3宜運用實測資料對匯流模型參數(shù)進(jìn)行校正，并滿足參數(shù)率定與模型驗證相關(guān)標(biāo)準(zhǔn)和要求。（）管渠內(nèi)的水流運動模擬應(yīng)采用基于一維圣維南方程組的數(shù)值（表4.3.5-1、2選??；4.3.5-1不同類型材質(zhì)的管渠粗糙系數(shù)（n值）取值表4.3.5-2不同表面特征的河道粗糙系數(shù)（n值）取值表7河道表面特征曼寧粗糙系數(shù)n抹光的水泥抹面0.012光滑的護(hù)面0.015粗糙的護(hù)面0.017緊密黃土或細(xì)石樂土渠，有薄淤泥層0.018管渠類別曼寧粗糙系數(shù)n管渠類別曼寧粗糙系數(shù)n混凝土管、鋼筋混凝土管、水泥砂漿抹面渠道0.013~0.014位線法等進(jìn)行地表匯流模擬，方法涉及主要參數(shù)詳見表4.3.4-1。表4.3.4匯流模型方法及其參數(shù)選擇表3宜運用實測資料對匯流模型參數(shù)進(jìn)行校正，并滿足參數(shù)率定與模型驗證相關(guān)標(biāo)準(zhǔn)和要求。（）管渠內(nèi)的水流運動模擬應(yīng)采用基于一維圣維南方程組的數(shù)值（表4.3.5-1、2選取；4.3.5-1不同類型材質(zhì)的管渠粗糙系數(shù)（n值）取值表4.3.5-2不同表面特征的河道粗糙系數(shù)（n值）取值表7河道表面特征曼寧粗糙系數(shù)n抹光的水泥抹面0.012光滑的護(hù)面0.015粗糙的護(hù)面0.017緊密黃土或細(xì)石樂土渠，有薄淤泥層0.018管渠類別曼寧粗糙系數(shù)n管渠類別曼寧粗糙系數(shù)n混凝土管、鋼筋混凝土管、水泥砂漿抹面渠道0.013~0.014土明渠（包括帶草皮）0.025~0.030水泥砂漿內(nèi)襯球墨鑄鐵管0.011~0.012干砌塊石渠道0.020~0.025石棉水泥管、鋼管0.012漿砌塊石渠道0.017UPVC管、PE管、玻璃鋼管0.009~0.010漿砌磚渠道0.015匯流模型方法方法概述主要參數(shù)等流時線法將匯水區(qū)域劃分成為有限個等流時塊，每一個等流時塊在匯流時段內(nèi)的降雨徑流累加到達(dá)出口斷面匯流速度（匯流時間）匯流曲線類型非線性水庫把地表匯流看作是非線性水庫的調(diào)蓄過程特征寬度平均坡度地表粗糙系數(shù)時段單位線法單位時段均勻分布的單位凈雨量在出口斷面形成的流量過程線單位時段、單位凈雨（力波方法進(jìn)行模擬；河道河道4.4模型測試4.4.1在模型應(yīng)用前，應(yīng)對模型中排水防澇系統(tǒng)構(gòu)成要素空間分布現(xiàn)場勘查、人工經(jīng)驗判斷方式對發(fā)現(xiàn)的問題進(jìn)行處理。4.4.2在模型應(yīng)用前，應(yīng)對模型運行的穩(wěn)定性進(jìn)行測試和修正，修正后模型應(yīng)符合下列規(guī)定：12（力波方法進(jìn)行模擬；河道河道4.4模型測試4.4.1在模型應(yīng)用前，應(yīng)對模型中排水防澇系統(tǒng)構(gòu)成要素空間分布現(xiàn)場勘查、人工經(jīng)驗判斷方式對發(fā)現(xiàn)的問題進(jìn)行處理。4.4.2在模型應(yīng)用前，應(yīng)對模型運行的穩(wěn)定性進(jìn)行測試和修正，修正后模型應(yīng)符合下列規(guī)定：1234模型計算應(yīng)能夠正常收斂，計算過程應(yīng)基本穩(wěn)定；10%；5%；式應(yīng)符合實際情況或規(guī)劃設(shè)計工況。8河道表面特征曼寧粗糙系數(shù)n0.020.0225良好的干砌石渠道，養(yǎng)護(hù)條件中等的土渠0.025養(yǎng)護(hù)條件低于一般標(biāo)準(zhǔn)的土渠0.0275條件較差的土渠0.03條件很惡劣的渠道（如斷面不規(guī)則等）0.035條件異常惡劣的渠道（如有塌岸石塊等）0.045參數(shù)率定與模型驗證5.15.1.1參數(shù)率定與模型驗證步驟應(yīng)包括：足質(zhì)量和數(shù)量要求；實測數(shù)據(jù)的擬合程度是否滿足模型驗證標(biāo)準(zhǔn)。5.1.2參數(shù)率定和模型驗證數(shù)據(jù)可來自現(xiàn)場實測數(shù)據(jù)、調(diào)研數(shù)據(jù)、遙感數(shù)據(jù)等。5.1.3參數(shù)率定和模型驗證前，應(yīng)根據(jù)模型方法確定率定參數(shù)，并開展參數(shù)靈敏度分析。5.2率定與驗證標(biāo)準(zhǔn)5.2.1基于實測數(shù)據(jù)進(jìn)行參數(shù)率定和模型驗證時，應(yīng)滿足至少兩場獨立降雨事件的模擬結(jié)果與實測數(shù)據(jù)擬合程度符合相應(yīng)標(biāo)準(zhǔn)。5.2.2框架模型率定與驗證時應(yīng)確保模型模擬的內(nèi)澇積水點覆蓋常5參數(shù)率定與模型驗證5.15.1.1參數(shù)率定與模型驗證步驟應(yīng)包括：足質(zhì)量和數(shù)量要求；實測數(shù)據(jù)的擬合程度是否滿足模型驗證標(biāo)準(zhǔn)。5.1.2參數(shù)率定和模型驗證數(shù)據(jù)可來自現(xiàn)場實測數(shù)據(jù)、調(diào)研數(shù)據(jù)、遙感數(shù)據(jù)等。5.1.3參數(shù)率定和模型驗證前，應(yīng)根據(jù)模型方法確定率定參數(shù)，并開展參數(shù)靈敏度分析。5.2率定與驗證標(biāo)準(zhǔn)5.2.1基于實測數(shù)據(jù)進(jìn)行參數(shù)率定和模型驗證時，應(yīng)滿足至少兩場獨立降雨事件的模擬結(jié)果與實測數(shù)據(jù)擬合程度符合相應(yīng)標(biāo)準(zhǔn)。5.2.2框架模型率定與驗證時應(yīng)確保模型模擬的內(nèi)澇積水點覆蓋常見積水點和關(guān)鍵區(qū)域易澇點。5.2.3概化模型率定與驗證時，對于管渠（河道）水動力模型應(yīng)以為目標(biāo)函數(shù)，滿足以下標(biāo)準(zhǔn)之一：1h25%；應(yīng)小于0.5。5.2.4詳細(xì)模型率定與驗證時，對于管渠水動力模型除了滿足第5.2.390.5m0.1m0.5m0.1m0.1m5.2.5基于規(guī)劃設(shè)計數(shù)據(jù)構(gòu)建城鎮(zhèn)雨洪模型時，模型參數(shù)應(yīng)根據(jù)相關(guān)規(guī)劃設(shè)計工況和當(dāng)?shù)貧夂颉⒌乩?、水文等條件合理確定。106模型應(yīng)用6.0.1框架模型模擬對象包括地形等，模擬計算宜考慮排水防澇系用場景包括：1236.0.2輔助劃定匯水區(qū)域范圍，確定模型模擬邊界；快速識別低洼易澇區(qū)域，快速評估城鎮(zhèn)內(nèi)澇風(fēng)險；輔助編制總體規(guī)劃方案。6模型應(yīng)用6.0.1框架模型模擬對象包括地形等，模擬計算宜考慮排水防澇系用場景包括：1236.0.2輔助劃定匯水區(qū)域范圍，確定模型模擬邊界；快速識別低洼易澇區(qū)域，快速評估城鎮(zhèn)內(nèi)澇風(fēng)險；輔助編制總體規(guī)劃方案。（6.0.3詳細(xì)模型模擬對象包括地形、河道、蓄澇區(qū)、雨水管渠、雨6.0.16.0.2117模型成果編制7.17.1.17.1.2模型成果應(yīng)包括模型專題報告及模型附件兩部分。模型成果編制過程中應(yīng)遵循“完整真實、簡潔高效”的原則。7.27.2.1模型驗證、模擬工況與模擬結(jié)果、模擬結(jié)果分析及應(yīng)用結(jié)論等主要章節(jié)。7.37.3.1監(jiān)測數(shù)據(jù)記錄和模型過程數(shù)據(jù)。7.3.27模型成果編制7.17.1.17.1.2模型成果應(yīng)包括模型專題報告及模型附件兩部分。模型成果編制過程中應(yīng)遵循“完整真實、簡潔高效”的原則。7.27.2.1模型驗證、模擬工況與模擬結(jié)果、模擬結(jié)果分析及應(yīng)用結(jié)論等主要章節(jié)。7.37.3.1監(jiān)測數(shù)據(jù)記錄和模型過程數(shù)據(jù)。7.3.2模擬結(jié)果。7.3.37.3.4數(shù)設(shè)置表、時間序列數(shù)據(jù)表、其他數(shù)據(jù)記錄。7.3.5結(jié)果數(shù)據(jù)圖表。12附錄AA.0.1DB11/T969A.0.2352段雨量分配表如下：A.1Ⅰ區(qū)短歷時設(shè)計降雨不同時段雨量分配表（）13序號H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H5113.64217.88316.06422.12516.67613.63713.93814.84919.241015.641121.781212.901310.991419.451525.731619.081720.231813.92198.582012.462147.4322100.002352.572438.542537.722623.742741.852826.692931.463038.503136.63附錄AA.0.1DB11/T969A.0.2352段雨量分配表如下：A.1Ⅰ區(qū)短歷時設(shè)計降雨不同時段雨量分配表（）13序號H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H5113.64217.88316.06422.12516.67613.63713.93814.84919.241015.641121.781212.901310.991419.451525.731619.081720.231813.92198.582012.462147.4322100.002352.572438.542537.722623.742741.852826.692931.463038.503136.63A.2Ⅱ區(qū)短歷時設(shè)計降雨不同時段雨量分配表（%）14序號H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H5129.29239.69346.674100.00553.33634.55725.76849.88920.821041.021130.791228.191317.521415.061519.121626.121710.931811.251916.022014.862116.802213.882319.742418.712525.232615.732712.462816.762913.633016.193120.903218.21序號H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H53224.873314.613421.243519.633615.75A.2Ⅱ區(qū)短歷時設(shè)計降雨不同時段雨量分配表（%）14序號H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H5129.29239.69346.674100.00553.33634.55725.76849.88920.821041.021130.791228.191317.521415.061519.121626.121710.931811.251916.022014.862116.802213.882319.742418.712525.232615.732712.462816.762913.633016.193120.903218.21序號H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H53224.873314.613421.243519.633615.75A.0.3短歷時設(shè)計降雨各歷時雨量計算應(yīng)根據(jù)現(xiàn)行北京市暴雨強度公I(xiàn)35降雨過程如下：A.33小時歷時、5分鐘步長設(shè)計降雨過程表單位：mm15時段10年一遇5年一遇3年一遇2年一遇10.190.170.140.1320.250.220.190.1730.230.190.170.1540.310.270.230.2150.240.200.180.1660.190.170.140.1370.250.220.190.1780.270.230.200.1890.480.410.360.31100.390.330.290.26110.540.460.400.36120.320.270.240.21130.270.230.200.18140.480.410.360.32150.980.840.730.65160.730.620.540.48170.770.660.580.51180.530.450.400.35190.330.280.240.22200.480.410.350.31215.784.934.303.802212.6910.829.448.35236.415.464.774.21243.222.752.402.12253.152.692.352.07261.981.691.481.31271.891.621.411.25281.211.030.900.79序號H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H53313.243412.883515.143619.64A.0.3短歷時設(shè)計降雨各歷時雨量計算應(yīng)根據(jù)現(xiàn)行北京市暴雨強度公I(xiàn)35降雨過程如下：A.33小時歷時、5分鐘步長設(shè)計降雨過程表單位：mm15時段10年一遇5年一遇3年一遇2年一遇10.190.170.140.1320.250.220.190.1730.230.190.170.1540.310.270.230.2150.240.200.180.1660.190.170.140.1370.250.220.190.1780.270.230.200.1890.480.410.360.31100.390.330.290.26110.540.460.400.36120.320.270.240.21130.270.230.200.18140.480.410.360.32150.980.840.730.65160.730.620.540.48170.770.660.580.51180.530.450.400.35190.330.280.240.22200.480.410.350.31215.784.934.303.802212.6910.829.448.35236.415.464.774.21243.222.752.402.12253.152.692.352.07261.981.691.481.31271.891.621.411.25281.211.030.900.79序號H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H53313.243412.883515.143619.64A.43小時歷時、5分鐘步長設(shè)計降雨過程摘錄表，單位：mm16時段10年一遇5年一遇3年一遇2年一遇12.942.492.161.8925.935.024.353.8237.936.725.825.11414.4512.2410.619.3159.067.676.655.8465.164.373.793.3273.853.262.822.4885.004.243.673.2292.091.771.531.35103.152.672.312.03112.362.001.731.52122.161.831.591.39132.041.731.501.32141.761.491.291.13152.231.891.641.44163.052.582.231.96171.271.080.940.82181.311.110.960.84191.431.211.050.92201.331.120.970.86211.501.271.100.97221.241.050.910.80231.761.491.291.14241.671.421.231.08251.861.571.361.20261.160.980.850.75270.920.780.670.59時段10年一遇5年一遇3年一遇2年一遇291.421.211.060.94301.140.970.850.75311.090.930.810.71320.740.630.550.49330.270.230.200.17340.390.330.290.25350.360.300.270.23360.290.240.210.19累積雨量A.43小時歷時、5分鐘步長設(shè)計降雨過程摘錄表，單位：mm16時段10年一遇5年一遇3年一遇2年一遇12.942.492.161.8925.935.024.353.8237.936.725.825.11414.4512.2410.619.3159.067.676.655.8465.164.373.793.3273.853.262.822.4885.004.243.673.2292.091.771.531.35103.152.672.312.03112.362.001.731.52122.161.831.591.39132.041.731.501.32141.761.491.291.13152.231.891.641.44163.052.582.231.96171.271.080.940.82181.311.110.960.84191.431.211.050.92201.331.120.970.86211.501.271.100.97221.241.050.910.80231.761.491.291.14241.671.421.231.08251.861.571.361.20261.160.980.850.75270.920.780.670.59時段10年一遇5年一遇3年一遇2年一遇291.421.211.060.94301.140.970.850.75311.090.930.810.71320.740.630.550.49330.270.230.200.17340.390.330.290.25350.360.300.270.23360.290.240.210.19累積雨量50.2842.8737.4033.07A.0.42452時段雨量分配表如下：A.5Ⅰ區(qū)長歷時設(shè)計降雨不同時段雨量分配表（%）17序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H510.3320.2330.3940.3650.4460.4970.3680.1690.23100.42110.29120.16130.26140.36150.21160.31170.93181.69191.43201.32211.61221.95231.01時段10年一遇5年一遇3年一遇2年一遇281.231.040.900.79291.000.850.740.65301.191.010.870.77311.321.120.970.85321.150.970.840.74330.840.710.610.54340.810.690.600.52350.960.810.700.62361.241.050.910.80累積雨量98.3583.2872.1763.35A.0.42452時段雨量分配表如下：A.5Ⅰ區(qū)長歷時設(shè)計降雨不同時段雨量分配表（%）17序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H510.3320.2330.3940.3650.4460.4970.3680.1690.23100.42110.29120.16130.26140.36150.21160.31170.93181.69191.43201.32211.61221.95231.01時段10年一遇5年一遇3年一遇2年一遇281.231.040.900.79291.000.850.740.65301.191.010.870.77311.321.120.970.85321.150.970.840.74330.840.710.610.54340.810.690.600.52350.960.810.700.62361.241.050.910.80累積雨量98.3583.2872.1763.3518序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H5240.86250.73260.93270.93281.43292.81303.42315.78325.17334.79341.21351.81361.89372.13382.58391.98402.89414.18425.784310.26445.93457.22464.79475.93486.23494.33508.06517.64529.03539.445410559.31566.67576.25587.36598.33609.72618.196213.646317.886416.066522.1218序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H5240.86250.73260.93270.93281.43292.81303.42315.78325.17334.79341.21351.81361.89372.13382.58391.98402.89414.18425.784310.26445.93457.22464.79475.93486.23494.33508.06517.64529.03539.445410559.31566.67576.25587.36598.33609.72618.196213.646317.886416.066522.1219序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H56616.676713.636813.936914.847019.247115.647221.787312.97410.997519.457625.737719.087820.237913.92808.588112.468247.43831008452.578538.548637.728723.748841.858926.699031.469138.59236.639324.879414.619521.249619.639715.75983.72992.741002.431011.711021.621031.141041.661052.521061.811071.2819序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H56616.676713.636813.936914.847019.247115.647221.787312.97410.997519.457625.737719.087820.237913.92808.588112.468247.43831008452.578538.548637.728723.748841.858926.699031.469138.59236.639324.879414.619521.249619.639715.75983.72992.741002.431011.711021.621031.141041.661052.521061.811071.2820序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H51083.281091.991101.571111.521121.471131.051141.5711511161.281172.521182.281192.761203.421213.81224.9412321240.621250.431260.481270.481280.711290.671300.711310.381320.381330.521340.381350.431360.331370.241380.11390.241400.291410.91420.191430.191440.241450.481460.671470.331480.381490.4320序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H51083.281091.991101.571111.521121.471131.051141.5711511161.281172.521182.281192.761203.421213.81224.9412321240.621250.431260.481270.481280.711290.671300.711310.381320.381330.521340.381350.431360.331370.241380.11390.241400.291410.91420.191430.191440.241450.481460.671470.331480.381490.4321序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H51500.381510.331520.381530.331540.431550.571560.371570.241580.321590.421600.371610.561620.6116311642.041657.791667.131675.041681.951693.991701.521712.041722.81730.81740.81750.571760.361770.421780.421790.441800.391810.311820.231830.161840.181850.211860.211870.161880.231890.231900.231910.1821序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H51500.381510.331520.381530.331540.431550.571560.371570.241580.321590.421600.371610.561620.6116311642.041657.791667.131675.041681.951693.991701.521712.041722.81730.81740.81750.571760.361770.421780.421790.441800.391810.311820.231830.161840.181850.211860.211870.161880.231890.231900.231910.1822序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H51920.311930.341940.361950.551960.291970.131980.131990.162000.262010.182020.262031.482040.882050.472060.342070.62081.792090.62100.292110.392120.212130.292140.862150.962160.472170.342180.362190.492200.62210.392220.472230.362240.72252.492265.482273.272281.32291.222300.72311.122321.532331.4322序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H51920.311930.341940.361950.551960.291970.131980.131990.162000.262010.182020.262031.482040.882050.472060.342070.62081.792090.62100.292110.392120.212130.292140.862150.962160.472170.342180.362190.492200.62210.392220.472230.362240.72252.492265.482273.272281.32291.222300.72311.122321.532331.4323序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H52341.222350.752360.472370.342380.262390.232400.422410.652420.492430.442440.522450.472460.312470.442480.442490.342500.312510.362520.422530.392540.392550.552560.72570.752580.782590.522600.62610.862620.72631.432640.862650.732660.522670.832680.672690.912700.732711.122720.992730.522740.672751.1223序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H52341.222350.752360.472370.342380.262390.232400.422410.652420.492430.442440.522450.472460.312470.442480.442490.342500.312510.362520.422530.392540.392550.552560.72570.752580.782590.522600.62610.862620.72631.432640.862650.732660.522670.832680.672690.912700.732711.122720.992730.522740.672751.12A.6Ⅱ區(qū)長歷時設(shè)計降雨不同時段雨量分配表（%）24序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H510.0020.0030.0040.0050.0060.0070.0080.0090.00100.00110.00120.00130.00140.00150.00160.00170.00180.02190.02200.02210.00220.01230.01240.01250.00序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H52761.172770.992782.992791.822800.522810.162820.622831.132841.052851.162860.412870.382880.18A.6Ⅱ區(qū)長歷時設(shè)計降雨不同時段雨量分配表（%）24序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H510.0020.0030.0040.0050.0060.0070.0080.0090.00100.00110.00120.00130.00140.00150.00160.00170.00180.02190.02200.02210.00220.01230.01240.01250.00序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H52761.172770.992782.992791.822800.522810.162820.622831.132841.052851.162860.412870.382880.1825序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H5260.00270.00280.08290.03300.01310.00320.19330.04340.03350.08360.02370.12380.28390.27400.27410.28420.03430.15440.40450.54460.36471.06481.46491.80501.84513.32528.16535.57545.08553.66563.89572.58582.20592.11602.41613.69623.86634.35644.20653.32662.62672.3225序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H5260.00270.00280.08290.03300.01310.00320.19330.04340.03350.08360.02370.12380.28390.27400.27410.28420.03430.15440.40450.54460.36471.06481.46491.80501.84513.32528.16535.57545.08553.66563.89572.58582.20592.11602.41613.69623.86634.35644.20653.32662.62672.3226序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H5681.28691.44700.79710.59720.40730.47740.92751.34760.50770.52780.45790.39800.47810.46820.41830.41840.47850.52860.52870.51880.73890.73900.73910.40920.39930.34940.34950.25960.25970.25980.25990.301000.071010.071020.081030.211040.231050.291060.371070.381080.371090.3026序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H5681.28691.44700.79710.59720.40730.47740.92751.34760.50770.52780.45790.39800.47810.46820.41830.41840.47850.52860.52870.51880.73890.73900.73910.40920.39930.34940.34950.25960.25970.25980.25990.301000.071010.071020.081030.211040.231050.291060.371070.381080.371090.3027序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H51100.241110.511120.491130.171140.181150.181160.181170.181180.171190.121200.111210.061220.111230.171240.191250.281260.221270.271280.251290.081300.501310.361320.311330.311340.281350.291360.281370.301380.031390.031400.041410.031420.031430.031440.041451.591462.461470.711480.221490.211500.361511.8527序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H51100.241110.511120.491130.171140.181150.181160.181170.181180.171190.121200.111210.061220.111230.171240.191250.281260.221270.271280.251290.081300.501310.361320.311330.311340.281350.291360.281370.301380.031390.031400.041410.031420.031430.031440.041451.591462.461470.711480.221490.211500.361511.8528序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H51520.651530.391540.581550.951561.111572.351584.181593.621602.711610.961620.531630.461640.831650.751661.261671.601681.611691.181701.101710.961720.911730.831740.911750.851761.061771.041781.651791.231801.621813.401824.261831.131841.101850.901861.041870.961880.881891.481900.561910.631922.951933.7928序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H51520.651530.391540.581550.951561.111572.351584.181593.621602.711610.961620.531630.461640.831650.751661.261671.601681.611691.181701.101710.961720.911730.831740.911750.851761.061771.041781.651791.231801.621813.401824.261831.131841.101850.901861.041870.961880.881891.481900.561910.631922.951933.7929序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H51943.131953.731965.941974.661984.181993.592004.9420129.2920239.6920346.67204100.0020553.3320634.5520725.7620849.8820920.8221041.0221130.7921228.1921317.5221415.0621519.1221626.1221710.9321811.2521916.0222014.8622116.8022213.8822319.7422418.7122525.2322615.7322712.4622816.7622913.6323016.1923120.9023218.2123313.2423412.8823515.1429序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H51943.131953.731965.941974.661984.181993.592004.9420129.2920239.6920346.67204100.0020553.3320634.5520725.7620849.8820920.8221041.0221130.7921228.1921317.5221415.0621519.1221626.1221710.9321811.2521916.0222014.8622116.8022213.8822319.7422418.7122525.2322615.7322712.4622816.7622913.6323016.1923120.9023218.2123313.2423412.8823515.1430序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H523619.6423713.1923816.1923917.9224011.332417.712427.592435.302445.372453.182464.002473.642484.582494.912504.192515.222525.122533.842544.522554.542564.052573.242583.262594.262604.702614.862623.852632.532641.632651.542661.682671.432681.232692.092701.822711.402721.392731.902741.092751.782763.182771.6730序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H523619.6423713.1923816.1923917.9224011.332417.712427.592435.302445.372453.182464.002473.642484.582494.912504.192515.222525.122533.842544.522554.542564.052573.242583.262594.262604.702614.862623.852632.532641.632651.542661.682671.432681.232692.092701.822711.402721.392731.902741.092751.782763.182771.67A.0.5長歷時設(shè)計降雨各歷時雨量大小應(yīng)根據(jù)現(xiàn)行《北京市水文手冊24小時設(shè)計降雨量如下：A.724小時設(shè)計降雨量表單位：mm31地區(qū)20年30年50年100年200年中心城區(qū)265299343405465城市副中心239269306358408新城順義251283324383440亦莊242272309361412大興239269305356405昌平261297343408473房山249279316370421門頭溝289328378450521懷柔270306351416480密云235264300351400平谷230259294344392延慶148166189220251序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H52782.112791.642800.832811.042821.082831.302841.412851.772861.552871.032880.79A.0.5長歷時設(shè)計降雨各歷時雨量大小應(yīng)根據(jù)現(xiàn)行《北京市水文手冊24小時設(shè)計降雨量如下：A.724小時設(shè)計降雨量表單位：mm31地區(qū)20年30年50年100年200年中心城區(qū)265299343405465城市副中心239269306358408新城順義251283324383440亦莊242272309361412大興239269305356405昌平261297343408473房山249279316370421門頭溝289328378450521懷柔270306351416480密云235264300351400平谷230259294344392延慶148166189220251序號H1440-H720H720-H360H360-H240H240-H180H180-H150H150-H120H120-H90H90-H60H60-H45H45-H30H30-H15H15-H5H52782.112791.642800.832811.042821.082831.302841.412851.772861.552871.032880.79附錄B源頭減排設(shè)施模型構(gòu)建B.0.1（GB51222-2017）的相關(guān)規(guī)定，源頭減排設(shè)施可分為：123B.0.2滲透設(shè)施：透水路面、綠色屋頂、下凹式綠地、生物滯留設(shè)施；轉(zhuǎn)輸設(shè)施：植草溝、滲透管渠；調(diào)蓄設(shè)施。依據(jù)源頭減排設(shè)施類型，其模型宜包括：生物滯留、雨水花園、7蓄、滲透及蒸發(fā)等水文過程的概化，結(jié)合匯流模型和水質(zhì)模型，實現(xiàn)源頭減排設(shè)施對徑流量、峰值流量及徑流污染控制效果的模擬。B.0.3壤層、蓄水層、排水材料層和管渠層組合構(gòu)建形成，各單體模塊的結(jié)構(gòu)組成表如下：表B.1源頭減排設(shè)施模型各單體模塊結(jié)構(gòu)組成表注注：√為必選，＊為可選。B.0.4源頭減排設(shè)施模型各結(jié)構(gòu)層主要參數(shù)見表B.2，其各項參數(shù)應(yīng)根據(jù)實測資料或設(shè)計施工圖紙確定，缺乏資料時，可參照表B.3-B.9選取。表B.2源頭減排設(shè)施模型各結(jié)構(gòu)層主要參數(shù)表32結(jié)構(gòu)層參數(shù)/單位表面層護(hù)坡高度／ｍｍ植被容積表面粗糙度表面坡度（斜坡）蓄水層厚度／ｍｍ孔隙比滲透率堵塞因子路面透水層厚度／ｍｍ單體模塊表面層路面透水層土壤層蓄水層排水材料層管渠層生物滯留池√√√＊雨水花園√√綠色屋頂√√√滲透渠√√＊透水鋪裝√√＊√＊雨水桶√植草溝√附錄B源頭減排設(shè)施模型構(gòu)建B.0.1（GB51222-2017）的相關(guān)規(guī)定，源頭減排設(shè)施可分為：123B.0.2滲透設(shè)施：透水路面、綠色屋頂、下凹式綠地、生物滯留設(shè)施；轉(zhuǎn)輸設(shè)施：植草溝、滲透管渠；調(diào)蓄設(shè)施。依據(jù)源頭減排設(shè)施類型，其模型宜包括：生物滯留、雨水花園、7蓄、滲透及蒸發(fā)等水文過程的概化，結(jié)合匯流模型和水質(zhì)模型，實現(xiàn)源頭減排設(shè)施對徑流量、峰值流量及徑流污染控制效果的模擬。B.0.3壤層、蓄水層、排水材料層和管渠層組合構(gòu)建形成，各單體模塊的結(jié)構(gòu)組成表如下：表B.1源頭減排設(shè)施模型各單體模塊結(jié)構(gòu)組成表注注：√為必選，＊為可選。B.0.4源頭減排設(shè)施模型各結(jié)構(gòu)層主要參數(shù)見表B.2，其各項參數(shù)應(yīng)根據(jù)實測資料或設(shè)計施工圖紙確定，缺乏資料時，可參照表B.3-B.9選取。表B.2源頭減排設(shè)施模型各結(jié)構(gòu)層主要參數(shù)表32結(jié)構(gòu)層參數(shù)/單位表面層護(hù)坡高度／ｍｍ植被容積表面粗糙度表面坡度（斜坡）蓄水層厚度／ｍｍ孔隙比滲透率堵塞因子路面透水層厚度／ｍｍ單體模塊表面層路面透水層土壤層蓄水層排水材料層管渠層生物滯留池√√√＊雨水花園√√綠色屋頂√√√滲透渠√√＊透水鋪裝√√＊√＊雨水桶√植草溝√B.3綠色屋頂參數(shù)取值參考B.4生物滯留設(shè)施參數(shù)取值參考B.5植草溝參數(shù)取值參考33參數(shù)范圍（m）蓄水層深度0.15-0.25寬度0.5-2.0表面坡度（%）0.3-5.0邊坡坡度（水平：垂直）2.5:1-4:1表面糙度（n）0.03-0.2參數(shù)范圍（mm）蓄水層深度200-300土壤層厚度300-1000土壤層飽和導(dǎo)水率（mm/h)50-150孔隙率0.4-0.6田間持水量0.10-0.25凋萎點0.04-0.15排水礫石層深度200-300參數(shù)范圍（mm)土壤層厚度300-600孔隙率0.5-0.6田間持水量0.3-0.4凋萎點0.05-0.2B.3綠色屋頂參數(shù)取值參考B.4生物滯留設(shè)施參數(shù)取值參考B.5植草溝參數(shù)取值參考33參數(shù)范圍（m）蓄水層深度0.15-0.25寬度0.5-2.0表面坡度（%）0.3-5.0邊坡坡度（水平：垂直）2.5:1-4:1表面糙度（n）0.03-0.2參數(shù)范圍（mm）蓄水層深度200-300土壤層厚度300-1000土壤層飽和導(dǎo)水率（mm/h)50-150孔隙率0.4-0.6田間持水量0.10-0.25凋萎點0.04-0.15排水礫石層深度200-300參數(shù)范圍（mm)土壤層厚度300-600孔隙率0.5-0.6田間持水量0.3-0.4凋萎點0.05-0.2飽和導(dǎo)水率（mm/h)100-300排水層厚度20-50孔隙比滲透系數(shù)堵塞因子土壤層厚度／ｍｍ空隙度持水率枯萎點導(dǎo)水率導(dǎo)水坡度吸水高度／ｍｍ排水材料厚度／ｍｍ孔隙比粗糙度管渠層流量系數(shù)流量指數(shù)偏移高度／ｍｍB.6下凹式綠地參數(shù)取值參考B.7透水鋪裝參數(shù)取值參考B.8不同土壤類型參數(shù)取值參考34土壤類型土壤空隙度持水率枯萎點導(dǎo)水率mm/h砂土壤土黏質(zhì)壤土砂質(zhì)黏土粉質(zhì)黏土黏土0.4370.4370.4530.4630.5010.3980.4640.4710.4300.4790.4750.0620.1050.190.232B.6下凹式綠地參數(shù)取值參考B.7透水鋪裝參數(shù)取值參考B.8不同土壤類型參數(shù)取值參考34土壤類型土壤空隙度持水率枯萎點導(dǎo)水率mm/h砂土壤土黏質(zhì)壤土砂質(zhì)黏土粉質(zhì)黏土黏土0.4370.4370.4530.4630.5010.3980.4640.4710.4300.4790.4750.0620.1050.190.2320.2840.2440.310.3420.3210.3710.3780.0240.0470.0850.1160.1350.1360.1870.2100.2210.2510.265120.39629.97210.9223.3026.6041.5241.0161.0160.5080.5080.254參數(shù)范圍（mm)鋪裝厚度75-200面層滲透性（mm/h）500-3500滲透性（mm/h)125-3500砂濾層厚度300-500砂濾層孔隙率0.4-0.6砂濾層飽和導(dǎo)水率（mm/h)100-200參數(shù)范圍（mm)蓄水層深度50-150飽和導(dǎo)水率（mm/h)50-150孔隙率0.4-0.6本規(guī)范用詞說明1明如下：1）表示很嚴(yán)格，非這樣做不可的用詞：本規(guī)范用詞說明1明如下：1）表示很嚴(yán)格，非這樣做不可的用詞：4）2本規(guī)范中指明應(yīng)按其他有關(guān)標(biāo)準(zhǔn)執(zhí)行的寫法為“應(yīng)符合……的規(guī)定”35引用標(biāo)準(zhǔn)名錄123《城市排水防澇設(shè)施數(shù)據(jù)采集與維護(hù)技術(shù)規(guī)范》GB/T《城鎮(zhèn)內(nèi)澇防治技術(shù)規(guī)范》GB51222引用標(biāo)準(zhǔn)名錄123《城市排水防澇設(shè)施數(shù)據(jù)采集與維護(hù)技術(shù)規(guī)范》GB/T《城鎮(zhèn)內(nèi)澇防治技術(shù)規(guī)范》GB51222《城鎮(zhèn)雨水系統(tǒng)規(guī)劃設(shè)計暴雨徑流計算標(biāo)準(zhǔn)》DB11/T5118796936北京市地方標(biāo)準(zhǔn)城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃水力模型應(yīng)用規(guī)范CodeforapplicationofstormwaterfloodmodelinurbandrainageandurbanfloodcontrolsystemplanninganddesignDB11/T xxxx—北京市地方標(biāo)準(zhǔn)城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃水力模型應(yīng)用規(guī)范CodeforapplicationofstormwaterfloodmodelinurbandrainageandurbanfloodcontrolsystemplanninganddesignDB11/T xxxx—20xx條文說明20xx 北京37目次1總 則 39基本規(guī)定 4034模型構(gòu)建與測試 414.1一規(guī)定 414.2資收集 41目次1總 則 39基本規(guī)定 4034模型構(gòu)建與測試 414.1一規(guī)定 414.2資收集 414.3模構(gòu)建 44模測試 544.45參數(shù)率定與模型驗證 565.1一規(guī)定 565.2率與驗標(biāo)準(zhǔn) 576模型應(yīng)用 59模型成果編制 6277.1一規(guī)定 627.2專報告 627.3模附件 63381總則（雨水1總則（雨水作。（雨水）防澇系規(guī)劃設(shè)計計算。但針對新建項目，其規(guī)劃設(shè)計的場景是由一系列設(shè)計參數(shù)組合而成的特殊場景，是來自于實踐的經(jīng)驗總結(jié)，可通過實際降雨徑流事件進(jìn)行類比、評估，不斷修正設(shè)計參數(shù)，而無法通過“參數(shù)率定與模型驗證”進(jìn)行模型分析成果的修正和驗證。這種思路適用于新建工程的規(guī)劃設(shè)計計算。（雨水（雨水?dāng)?shù)。GB50014《城鎮(zhèn)內(nèi)澇防治技術(shù)規(guī)范》GB51222GB50318GB/T51187GB/TT/CECS647DB11/685。393基本規(guī)定規(guī)定城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃設(shè)計雨洪模型應(yīng)用的前提條件。我國目前采用推理公式計算雨水設(shè)計流量。流推理公式基于以下假設(shè)：降雨在整個匯水面積上的分布是均勻的；降雨強度在選定的降雨時段內(nèi)恒定不變；匯水面積隨匯流時間增長的速度為常數(shù)，因此推理公式適用于較小規(guī)模排水系統(tǒng)的設(shè)計計算，當(dāng)應(yīng)用于較大規(guī)模排水系統(tǒng)的設(shè)計計算時會產(chǎn)生較大誤差。隨著技術(shù)的進(jìn)步，管渠直徑的增大、水泵能力的提高，排水系統(tǒng)匯水面積逐步擴大，排水系統(tǒng)區(qū)域內(nèi)往往存在地表滲透性能差異較大、降雨在時空分布的不均勻、管網(wǎng)匯流過程較為復(fù)雜等情況。發(fā)達(dá)國家已采用數(shù)值模型分析城市雨洪形成、發(fā)展和消退的整個過程，把城鎮(zhèn)排水防澇系統(tǒng)作為一個整體考慮，并利用城鎮(zhèn)雨洪模型技術(shù)進(jìn)行相關(guān)工程的規(guī)劃、設(shè)計和運行管理。3基本規(guī)定規(guī)定城鎮(zhèn)排水防澇系統(tǒng)規(guī)劃設(shè)計雨洪模型應(yīng)用的前提條件。我國目前采用推理公式計算雨水設(shè)計流量。流推理公式基于以下假設(shè)：降雨在整個匯水面積上的分布是均勻的；降雨強度在選定的降雨時段內(nèi)恒定不變；匯水面積隨匯流時間增長的速度為常數(shù)，因此推理公式適用于較小規(guī)模排水系統(tǒng)的設(shè)計計算，當(dāng)應(yīng)用于較大規(guī)模排水系統(tǒng)的設(shè)計計算時會產(chǎn)生較大誤差。隨著技術(shù)的進(jìn)步，管渠直徑的增大、水泵能力的提高，排水系統(tǒng)匯水面積逐步擴大，排水系統(tǒng)區(qū)域內(nèi)往往存在地表滲透性能差異較大、降雨在時空分布的不均勻、管網(wǎng)匯流過程較為復(fù)雜等情況。發(fā)達(dá)國家已采用數(shù)值模型分析城市雨洪形成、發(fā)展和消退的整個過程，把城鎮(zhèn)排