農(nóng)村通自來(lái)水工程建設(shè)項(xiàng)目用水量計(jì)算表1653372735

1、萊蕪市農(nóng)村通自來(lái)水領(lǐng)導(dǎo)小組辦公室,引泉（壩）、高位水池自流輸水管路水力計(jì)算書(shū),一、基本情況：,區(qū),鎮(zhèn),村,210,戶，共,1000,人。,位于,鎮(zhèn)駐地西北4km處。,耕地面積,650,畝，村莊面積,南北長(zhǎng)約,700,米，東西寬約,800 ,米， 面積約,0.56,平方公里，該村以生姜、林果和少量糧食作物為主業(yè)，人均總收入,2600,元。其他畜禽數(shù)量如下：,畜禽統(tǒng)計(jì)數(shù)量,成牛,奶牛,母豬,育肥豬,羊,雞,鴨,鵝,兔,備注,頭,頭,頭,頭,只,只,只,只,只,0,0,20,150,1150,2600,1500,0,0,該村為飲水不安全村，水量少，不方便。擬利用村北山腳處的山泉引水入村，解決該村吃水

2、難的問(wèn)題。,山泉水質(zhì)良好，經(jīng)化驗(yàn)符合飲用水標(biāo)準(zhǔn)。 小時(shí)出水量,40,立方米左右。,在山泉附近擬建集水池兼作調(diào)節(jié)水池，池底高程,265,米，池底沉砂預(yù)留空間深,0.3,米。,該村最不利點(diǎn)高程：,347,米，最小服務(wù)水頭,3.5,米。村內(nèi)最低點(diǎn)高程,230.00 ,m,經(jīng)實(shí)地測(cè)量，山泉距村莊管線長(zhǎng)度為,1500,米。,管材使用PE管，擬定村外主管網(wǎng)直徑及山泉集水池的容積并擬定尺寸。,其他用水畜禽數(shù)量見(jiàn)下表：,二、計(jì)算用水量和調(diào)節(jié)水池容積：,1.用水量計(jì)算,通過(guò)“用水量計(jì)算表”自動(dòng)調(diào)用基本資料計(jì)算，得到以下計(jì)算結(jié)果：,用水量計(jì)算成果表,最高日用水量（m3/d）,173.37 ,配水設(shè)計(jì)流量(m3/h

3、),14.45 ,年供水量(萬(wàn)噸),4.22 ,*調(diào)節(jié)水池容積(m3),86.69 ,*高位水池容積(m3),60.68 ,*水塔容積(m3),17.34 ,人均用水指標(biāo)(m3/d.r),0.17 ,可以得出出：配水設(shè)計(jì)流量和調(diào)節(jié)水池容積。,2.調(diào)節(jié)水池?cái)M定,（1）按矩形水池：擬定水池深度，確定池長(zhǎng)和池寬。,水池容積：,86.7 ,立方米。,擬定凈水深:,3,米， 平面面積,28.9 ,平方米。,擬定凈池長(zhǎng):,5.4 ,米， 則計(jì)算池寬,5.4 ,米,選池凈寬為,5.4 ,米。,有效容積:,長(zhǎng)寬深,86.69 ,立方米。,最大池深：,擬定水深預(yù)留沉砂深安全超高0.2米,3.5,米。,總 容 積

4、：,長(zhǎng)寬深,101.1 ,立方米。,（2）按圓形水池，擬定水池深度，確定水池直徑。,水池容積：,86.69 ,立方米。,擬定凈水深:,3,米，平面水面面積：,28.9 ,平方米。,水池直徑為：,6.1 ,米。,有效容積：,D2H/4,86.69 ,（滿足要求）,最大池深：,擬定水深預(yù)留沉砂深安全超高0.2米,3.5,米。,總 容 積,D2H大/4,101.1 ,立方米。,（3）水池方案的比較,1.有效容積比較：, 從兩個(gè)方案看，在同樣水深的情況下，圓形比矩形水池更能符合設(shè)計(jì)水池容積。,2.總?cè)莘e比較：, 不難看出，同樣水深的水池，圓形水池略小于矩形水池，也就是說(shuō)無(wú)效容積小。,3.工程量比較：,

5、 按水池周長(zhǎng)比較，矩形水池周長(zhǎng)為:,21.50 ,米，,圓形周長(zhǎng)為:,19.06 ,米，,矩形比圓形少（,11%,。,結(jié)論：,通過(guò)分析認(rèn)為，選用圓形水池節(jié)約工程量,從而減少投資，宜選圓形水池。,三、村外主管道計(jì)算：, 村內(nèi)不利點(diǎn)最高水壓標(biāo)高：,H村不利點(diǎn)地面高程最小服務(wù)水頭,350.5,m, 調(diào)節(jié)水池最低供水位：,H池水池池底高程水池沉砂預(yù)留深,265.3,m, 不利點(diǎn)至調(diào)節(jié)水池的水位差：,Hz=H池H村,85.2,m, 管網(wǎng)最大壓力：水池最高水位村內(nèi)最低點(diǎn)高程,38.00 ,m，管材工作壓力選用：,0.6 Mpa, 按照管路損失和實(shí)地高差相抵的原則計(jì)算:,管路損失水池與不利點(diǎn)之間的水位差，H

6、fHz。, 根據(jù)舍維列夫公式：,已知：,設(shè)計(jì)流量 Q,14.4 ,m3/h =,0.004013229,m3/s,水面高差 Hf,85.2,m,輸水管長(zhǎng) l,1500,m,則：,計(jì)算直徑 D,0.054 ,m,相應(yīng)流速v,1.74 ,m/s,（超經(jīng)濟(jì)流速）,54 ,mm, 按照管道計(jì)算內(nèi)徑和管道承壓查PE管產(chǎn)品規(guī)格：,0,管道外徑,壓力,壁厚,內(nèi)徑,計(jì)算面積,流速系數(shù),mm,Mpa,mm,mm,m2,1/m2,50,0.4,2.9,44.2,0.00153 ,651.73 ,65,0.4,3.6,57.8,0.00262 ,381.11 ,75,0.4,4.3,66.4,0.00346 ,28

7、8.78 ,75,0.4,4.3,66.4,0.00346 ,288.78 ,校核：,管道外徑,校核流量,設(shè)計(jì)狀態(tài)流速,流量要求,流速要求,mm,m3/s,m3/h,m/s,50,0.0023 ,8.35 ,2.62 ,不滿足,不宜使用,65,0.0048 ,17.19 ,1.53 ,滿足,不宜使用,75,0.0069 ,24.96 ,1.16 ,滿足,推薦使用,75,0.0069 ,24.96 ,1.16 ,滿足,不宜使用,結(jié)論：,通過(guò)計(jì)算分析，選擇在經(jīng)濟(jì)流速范圍內(nèi)，在一定高差下能夠滿足流量要求的管徑管材。,四、設(shè)計(jì)計(jì)算成果：,設(shè)計(jì)計(jì)算成果表,設(shè)計(jì)用水量,管線供水能力,主管直徑,流速,工作壓

8、力,14.4 ,17.19 ,75,1.16 ,0.38,設(shè)計(jì)水池容積,有效容積,最大容積,池深,最大池深,直徑,底高程,86.7 ,86.7 ,101.1 ,3,3.5,6.1 ,265,五、工程量計(jì)算：,2009/10/28,工程量合計(jì),圓形水池工程量計(jì)算,矩形水池工程量計(jì)算,水池直徑,6.1 ,池深,3,池長(zhǎng),0,池寬,10,池深,30.012 ,開(kāi)挖土方,10m3,0.012 ,開(kāi)挖土方,10m3,0.00,0.012 ,開(kāi)挖石方,10m3,0.012 ,開(kāi)挖石方,10m3,0.00,2.783 ,M7.5塊石池墻,10m3,2.783 ,M7.5塊石池墻,10m3,0.00,0.23

9、5 ,M7.5塊石基礎(chǔ),10m3,0.235 ,M7.5塊石基礎(chǔ),10m3,0.00,0.433 ,混凝土池底,10m3,0.433 ,混凝土池底,10m3,0.00,1.238 ,混凝土防滲墻,10m3,1.238 ,混凝土防滲墻,10m3,0.00,0.146 ,池頂鋼筋混凝土,10m3,0.146 ,池頂鋼筋混凝土,10m3,0.00,0.667 ,池內(nèi)抹面,100m2,0.667 ,池內(nèi)抹面,100m2,0.00,0.518 ,M7.5砌磚,10m3,0.5184,M7.5砌磚,10m3,0.00,五、工程預(yù)算：,工程總投資,53658.06 ,一,調(diào)節(jié)水池(清水池),54.71 ,1

10、0816.38 ,1,人工開(kāi)挖土方,100m3,0.01 ,1146.64,13.46 ,2,機(jī)械開(kāi)挖土方,100m3,0.00 ,244.41,0.00 ,3,人工開(kāi)挖石方,100m3,0.01 ,1866.7,21.92 ,4,機(jī)械開(kāi)挖石方,100m3,0.00 ,612.31,0.00 ,5,M7.5砌石基礎(chǔ),10m3,0.23 ,1259.77,295.80 ,6,C20素混凝土池底,10m3,0.43 ,1956.23,847.89 ,7,M7.5砌石墻（壁）,10m3,2.78 ,1961.14,5458.64 ,8,M7.5砌磚,10m3,0.52 ,1610.11,834.68

11、 ,9,C20混凝土防滲墻,10m3,1.24 ,1832.15,2267.42 ,10,C20池頂鋼筋混凝土,10m3,0.15 ,2463.5,360.34 ,11,1:2.5水泥砂漿抹面,100m2,0.52 ,1381.63,716.24 ,12,管理房,m2,0.00 ,500,0.00 ,二,塑料管安裝,150,38251.50 ,1,200,10m,0,146.35,854,0.00 ,2,180,10m,0,146.35,680,0.00 ,3,160,10m,0,84.15,560,0.00 ,4,140,10m,0,84.15,350,0.00 ,5,110,10m,0,42.83,320,0.00 ,6,90,10m,150,27.01,228,38251.50 ,7,75,10m,0,23.62,173.8,0.00 ,8,63,10m,0,20.81,128.7,0.00 ,9,50,10m,0,