給水排水管網(wǎng)課程設計說明書與計算書

目錄摘要 錯誤！未定義書簽第一章給水管網(wǎng)的設計說明 錯誤！未定義書簽1.1給水管網(wǎng)布置的影響因素 錯誤！未定義書簽1.2管網(wǎng)系統(tǒng)布置原則 .錯誤！未定義書簽1.3配水管網(wǎng)布置 錯誤！未定義書簽1.4給水管網(wǎng)設計計算 .錯誤！未定義書簽1.5設計用水量的組成 .錯誤！未定義書簽1.6設計用水量的計算 .錯誤！未定義書簽1.7最高日最高時用水量 .錯誤！未定義書簽1.8泵站供水流量設計 .錯誤！未定義書簽1.9清水池和水塔有效容積的計算 錯誤！未定義書簽1.10管網(wǎng)水力計算 錯誤！未定義書簽1.11管網(wǎng)平差計算 錯誤！未定義書簽1.12水泵選擇 錯誤！未定義書簽1.13等水壓線圖繪制 錯誤！未定義書簽1.14多定壓節(jié)點管網(wǎng)圖繪制 錯誤！未定義書簽第二章排水管網(wǎng)設計說明與計算 錯誤！未定義書簽2.1排水系統(tǒng)的布置形式 .錯誤！未定義書簽2.2污水管網(wǎng)的布置 錯誤！未定義書簽2.3污水管道的定線 錯誤！未定義書簽2.4控制點的確定 錯誤！未定義書簽2.5污水管道系統(tǒng)設計參數(shù) 錯誤！未定義書簽2.6污水管道系統(tǒng)水力計算 錯誤！未定義書簽2.7污水干管設計流量計算 錯誤！未定義書簽2.8污水管道水力計算 .錯誤！未定義書簽2.9管道平面圖及剖面圖的繪制 錯誤！未定義書簽第三章雨水設計說明與計算 錯誤！未定義書簽3.1雨水干管水力計算 .錯誤！未定義書簽3.2雨水管網(wǎng)設計說明與計算 錯誤！未定義書簽3.3雨水管網(wǎng)的圖紙繪制 .錯誤！未定義書簽總結與體會 錯誤！未定義書簽參考文獻： 錯誤！未定義書簽摘要水是人類生活、工農(nóng)業(yè)生產(chǎn)和社會經(jīng)濟發(fā)展的重要資源，科學用水和排水是人類社會發(fā)展史上最重要的社會活動和生產(chǎn)活動內容之一。特別是在近代歷史中，隨著人類居住和生產(chǎn)的程式化進程，給水排水工程已經(jīng)發(fā)展成為城市建設和工業(yè)生產(chǎn)的重要基礎設施，成為人類生命健康安全和工農(nóng)業(yè)科技與生產(chǎn)發(fā)展的基礎保障。給水排水系統(tǒng)是為人們的生活、生產(chǎn)、和消防提供用水和排除廢水的設施的總稱。它是人類文明進步和城市化聚集居住的產(chǎn)物，是現(xiàn)代化城市最重要的基礎設施之一，是城市社會文明、經(jīng)濟發(fā)展和現(xiàn)代化水平的重要標志。尤其是在面臨全球水資源極其缺乏的今天，給排水管網(wǎng)的作用顯得尤為重要。由于城市給排水系統(tǒng)在新的時期賦予了新的內涵，與人們的生產(chǎn)和生活息息相關?？此破椒驳囊?guī)劃設計卻有著不平凡的現(xiàn)實意義，在滿足規(guī)范和其它技術要求的條件下，根據(jù)城市的具體情況，科學規(guī)劃設計城市給排水管網(wǎng)系統(tǒng)是一個非常重要的課題。課程設計是學習計劃的一個重要的實踐性學習環(huán)節(jié)，是對前期所學基礎理論、基本技能及專業(yè)知識的綜合應用。通過課程設計調動了我們學習的積極性和主動性，培養(yǎng)我們分析和解決實際問題的能力，為我們走向實際工作崗位，走向社會打下良好的基礎。本設計為玉樹囊謙縣香達鎮(zhèn)給排水管道工程設計。整個設計包括三大部分:給水管網(wǎng)設計、排水管網(wǎng)設計。給水管網(wǎng)的設計主要包括管網(wǎng)的定線、流量的設計計算、清水池容積的確定、管網(wǎng)的水力計算、管網(wǎng)平差和消防校核。排水管網(wǎng)設計主要包括排水管網(wǎng)定線、設計流量計算和設計水力計關鍵字：給水排水管網(wǎng)系統(tǒng)工程設計第一章給水管網(wǎng)的設計說明1.1給水管網(wǎng)布置的影響因素城市給水管網(wǎng)的布置取決于城市的平面布置、水源、調節(jié)構筑物的位置、大用戶的分布?？紤]的要點有下：（1） 城市規(guī)劃的影響：給水系統(tǒng)的設置，應密切配合城市和工業(yè)區(qū)的建設規(guī)劃，做到統(tǒng)盤考慮分期建設，既能及時供應生產(chǎn)生活和消防用水，又能適應今后發(fā)展的需要（2） 水源的影響：本設計采用地表水并從河流上游取水。1.2管網(wǎng)系統(tǒng)布置原則給水管網(wǎng)包括輸水管渠和配水管網(wǎng)兩大部分。要求能夠供給用戶所需水量，保證不間斷供水，同時要保證配水管網(wǎng)足夠的水壓。（1） 按照城市總體規(guī)劃，確定給水系統(tǒng)服務范圍和建設規(guī)模，結合當?shù)貙嶋H情況布置給水管網(wǎng)，壓進行多方案技術經(jīng)濟比較。（2） 分清主次，先進行輸水管渠與主干管布置，然后布置一般管線與設施。（3） 盡量縮短管線長度，盡量減少拆遷，少占農(nóng)田，節(jié)約工程投資與運行管理費用。（4） 協(xié)調好與其它管道、電纜和道路等工程的關系。（5） 保證供水具有安全可靠性。（6） 管渠的施工、運行和維護方便。（7） 遠近期結合，留有發(fā)展余地，考慮分期實施的可能性。1.3配水管網(wǎng)布置給水管網(wǎng)遍布整個給水區(qū)，根據(jù)管道的功能，可劃分為干管、分配管、接戶管三類。干管的主要作用是輸水至城市各用水地區(qū)，同時也為沿線用戶配水，起管徑一般在200mm以上，分配管的主要作用是把干管輸送來的誰配給接戶管和消火栓，起管徑一般不予計算，均由消防流量來確定。干管和分配管的管徑并無明確的界限，應視規(guī)模確定。干管通常遵循下列原則進行布置：（1） 干管布置的主要方向應按供水主要流向眼神，而供水的流向則取決于最大用水戶或水塔等調節(jié)構筑物的位置。（2） 為了保證過供水可靠，通常按照主要流向布置幾條平行的干管，其間用連接管連接，這些管線在道路下以最短的距離到達用水量大的主要用戶。（3） 干管一般按規(guī)劃道路布置，盡量避免在高級路面或重要道路下敷設。管線在道路下的平面位置和高程應符合城市地下管線綜合設計的要求。（4） 干管的高處應布置排氣閥，低處應設泄水閥，干管上應為安裝消火栓預留直觀，消火栓的間距不應大于120m。（5） 干管的布置應考慮發(fā)展和分期建設的要求，并留有余地。配水管網(wǎng)的布置形式，根據(jù)城市規(guī)劃、用戶分布以及用戶對用水的安全可靠性的要求程度等，分成樹狀網(wǎng)和環(huán)狀網(wǎng)。在本設計中采用的是環(huán)狀網(wǎng)，當任意一段管線損壞時，閘閥可以將它與其余管線隔開進行檢修，不影響其余管線的供水，使供水的地區(qū)大為縮小，同時，環(huán)狀網(wǎng)還可以大大減輕因水錘現(xiàn)象所產(chǎn)生的危害。

1.4給水管網(wǎng)設計計算1.5設計用水量的組成（1） 綜合生活用水量，包括居民生活用水和公共建筑及設施用水;（2） 工業(yè)企業(yè)生產(chǎn)用水和工作人員生活用水量；（3） 消防用水量；（4） 市政用水量，主要指澆灑道路和綠地用水量；（5） 未預見用水量及給水管網(wǎng)漏失水量。1.6設計用水量的計算1.6.1城市最高日綜合生活用水式中q1iN1i式中q1iN1i10003(m/d)q1i—城市各用水分區(qū)的最高日生活用水量定額L/(d?cap)N 設計年限內城市各用水分區(qū)的計劃人口數(shù)（cap）則Q1二二qQ1二二q1iN“1000150*(950001250001000385^3385(01/d)1.6.2工業(yè)生產(chǎn)用水量Q2二為q2iB2i(1-fi)(m3/d)Q2=(3700+2800)*(1-0.85)=975m3/d1.6.3工業(yè)企業(yè)職工的生活用水和淋浴用水量工業(yè)企業(yè)職工的生活用水量q1(按總人數(shù)算)：(1350*0.4+1350*0.5)*35丄(1350*0.6+1350*0.5)*25 ”“c3q1 79.650m/d10001000（2） 工業(yè)企業(yè)職工的淋浴用水量q1（按總人數(shù)算）：甲廠：q2乙廠：q3’Oy^OPhO^ooo+^SaO.hM^oon^Oqm'/d）則： Q3=79.650+46.980+56.700=183.331/d1.6.4澆灑道路和綠地用水查《室外給水規(guī)范》 GB50014-2003中：澆灑道路用水量以每平方米2.0-3.0L/（m2?d）計算，澆灑綠地用水以1.0-3.0L/（m2?d）計算。則 ：(m3/d)q4af4q4bN4b(m3/d)Q4二1其中道路面積為2707145.65m2綠地面積為402289.83121.6.5未預見水量和管網(wǎng)漏失水量Q漏失=8%(Q1Q2Q3Q4)8%(33850975183.336017.7)=3282.08(m3/d)Q未預見=10%(QiQ2Q3Q)10%(33850975183.336017.73二4102.61(m3/d)貝U:Q5=3282.08+4102.6仁7384.69(m3/d)1.6.6消防水量查書后面的附表可知，人數(shù)w30萬人時，同一時間內的滅火次數(shù)為2次，一次滅火量為55(L/s)。Q6=q6*f6=55*2=110(L/s)1.6.7最高日設計用水量3Qd=Q1Q2Q3Q4Q5=33850975183.336017.737384.69二48227.42m/d則取Qd=48000(m3/d)1.7最咼日最咼時用水量根據(jù)《室外給水設計規(guī)范》GB50013-2006規(guī)定，最高日城市用水的時變化系數(shù)采用1.2?1.6，日變化系數(shù)采用1.1?1.5.1.7.1用水量變化曲線的繪制已知資料中給出該縣城居住區(qū)每小時綜合生活用水量變化如下表：時間0-11-22-33-44-55-66-77-88-99-1010-1111-12用水量(%)2.502.001.902.192.653.954.905.225.405.405.505.10時間12-1313-1414-1515-1616-1717-1818-919-020-121-2222-2323-24用水量(%)4.664.874.815.005.415.425.104.624.103.373.022.91繪制最高日用水量變化曲線見下表:最高日用水量變化曲線從附表中可以看出，10-11點為用水最高時，所以時變化系數(shù)為KQh 5.50 彳QOh二QT二^41^=1.32最高日用水量：Qd二KhQd=1.3248000=2640(m3/d)=733.33(L/s)

24 241.8泵站供水流量設計管網(wǎng)分兩級供水，第一級供水為：21:00?6:00，供水量為2.86%;第二級供水為：6:00?21:00,供水量為5.10%。管網(wǎng)設水塔或高位水箱的供水流量：Q=48000*5.10%*1000/3600=680(L/s)水塔或高位水箱的供水流量為：Q=48000*(5.50%-5.10%)*1000/3600=53.33(L/s)4)水塔或高位水箱的最大進水流量為 20:00?21:00,最高傳輸時的流量為Q=48000*(5.10%-1.90%)*1000/3600=426.67(L/s)1.9清水池和水塔有效容積的計算計算結果見附下表：清水池與水塔調節(jié)容積計算表給水處供水泵站供水量清水池調節(jié)容積計算(％)段(1)理供水量(％)(2)\/0丿設置水塔(3)不設水塔(4)設置水塔不設水塔水塔調節(jié)容積計算(％)(3)-(4)刀(2)-(3)刀(2)-(4)刀0?14.172.862.51.311.311.671.670.360.361?24.172.8621.312.622.173.840.861.222?34.162.861.91.33.922.266.10.962.183?44.172.862.191.315.231.988.080.672.854?54.172.862.651.316.541.529.60.213.065?64.162.863.951.37.840.219.81-1.091.976?74.175.14.9-0.936.91-0.739.080.22.177?84.175.15.22-0.935.98-1.058.03-0.122.058?94.165.15.4-0.945.04-1.246.79-0.31.759?104.175.15.4-0.934.11-1.235.56-0.31.4510?114.175.15.5-0.933.18-1.334.23-0.41.0511?124.165.15.1-0.942.24-0.943.2901.0512?134.175.14.66-0.931.31-0.492.80.441.4913?144.175.14.87-0.930.38-0.72.10.231.7214?154.165.14.81-0.94-0.56-0.651.450.292.0115?164.175.15-0.93-1.49-0.830.620.12.1116?174.175.15.41-0.93-2.42-1.24-0.62-0.311.817?184.165.15.42-0.94-3.36-1.26-1.88-0.321.4818?194.175.15.1-0.93-4.29-0.93-2.8101.4819?204.175.14.62-0.93-5.22-0.45-3.260.481.9620?214.162.864.11.3-3.920.06-3.2-1.240.7221?224.172.863.371.31-2.610.8-2.4-0.510.2122?234.172.863.021.31-1.31.15-1.25-0.160.0523?244.162.862.911.301.250-0.050.02累計100100100調節(jié)容積=13.06調節(jié)容積=13.07調節(jié)容積=3.011.9.1清水池設計有效容積為：W=W,W2W3W4式中：Wi——調節(jié)容積，m3W2 消防貯水量，m3，按2h火災延續(xù)時間計算，本設計采用2h一次用水量55L/SW3――水廠沖洗濾池和沉淀池排泥等生產(chǎn)用水， m3,等于最高日用水量的5%?10%W4——安全儲量，m3，為避免清水池抽空，清水池可保留一定水深(0.5m)作為安全儲量，可按(2%?10%)Qd來計算則：W=13.09%Qd=13.09%4800(6283m32W^-55223600/1000=792m3W3=5%Qd=5%4808(24W4=5.0%48000=2400m3W二WW2W3W4=6283.2792.024002400=11875.20m33則取W=12000(m)。1.9.2水塔有效容積W塔W塔=W1+W2其中：W1—調節(jié)容積，m3W1=3.01%X48000=1444.80m3W2—消防貯水量，m3，按10min室內消防用水量計算3W2=0.01X10X60=6m3W塔=1444.8+6=1450.8mi則取W=1500(m3)1.10管網(wǎng)水力計算1.10.1管線平面圖見附圖3。1.10.2比流量計算管道配水長度，兩側無用水的輸水管，配水長度為零，單側用水管段的配水長度取其實際長度的50%。

（2）各管段長度和配水長度見下表:管段或者節(jié)點編號1.002.003.004.005.006.007.008.009.00管段配水長度（m）745.55800.22462.38928.92569.6765.49580.12224.87744.82管段或者節(jié)點編號10.0011.0012.0013.0014.0015.0016.0017.0018.00管段配水長度（m）318.30573.69116.471068.81639.780.001109.60113.791090.64管段或者節(jié)點編號19.0020.0021.0022.0023.0024.0025.0026.00管段配水長度（m）639.78746.41820.67526.72456.93808.89888.37500.00（3）最高時集中用水流量見下表:節(jié)點2.003.005.006.008.009.0010.00集中流量（L/s））4.065.983.506.021.982.433.23節(jié)點11.0012.0014.0016.0017.001.0019.00集中流量（L/s）9.841.117.4211.456.34515.1540.40（4）比流量計算qs=qs=(Q^q)'I其中'q—大用戶集中用水量之和'1—配水干管總長度，不包括穿越廣場，公園等無建筑物地區(qū)的管線，對于單側供水，管道長度按1/2計算。qi二0.0343L/sQh-qniqi二0.0343L/sImi 14295.34泵站設計供水量：qi=555.55*5.10%/5.50%=515.15（L/s）水塔設計水量：q2=555.55-515.55=340.40（L/s）1.10.3沿線流量計算各管段沿線流量見下表:管段1.002.003.004.005.006.007.008.009.0010.00沿線流量（L/s）515.1527.5215.3620.3126.6822.8822.8623.9525.8039.51管段11.0012.0013.0014.0015.0016.0017.0018.0019.00沿線流量（L/s）39.8429.7937.9931.7344.7129.2230.8623.2040.40流量分配初擬管徑見下表:初次管徑設計計算管段或者流量經(jīng)濟流速計算管徑設計管徑流速節(jié)點編號(L/s)v(m/s)d(mm)d(mr)iv(m/s)1515.151809.887781.084

2242.231555.356000.857385.001328.983001.203459.061274.223000.836530.831198.132000.9816134.371413.624001.069724.911178.092000.793880.001319.153001.132924.911178.092000.79310140.001422.204001.11411161.341453.245000.82212144.601429.084001.1511350.931254.653000.7211413.881132.942000.4421572.471303.763001.0251650.931254.653000.72117161.211453.065000.8211890.001338.514000.7161959.101274.313000.8362050.001252.313000.7072171.111300.903001.0062288.311335.323001.2492325.561180.402000.8142420.551161.762000.6542520.101159.982000.6402640.401226.802590.7671.11管網(wǎng)平差計算1.11.1管網(wǎng)平差的步驟：選取海曾-威廉公式，阻力系數(shù)取110;節(jié)點數(shù)據(jù)輸入地面標高，已知水壓，已知流量；管段數(shù)據(jù)輸入管徑，起始終止節(jié)點，長度，阻力系數(shù);其后進行管網(wǎng)平差，使得數(shù)據(jù)處于經(jīng)濟流速范圍內。給水經(jīng)濟流速表：管徑(mm)D=100?400D>400平均經(jīng)濟流速(m/s)0.6?0.90.9?1.41.11.2管網(wǎng)平差結果見下表(|h|v0.5m)

最大用水時管網(wǎng)平差表（哈代---克羅斯法平差計算）環(huán)號管段編號she(m)流量初分配第一次平差第二次平差第三次平差q(L/S)h(m)0.852s|q|q(L/S)h(m)0.852s|q|q(L/S)h(m)0.852s|q|q(L/S)h(m)0.852s|q|13308.970.0085.003.2237.8334.310.6017.4655.161.4426.1743.340.9221.3144088.060.0059.0621.67366.998.370.5869.4629.225.89201.4817.402.25129.5552173.340.0030.833.46112.13-19.86-1.5377.090.990.015.97-10.83-0.5045.99-653.460.00-134.37-1.309.67-170.54-2.0211.85-172.58-2.0711.97-187.02-2.4012.8127.05526.62-2.37175.865.27245.590.28209.66-27.737.28-11.59-0.732214.490.00242.231.054.33227.710.944.11250.601.124.46253.221.144.50653.460.00134.371.309.67170.542.0211.85172.582.0711.97187.022.4012.81-72609.830.00-24.91-2.80112.29-33.33-4.80143.91-20.40-1.9394.72-27.63-3.39122.64-8203.700.00-80.00-1.8923.68-64.05-1.2519.59-81.57-1.9624.08-65.91-1.3220.08-2.34149.97-3.10179.46-0.71135.22-1.18160.038.449.322.853.973-1139.560.00-161.34-1.358.36-168.85-1.478.69-142.01-1.077.50-154.82-1.258.078203.700.0080.001.8923.6864.051.2519.5981.571.9624.0865.911.3220.0894850.240.0024.915.20208.680.530.007.9130.997.79251.348.110.6580.18-1083.050.00-140.00-2.1815.55-147.51-2.4016.26-120.67-1.6513.70-133.48-1.9914.933.57256.27-2.6152.457.03296.62-1.27123.27-7.5126.84-12.805.564-94850.240.00-24.91-5.20208.68-0.530.007.91-30.99-7.79251.34-8.11-0.6580.1872609.830.0024.912.80112.2933.334.80143.9120.401.9394.7227.633.39122.641781.390.00161.212.7717.19155.122.5816.63165.072.9017.54174.923.2218.43-164997.120.00-50.93-20.14395.42-14.58-1.99136.19-23.34-4.75203.39-9.47-0.8994.28-12143.830.00-144.60-4.0027.69-127.74-3.1824.91-131.35-3.3525.51-121.27-2.8923.84-23.77761.262.21329.55-11.06592.502.18339.3616.86-3.6110.08-3.47518142.290.0090.001.6518.2986.241.5217.6487.781.5717.9078.751.2916.3219523.290.0059.102.7847.0055.342.4644.4556.882.5945.5047.851.8839.26-204160.890.00-50.00-16.21324.127.740.5166.1213.001.34102.879.170.7076.38-15523.290.00-72.47-4.0555.92-33.78-0.9929.18-50.96-2.1141.43-55.97-2.5144.87-15.83445.343.51157.383.39207.701.35176.8319.20-12.03-8.80-4.136164997.120.0050.9320.14395.4214.581.99136.1923.344.75203.399.470.8994.2815523.290.0072.474.0555.9233.780.9929.1850.962.1141.4355.972.5144.87145091.850.0013.881.85133.10-9.29-0.8894.581.620.0321.311.590.0320.96

-13566.030.00-59.93-3.0851.45-79.42-5.1965.40-74.27-4.5961.77-78.07-5.0364.4522.96635.90-3.10325.362.30327.89-1.59224.57-19.495.15-3.793.837204160.890.0050.0016.21324.12-7.74-0.5166.12-13.00-1.34102.87-9.17-0.7076.38213130.930.0071.1123.41329.249.620.5859.865.890.2339.420.690.006.37225906.410.0088.3165.97747.0149.7722.81458.3032.4810.35318.5527.517.61276.55232797.490.0025.563.14123.03-16.66-1.4285.44-28.19-3.77133.75-29.40-4.07138.60108.73523.4021.45669.725.47594.612.84497.89-38.54-17.29-4.97-3.088-145091.850.00-13.88-1.85133.109.290.8894.58-1.62-0.0321.31-1.59-0.0320.96-232797.490.00-25.56-3.14123.0316.661.4285.4428.193.77133.7529.404.07138.60245194.630.0020.553.90189.7024.235.29218.3018.473.20173.2214.712.10142.65-254090.840.00-20.10-2.95146.60-16.42-2.03123.38-22.18-3.54159.43-25.94-4.73182.21-4.04592.445.57521.713.40487.701.41484.423.68-5.76-3.76-1.579-1279.39-70.47-；515.15-11.32158.77-492.19-4.70152.73-505.76-8.58156.31-505.53-8.52156.24-280.00-98.00-；515.1550.000.00-492.1950.000.00-505.7650.000.00-505.5350.000.00270.0028.0040.40-28.000.0063.36-28.000.0049.79-28.000.0050.02-28.000.0026539.870.0040.401.4235.0763.363.2651.4549.792.0941.9050.022.1042.07-213130.930.00-71.11-23.41329.24-9.62-0.5859.86-5.89-0.2339.42-0.690.006.37-19523.290.00-59.10-2.7847.00-55.34-2.4644.45-56.88-2.5945.50-47.85-1.8839.26-18142.290.00-90.00-1.6518.29-86.24-1.5217.64-87.78-1.5717.90-78.75-1.2916.32-1781.390.00-161.21-2.7717.19-155.12-2.5816.63-165.07-2.9017.54-174.92-3.2218.43-52173.340.00-30.83-3.46112.1319.861.5377.09-0.99-0.015.9710.830.5045.99-44088.060.00-59.06-21.67366.99-8.37-0.5869.46-29.22-5.89201.48-17.40-2.25129.55-3308.970.00-85.00-3.2237.83-34.31-0.6017.46-55.16-1.4426.17-43.34-0.9221.31-214.490.00-242.23-1.054.33-227.71-0.944.11-250.60-1.124.46-253.22-1.144.50-47.911126.8512.84510.88-0.24556.655.38480.0422.96-13.570.23-6.05第四次平差第五次平差第六次平差第七次平差第八次平差q(L/S)h(m).| 0.852s|q|q(L/S)h(m).| 0.852s|q|q(L/S)h(m).| 0.852s|q|q(L/S)h(m).| 0.852s|q|q(L/S)h(m).| 0.852s|q|48.661.1423.5244.140.9621.6445.551.0122.2344.070.9521.6144.30.9621.7122.723.69162.6218.22.45134.5919.612.81143.4318.132.43134.1818.362.49135.6-5.51-0.1425.86-10.03-0.4343.09-8.62-0.3337.87-10.1-0.4443.33-9.87-0.4242.5-191.72-2.5113.09-195.11-2.5913.28-197.88-2.6613.45-198.64-2.6813.49-200.01-2.7113.572.19225.080.38212.610.84216.980.27212.610.32213.38-5.25-0.96-2.08-0.68-0.8

263.241.224.65262.111.214.63266.291.254.69265.571.244.68267.161.264.71191.722.5113.09195.112.5913.28197.882.6613.45198.642.6813.49200.012.7113.57-20.19-1.993.89-25.72-2.97115.39-21.83-2.19100.33-24.63-2.74111.22-22.74-2.36103.88-67.5-1.3820.49-66.66-1.3520.27-67.36-1.3820.45-67.26-1.3720.43-67.48-1.3820.480.45132.11-0.51153.580.34138.92-0.19149.820.23142.64-1.851.81-1.330.69-0.86-149.26-1.177.82-151.96-1.217.94-149.45-1.177.83-150.89-1.197.9-149.98-1.187.8667.51.3820.4966.661.3520.2767.361.3820.4567.261.3720.4367.481.3820.4817.132.6151.710.761.1102.0415.352.12138.1812.441.44115.5114.561.92132.07-127.92-1.8414.4-130.62-1.9214.66-128.11-1.8514.42-129.55-1.8914.56-128.64-1.8614.470.97194.42-0.67144.920.48180.89-0.27158.390.27174.88-2.72.51-1.440.91-0.82-17.13-2.6151.7-10.76-1.1102.04-15.35-2.12138.18-12.44-1.44115.51-14.56-1.92132.0720.191.993.8925.722.97115.3921.832.19100.3324.632.74111.2222.742.36103.88177.53.3118.66181.93.4719.05182.193.4819.08184.273.5519.26183.973.5419.24-16.77-2.57153.44-10.35-1.05101.77-13.34-1.68126.28-10.63-1.11104.06-12.24-1.44117.34-124.74-3.0524.41-121.06-2.8823.8-123.15-2.9724.15-121.68-2.9123.9-122.89-2.9624.11-3.01442.11.4362.05-1.11408.020.84373.96-0.42396.633.68-2.091.48-1.210.5780.671.3416.6679.221.316.479.981.3216.5479.841.3216.5179.941.3216.5349.772.0240.648.321.9139.5949.081.9740.1248.941.9640.0249.041.9740.18.110.5668.837.240.4562.446.10.3354.015.920.3152.655.260.2547.59-63.93-3.2150.26-63.37-3.1649.88-65.88-3.451.56-65.39-3.3551.23-66.59-3.4752.040.71176.350.5168.320.22162.230.24160.420.07156.25-2.17-1.61-0.75-0.8-0.2516.772.57153.4410.351.05101.7713.341.68126.2810.631.11104.0612.241.44117.3463.933.2150.2663.373.1649.8865.883.451.5665.393.3551.2366.593.4752.046.990.5274.224.640.2452.296.240.4267.335.030.2856.025.730.3662.65-74.23-4.5861.74-76.97-4.963.68-76.07-4.863.05-77.31-4.9463.92-76.91-4.8963.641.72339.66-0.44267.620.71308.22-0.2275.230.37295.66-2.740.9-1.240.4-0.67-8.11-0.5668.83-7.24-0.4562.44-6.1-0.3354.01-5.92-0.3152.65-5.26-0.2547.593.660.126.313.090.0722.764.980.1734.25.030.1734.445.790.2338.8724.436.11249.9623.145.52238.6122.655.31234.3722.095.07229.3621.955.01228.12-30.9-4.47144.62-31.82-4.72148.27-31.6-4.66147.38-32.14-4.81149.54-31.97-4.76148.881.18489.720.42472.080.49469.960.12465.990.22463.45-1.3-0.48-0.57-0.14-0.26-6.99-0.5274.22-4.64-0.2452.29-6.24-0.4267.33-5.03-0.2856.02-5.73-0.3662.65

30.94.47144.6231.824.72148.2731.64.66147.3832.144.81149.5431.974.76148.8813.131.7129.5412.751.61126.3512.051.45120.3712.021.44120.1611.721.38117.55-27.52-5.27191.58-27.9-5.41193.83-28.6-5.66197.99-28.63-5.67198.14-28.93-5.78199.940.38539.960.68520.740.02533.080.3523.86-0.01529.02-0.38-0.7-0.02-0.310.01-511.58-10.28157.84-512.3-10.49158.03-514.68-11.18158.65-515.29-11.36158.81-516.2-11.63159.05-511.58500-512.3500-514.68500-515.29500-516.250043.97-28043.25-28040.87-28040.26-28039.35-28043.971.6637.6943.251.6137.1640.871.4535.4240.261.4134.9739.351.3534.29-3.66-0.126.31-3.09-0.0722.76-4.98-0.1734.2-5.03-0.1734.44-5.79-0.2338.87-49.77-2.0240.6-48.32-1.9139.59-49.08-1.9740.12-48.94-1.9640.02-49.04-1.9740.1-80.67-1.3416.66-79.22-1.316.4-79.98-1.3216.54-79.84-1.3216.51-79.94-1.3216.53-177.5-3.3118.66-181.9-3.4719.05-182.19-3.4819.08-184.27-3.5519.26-183.97-3.5419.245.510.1425.8610.030.4343.098.620.3337.8710.10.4443.339.870.4242.5-22.72-3.69162.62-18.2-2.45134.59-19.61-2.81143.43-18.13-2.43134.18-18.36-2.49135.6-48.66-1.1423.52-44.14-0.9621.64-45.55-1.0122.23-44.07-0.9521.61-44.3-0.9621.71-263.24-1.224.65-262.11-1.214.63-266.29-1.254.69-265.57-1.244.68-267.16-1.264.710.69514.42.19496.940.58512.230.85507.830.38512.6-0.72-2.38-0.61-0.91-0.41.11.3確定控制點在定線時假設了節(jié)點16為控制點，給點的地面標高為118.67m,需滿足的最小服務水頭為28m，然后進行水力計算，由平差算出來的各管段的水頭損失（推算出其他各個節(jié)點的水壓標高， 再算出每個節(jié)點的自由水頭，比較自由水頭與要求的最小服務水頭（不小于 28m）），比較自由水頭是否滿足最小服務水頭，推算出控制點為節(jié)點 16。計算表見下表:設計工況水力分析計算結構（假定節(jié)點 16為控制點，其服務水頭為28n）管段或節(jié)點編號2345678910111213管段壓降（m）1.260.962.490.422.712.361.381.921.861.182.964.89節(jié)點水頭（m）163.79162.61160.75162.67159.82162.53161.57159.08157.79156.35155.03153.06地面標高（m）116.74116.54116.82117.31117.52116.73117.01118.72116.61118.78119.76120.45自由水壓（m）47.0546.0743.9345.3642.3045.8044.5640.3641.1837.5735.2732.61管段或節(jié)點編號141516171819202122232425管段壓降（m）0.363.471.443.541.321.970.250.235.014.761.385.78節(jié)點水頭（m）152.81152.45146.67148.05153.05地面標高（m）119.46117.32118.67119.75120.81自由水壓（m）33.3535.1328.0028.3032.24控制點確定與節(jié)點水頭調整

節(jié)點18為該管網(wǎng)的控制點，最大差額為 Om管段或節(jié)點編號2345678910111213節(jié)點水頭（m）163.29162.11160.25162.17159.32162.03161.07158.58157.29155.85154.53152.56服務水頭（m）144.74144.54144.82145.31145.52144.73145.01146.72144.61146.78147.76148.45供壓差額（m）-18.55-17.57-15.43-16.86-13.80-17.30-16.06-11.86-12.68-9.07-6.77-4.11自由水壓（m）45.3944.2541.8343.3540.5844.0142.0739.3038.5835.7933.0629.34管段或節(jié)點編號141516171819202122232425節(jié)點水頭（m）152.81152.45146.67148.05153.05服務水頭（m）147.46145.32146.67147.75148.81供壓差額（m）-5.35-7.130.00-0.30-4.24自由水壓（m）30.3632.3828.0029.8928.841.11.4消防平差計算（1）消防平差表格計算消防平差表格見下表:消防平差表格環(huán)號管段編號she(m)流量初分配第一次平差第二次平差q(L/S)h(m)■ - 0.852s|q|q(L/S)h(m)■ - 0.852s|q|q(L/S)h(m)■ - 0.853s|q|13308.970.0044.300.9621.7133.230.5616.9943.290.9221.2944088.060.0018.362.49135.607.290.4561.7217.352.24129.26-52173.340.00-9.87-0.4242.50-20.94-1.6980.66-10.88-0.5046.16-617.700.00-255.01-1.415.52-271.39-1.585.82-264.49-1.515.701.62205.34-2.26165.191.16202.40-4.277.37-3.082214.490.00322.161.785.52327.481.835.60330.641.875.64617.700.00255.011.415.52271.391.585.82264.491.515.70-72609.830.00-22.74-2.36103.88-17.19-1.4181.85-15.06-1.1073.14-8203.700.00-122.48-4.1734.04-84.77-2.1124.88-87.49-2.2425.56-3.34148.97-0.10118.150.04110.0412.120.47-0.173-1139.560.00-149.98-1.187.86-175.56-1.588.98-172.37-1.528.858203.700.00122.484.1734.0484.772.1124.8887.492.2425.569673.280.0069.564.8369.4937.401.5340.9642.251.9245.44-1083.050.00-128.64-1.8614.47-154.22-2.6016.89-151.03-2.5116.595.96125.86-0.5491.710.1396.43-25.583.18-0.704-9673.280.00-69.56-4.8369.49-37.40-1.5340.96-42.25-1.9245.4472609.830.0022.742.36103.8817.191.4181.8515.061.1073.14

1781.390.00238.975.7424.04238.745.7324.02239.775.7824.11-16693.670.00-67.24-4.6869.55-53.84-3.1057.55-54.34-3.1558.00-1248.520.00-177.89-1.9811.14-171.31-1.8510.79-172.97-1.8810.88-3.39278.090.66215.17-0.07211.576.57-1.660.18518142.290.00134.943.4925.83113.482.5322.28110.262.4021.7419128.910.00104.041.9518.7582.581.2715.4079.361.1814.88204160.890.005.260.2547.592.570.0725.880.670.018.22-15128.910.00-121.59-2.6021.41-129.43-2.9222.58-134.18-3.1223.293.08113.570.9486.140.4668.14-14.66-5.92-3.64616693.670.0067.244.6869.5553.843.1057.5554.343.1558.0015128.910.00121.592.6021.41129.432.9222.58134.183.1223.29145091.850.005.730.3662.652.950.1035.574.270.2148.79-13566.030.00-76.91-4.8963.64-83.73-5.7368.41-84.90-5.8869.232.74217.250.40184.120.61199.30-6.82-1.17-1.657-204160.890.00-5.26-0.2547.59-2.57-0.0725.88-0.67-0.018.2221434.620.0060.792.4339.9942.021.2329.1940.701.1628.4122819.900.0076.957.1092.2164.985.1979.8460.964.6175.62-23388.330.00-86.97-4.2248.48-94.90-4.9652.22-96.43-5.1052.945.06228.271.39187.140.66165.18-11.97-4.02-2.148-145091.850.00-5.73-0.3662.65-2.95-0.1035.57-4.27-0.2148.7923388.330.0086.974.2248.4894.904.9652.2296.435.1052.9424721.090.0066.724.7971.8262.684.2768.1060.193.9665.79-254090.840.00-28.93-5.78199.94-32.97-7.37223.49-35.46-8.43237.802.86382.891.75379.380.42405.31-4.04-2.49-0.569-1279.39-70.47-516.20-11.32159.05-509.39-9.64157.26-512.09-10.42157.97-280.00-98.00-516.2050.000.00-509.3950.000.00-512.0951.000.00270.0028.0039.35-28.000.0046.16-28.000.0043.46-27.000.0026539.870.0039.351.3534.2946.161.8139.2843.461.6237.32-21434.620.00-60.79-2.4339.99-42.02-1.2329.19-40.70-1.1628.41-19128.910.00-104.04-1.9518.75-82.58-1.2715.40-79.36-1.1814.88-18142.290.00-134.94-3.4925.83-113.48-2.5322.28-110.26-2.4021.74-1781.390.00-238.97-5.7424.04-238.74-5.7324.02-239.77-5.7824.1152173.340.009.870.4242.5020.941.6980.6610.880.5046.16-44088.060.00-18.36-2.49135.60-7.29-0.4561.72-17.35-2.24129.26

-3308.970.00-44.30-0.9621.71-33.23-0.5616.99-43.29-0.9221.29-214.490.00-322.16-1.785.52-327.48-1.835.60-330.64-1.875.64-6.39507.282.26452.410.16486.786.80-2.69-0.17第三次平差第四次平差第五次平差第六次平差q(L/S)h(m)..0.853s|q|q(L/S)h(m)..0.853s|q|q(L/S)h(m)..0.853s|q|q(L/S)h(m)..0.853s|q|40.380.8120.0641.770.8620.6540.420.8120.0840.930.8320.2914.441.6110.5415.831.89119.5614.481.6110.7814.991.71114.07-13.79-0.7856.49-12.4-0.6451.59-13.75-0.7856.36-13.24-0.7254.59-267.4-1.545.75-267.44-1.545.75-268.48-1.555.77-268.28-1.555.770.09192.850.58197.550.09192.990.27194.72-0.25-1.58-0.25-0.75330.641.875.64332.081.885.66331.751.885.66332.071.885.66267.41.545.75267.441.545.75268.481.555.77268.281.555.77-15.42-1.1574.61-14.95-1.0972.66-15.08-1.173.22-15.12-1.1173.39-86.96-2.2125.43-87.21-2.2225.49-87.38-2.2325.53-87.5-2.2425.560.04111.430.11109.570.09110.190.08110.39-0.21-0.55-0.45-0.4-173.07-1.548.88-173.04-1.548.87-173.41-1.548.89-173.75-1.558.9186.962.2125.4387.212.2225.4987.382.2325.5387.52.2425.5641.371.8544.6342.081.9145.2842.121.9145.3242.191.9145.38-151.73-2.5316.66-151.7-2.5316.65-152.07-2.5416.69-152.41-2.5516.72-0.0195.590.0796.30.0696.430.0696.570.04-0.37-0.34-0.31-41.37-1.8544.63-42.08-1.9145.28-42.12-1.9145.32-42.19-1.9145.38

15.421.1574.6114.951.0972.6615.081.173.2215.121.1173.39240.135.824.14241.095.8424.22240.915.8324.2241.265.8524.24-52.51-2.9656.34-52.61-2.9756.43-52.6-2.9756.42-52.73-2.9856.54-172.79-1.8810.87-173.47-1.8910.91-173.88-1.910.93-174.29-1.9110.950.26210.580.16209.50.16210.090.15210.5-0.68-0.41-0.41-0.39106.792.2621.16107.432.2821.27106.672.2521.14107.122.2721.2175.891.0914.3376.531.114.4375.771.0814.3176.221.114.38-0.83-0.019.84-1.44-0.0215.82-1.94-0.0420.37-2.09-0.0521.66-136.18-3.2123.58-136.6-3.2323.64-137.16-3.2523.72-137.19-3.2623.730.1368.90.1475.170.0579.550.0780.99-1-0.98-0.31-0.4552.512.9656.3452.612.9756.4352.62.9756.4252.732.9856.54136.183.2123.58136.63.2323.64137.163.2523.72137.193.2623.733.190.1238.033.090.1136.982.770.0933.72.60.0831.92-86.54-6.0970.37-87.12-6.1770.76-87.54-6.2271.06-87.82-6.2671.250.2188.320.15187.820.09184.90.06183.44-0.58-0.42-0.27-0.190.830.019.841.440.0215.821.940.0420.372.090.0521.6638.721.0527.2339.991.1227.9939.731.1127.8340.321.1428.1958.824.3173.3558.434.2672.9457.954.272.4257.794.1872.25-98.01-5.2653.67-97.92-5.2553.63-98.3-5.2953.81-98.36-5.353.840.12164.090.15170.380.05174.440.06175.93-0.38-0.48-0.16-0.19

-3.19-0.1238.03-3.09-0.1136.98-2.77-0.0933.7-2.6-0.0831.9298.015.2653.6797.925.2553.6398.35.2953.8198.365.353.8459.623.8965.2659.153.8364.8259.053.8264.7258.943.8164.63-36.03-8.68241.01-36.5-8.89243.7-36.6-8.94244.3-36.71-8.99244.880.35397.980.08399.140.08396.530.03395.27-0.47-0.1-0.1-0.05-512.26-10.47158.01-513.9-10.96158.45-514.12-11.02158.5-514.89-11.24158.7-512.26510-513.9510-514.12510-514.8951043.29-27041.65-27041.43-27040.66-27043.291.6137.241.651.535.9941.431.4835.8340.661.4335.26-38.72-1.0527.23-39.99-1.1227.99-39.73-1.1127.83-40.32-1.1428.19-75.89-1.0914.33-76.53-1.114.43-75.77-1.0814.31-76.22-1.114.38-106.79-2.2621.16-107.43-2.2821.27-106.67-2.2521.14-107.12-2.2721.21-240.13-5.824.14-241.09-5.8424.22-240.91-5.8324.2-241.26-5.8524.2413.790.7856.4912.40.6451.5913.750.7856.3613.240.7254.59-14.44-1.6110.54-15.83-1.89119.56-14.48-1.6110.78-14.99-1.71114.07-40.38-0.8120.06-41.77-0.8620.65-40.42-0.8120.08-40.93-0.8320.29-330.64-1.875.64-332.08-1.885.66-331.75-1.885.66-332.07-1.885.661.45474.810.2479.810.67474.690.14476.61-1.64-0.22-0.76-0.16（2）消防校核消防校核表格計算見下表:設計工況水力分析計算結構（假定節(jié)點16為控制點，其服務水頭為28m）管段或節(jié)點編號2345678910111213管段壓降（m）1.880.831.710.721.551.112.241.912.551.551.916.26節(jié)點水頭（m）150.14148.59146.05147.96146.71148.26147.43145.72144.14141.16138.88137.79地面標高（m）116.74116.54116.82117.31117.52116.73117.01118.72116.61118.78119.76120.45自由水壓（m）33.4032.0529.2330.6529.1931.5330.4227.0027.5322.3819.1217.34管段或節(jié)點編號141516171819202122232425管段壓降（m）0.083.262.985.852.271.100.051.144.185.303.818.99節(jié)點水頭（m）137.74137.66128.67132.48136.65地面標高（m）119.46117.32118.67119.75120.81自由水壓（m）18.2820.3410.0012.7315.841.12水泵選擇選擇300S58型水泵（2用1備），水泵揚程為58m1.13等水壓線圖繪制等水壓線圖見圖3。1.14多定壓節(jié)點管網(wǎng)圖繪制多定壓節(jié)點管網(wǎng)圖見圖2。第二章 排水管網(wǎng)設計說明與計算2.1排水系統(tǒng)的布置形式城市、居住區(qū)或工業(yè)企業(yè)的排水系統(tǒng)在平面上的布置，隨著地形、豎向規(guī)劃、污水廠的位置、土壤條件、河流情況，以及污水的種類和污染程度等因素而定。（1） 正交式：地勢向水體適當傾斜的地區(qū)，各排水流域的干管可以最短距離沿與水體垂直相交的方向布置，即為正交布置，但對水體污染較大。（2） 截留式：在正交式的基礎上，沿河岸再敷設主干管，并將個干管的污水截留送至污水廠，即為截留式布置。這種布置對減輕水體污染，改善和保護環(huán)境有重大作用。此外，還有平行式、分區(qū)式、分散式、環(huán)繞式布置，在此就不介紹了，在本設計中所采用的是截留式布置。2.2污水管網(wǎng)的布置污水管道平面布置，一般按確定主干管、干管、支管的順序進行。在城市排水總體規(guī)劃中，只決定污水主干管、干管的走向與平面布置，在詳細規(guī)劃中，還要決定污水支管的走向及位置。2.3污水管道的定線應盡可能在管線較短，埋深較小的情況下，讓最大區(qū)域的污水能自流排出，管道布置盡量順直。定線時通?？紤]的因素有地形和豎向規(guī)劃、排水體制和其他管線的情況、污水廠和出水口的位置、水文地質條件、道路寬度、地下管線及構筑物的位置、工業(yè)企業(yè)和產(chǎn)生大量污水的建筑物的分布情況以及發(fā)展遠景和修建順序等。2.4控制點的確定在排水區(qū)域內，對管道系統(tǒng)的埋深起控制作用的地點稱為控制點。各條管道的起點一般是這條管道的控制點，這些控制點中離出水口最遠的一點,通常是整個系統(tǒng)的控制點。另外，具有相當深度的工廠污水排出口或默寫低洼地區(qū)的管道起點，也可能是整個管道系統(tǒng)的控制點，這些控制點的管道埋深，影響整個管道系統(tǒng)的埋深。2.5污水管道系統(tǒng)設計參數(shù)2.5.1設計充滿度污水管道應按照非滿流設計，其最大設計充滿度下表。最大設計充滿度表格:管徑D或渠道咼度H/mm最大設計充滿度管徑D或渠道咼度H/mm最大設計充滿度200?3000.55500?9000.70350?4000.65>10000.752.5.2設計流速污水的流速較小時，污水中所含雜質可能下沉，產(chǎn)生淤積；當污水中流速較大時，可能產(chǎn)生沖刷現(xiàn)象，甚至損壞管道，為了防止管道中產(chǎn)生淤積或沖刷，設計流速不宜過小或過大，應限制在最小和最大設計流速之間。根據(jù)規(guī)范，污水管道在設計充滿度下最小設計流速為 0.6m/s,金屬管道的最大設計流速為10m/s，非金屬管道的最大設計流速為5m/s。2.5.3最小管徑污水管道管徑過小，極易堵塞，造成養(yǎng)護費用增加，因此，長采用較大管徑，較小管道坡度，減小埋深。2.5.4最小設計坡度在污水管道設計時，管道敷設坡度與設計地區(qū)的地面坡度基本保持一致，管道坡度造成的流速應等于或大于最小設計流速，以防止管道內沉淀。規(guī)范規(guī)定管徑200mm的最小設計坡度為0.004；管徑300mm的最小設計坡度為0.003。2.5.5污水管道的埋設深度污水管道的埋設深度是指管道的內壁地距地面的垂直距離，為了保證污水管道不受外界壓力和冰凍的影響和破壞，管道的覆土厚度不應小于一定的最小限值，這一限值稱為最小覆土厚度，應滿足下述三個因素的要求：防止管道中的污水冰凍和因土壤冰凍膨脹而損壞管道；防止管道被車輛造成的動荷載壓壞；滿足支管在銜接上的要求。2.5.6污水管道的銜接管道銜接有管頂平接和水面平接兩種，水面平接主要用于地面比較平坦地區(qū)，在本設計中采用的是管頂平接。2.6污水管道系統(tǒng)水力計算2.6.1污水流量的計算已知設計城鎮(zhèn)一區(qū)總人口9.5萬，街區(qū)面積201.4ha人口密度為470人22

/hm;二區(qū)總人口12.5萬，街區(qū)面積為517.1ha,人口密度為240人/hm。(1)居民生活污水定按綜合生活用水定額的 80%?90%計算，即：則污水平均日流量：Qd1243600100*95000243600=109.95L/sQd2120*125000243600243600=173.61L/s查表可知，污水量總變化系數(shù)Kzi旦二Qd1243600100*95000243600=109.95L/sQd2120*125000243600243600=173.61L/s查表可知，污水量總變化系數(shù)Kzi旦二2?7/Q0.11 109.0951Kz12.7Q^2.7173.0^￥1.53則：Q仁Kz1*Qd1+Kz2*Qd2=1.61*109.95+1.53*173.61=442.64L/s(2)工共建筑污水設計流量Q4一2575080%Q4一2575080%3.0357502°%25 4°75°80%*65%6075020%*80%360083600.19(L/s)Q2=500*10000.8/(3600*24)=7.8n7(L/s)（3）工業(yè)廢水設計流量Q3二二k3iq3iN3i(1—Q3二二k3iq3iN3i(1—fi)3.6漢241.01850(1-0.85)1.31800(1-0.85)3600漢24=12.74(L/s)（4）工業(yè)企業(yè)生活污水量和淋浴污水設備流量（5）城市污水設計總流量8.22(L/s)小 25沃675乂60%疋3.0+35x675乂40%疋2.5丄40父675乂60%*75%+60沃675疋40%*8.22(L/s)Q4乙=3600漢8 3600Qh9Q2Q3Q4=486.82(L/s)比流量的計算qAQd=ZAi[(L/s)/hm2]則qA1=（109.95+173.61）/（201.4+517.1?=0.395{（L/s）/hm2}2.6.2集中流量計算工廠甲：16.83L/s、工廠乙：19.48L/s、火車站：7.87L/s。2.7污水干管設計流量計算根據(jù)設計管段的定義和劃分的方法，將各干管和主干管中有本段流量進入的點、集中流量及旁側支管進入的點，作為設計管段的起止點的檢查井并邊上號碼。污水管段設計流量計算表格如下：

污水管段設計流量計算管段編號居民生活污水日平均流量分配管段設計流量計算本段轉輸流量（L/S）合計流量（L/s）總變化系數(shù)沿線