CJT3008.1-1993城市排水流量堰槽测量标准三角形薄壁堰.pdf 22页

'中华人民共和国城镇建设行业标准城市排水流f堰槽测f标准CJ/T3008.1-1993三角形薄壁堰Standardsformunicipalwastewaterdischargemeasurement-Triangularnotch(Vnotch)thin-plateweir本标准制订参照了国际标准(ISO)1438/1:1980《应用薄壁堰和文杜里水槽在明渠中测流A,(ISO)4373:1979《明渠水流测量—水位测量设备》和(ISO)772:1988《明渠水流测A—词汇和符号》。1主厄内容与适用范口本标准规定了三角形薄壁堰的术语、结构、流盘公式、制作、安装、水头侧t,综合误差分析及维护等。本标准适用于水温为5-300C、流量为0.3^100L/s的城市生活污水、工业废水和雨水的明渠排水流it侧It.本标准的MA精度为1%^-2%.供水明渠的流ANA可参照使用。本标准不适用于含有大A漂浮物质和易淤积物质的排水流AIRY,2引用标准GBJ95水文测验术语和符号标准3术语3.1导流板baffle为改善水流条件，在行近渠道中设I的档板。3.2钩形测针hookgauge(gage)主要测f部件为一针形细钩。侧针上端的刻度为零，自上向下刻度读数逐渐增加，见图1和图3,3.3针形测针pointgauge(gage)主要部件是一根针形测杆。侧针上端刻度为零，自上向下刻度读数逐渐增加，见图2和图3e图1钩形测针图2针形侧针中华人民共和国建设部1993-05-03批准1993一10一01实施 CJ/T3008.1-1993针尖的半径0.25mm3.4基准板datumplate具有精确基面的固定金属板，用以测量水位。3.5亚临界流sub-criticalflow弗汝德数小于1的水流。在这种水流中，水面的扰动会影响上游流态。3.6堰顶crest测流堰顶部的线或面。3.7完全通气水舌fullyventilatednappe(fullyaeratednappe)跳离测流堰下游表面的水舌，水舌下面形成一个与大气连通的气穴。3.8本标准采用的其他术语和符号应符合GBJ95的有关规定。4三角形薄盛1的形状尺寸4.1三角形薄壁堰的形状尺寸，见图4,。一堰口角，度协一堰顶水头，mip-堰高,mob,-堰口上部宽度,m旧一行近集道宽度。m图4三角形薄壁堰4.2堰口角4.2.1堰口角的使用范围是a=200-v1000,常用堰口角a=900e4.2.2另有三种特殊堰口角的三角形薄壁堰，堰口角tg普-0.5,tg号=0.25，详见附录C4.3堰口形状 C.J/T3008.1-1993垂直于三角形薄壁堰锐缘的堰口剖面，见图50)45图5堰口剖面5流t计算5.1流量计算公式Q=。是tg普(2g)"A.....⋯⋯”.·....···⋯⋯(1)式中:Q—流量,m"/s;C,-流量系数;B—重力加速度，m/s"h,—有效水头，m。5.1.1确定C,值a=90“的二值由图6查得。!1}!}一l{l一}I一}}1}0"50}4}。r7月/}卯之9i{P{川l}{‘〕万/夕厂}/一}才}a昨//{/}川/P}才1淞洲"月川X}a/一}}一隧务二冈曰月【}a卜刁/汤尸卜书十件二二扛匕卜FI}}I一茸-I}一h/P图6流量系数C.(a=900)a=200--1000(不包括900)的C。值由图7查得。0.61口门口门门门曰门门曰门曰0.60口门口日口曰口口0.56口口口园口「ll二r二二二]口0.57口口口口巨巨口口厂}门]口口口口口口口口巨口口口口0.56图7流量系数C.(a=200^1000，不包括900)人。值按公式(t2)计算h.=h+气.，...........·.“..⋯“⋯.⋯”(2)式中:h堰顶水头，m;kn粘滞力和表面张力综合影响的校正值，m, CJ/T3008.1-19935.1.2.1确定k、值a当a=900时，kk=0.00085m0b.当a=200--1000(不包括900)时，k、查图8求得。l月l..二(日琶︶塑途、、灿‘卜一..助钧一I.I1替32rz(200)(1000)图8水头校正值kn(a=200^-1000不包括900(1200)5.2应用限制条件a当a=900时，h/p=0.2-2.0;当a=20"-100"(不包括900)时，h/p2mm,则堰板下游边缘做成斜面.斜面与顶面的夹角R不小于450,6.2.3表面粗糙度堰板上游侧面的表面粗糙度为黔堰口及距堰口100mm内堰板两侧的表面粗糙度为抓6.2.4尺寸精度a.a士5分;b.b士0.001bmm;c.尸士2mm;d.B士5mm.6.3行近渠道6.3.1长度行近渠道的长度不小于最大水头时水舌宽度的10倍。384 cd/T3008.1-19936.3.2流态行近渠道中水流的流态应符合附录A的规定。若流态不能满足此规定时，可采用导流板整流。6.4下游渠道6.4.1下游渠道内无杂物，水流排泄应通畅。6.4.2堰口与下游水面应有足够的垂直距离，保证形成完全通气水舌。6.5静水井6.5.1位f静水井设在行近渠道的一侧，距堰板上游面4--5h二处.h，为堰上最大水头。6.5.2连通管6.5.2.1渠道和静水并之间用连通管相连，管长尽I缩短，管子坡向渠道。6.5.2.2连通管直径不小于50mm。管底距渠底50mm,6.5.3井筒6.5.3.1静水井可为圆形或方形，竖直设里，高度应不低于梁顶。6.5-3.2井筒内壁与水位计浮子的间隙不小于75mm。井底位于连通管进口管底300mm,6.5.3.3在井简的顶面上设一金属基准板，其一边应与井简内壁齐平。6.6安装6.6.1堰板I于行近渠道末端，垂直安装。6.6.2堰口的垂直平分线与渠道两侧壁距离相等。6.6.3行近渠道、静水井和堰板等均不得漏水。664下游集道紧接堰板处，应作加固处理。6.6.5在最大流it通过时，堰板不变形，渠道不损坏。7水头测.7.1测量仪器7.1.1测t瞬时的堰顶水头，使用针形测针、钩形侧针或其他有同等精度的仪器，刻度划分至毫米，游标尺读数至0.1mm,7.1.2连续测A堰顶水头的变化过程时，使用浮子式水位计、超声波液位计或其他有同等精度的水位计测te7.1.2.1水位精度水位计的水位刻度划分至毫米.水位计的滞后行程不大于3mm,7.1.2.2记时精度记时装I连续工作30d以上，计时莱积平均误差不大于士30s/d,连续工作24h的记时钟，误差不大于士30s/d,7.1.2.3电子记录仪精度电子记录仪的误差不大于满f程读数的0.5%,71.3直接与污水接触的测针和浮子等用耐腐蚀的材料制成。7.1.4安装在现场的仪器，应有防潮、防腐和防冻等措施。7.2测量位里在行近渠道上.距堰板4-5h~处测t堰顶水头。若渠道中的水面波动不大，测f仪器不影响水流，可在渠道上直接测t;否则应在静水井中测$a7.3确定水头零点7.3.1测流前应确定水头零点。水头零点，即堰顶水头为零时水头测t位1E处测针的读数，或静水井基 CJ/T3008.1-1993准板与堰口最低点的垂直距离。7.3.2不能用下降或上升堰前水面至堰口处的读数，当作水头零点。7.3.3确定水头零点的方法a.将行近渠道中的静水位下降至三角堰口以下。b.在堰板上游的行近渠道上，安装一临时的钩形测针，在测定堰顶水头的位置处安装针形测针。c把一个用千分卡尺测量过的圆简的一端放在堰口上，另一端架在钩形测针的针尖上。在圆筒上放一个机工水平尺，调整钩形测针，使圆筒呈水平位置，然后记录钩形测针的读数A，见图9。叶钩形侧针针形侧针AIfC剖面图斗图6三角形薄壁堰水头零点的确定d.将钩形测针下降到行近渠道的水面，并记录其读数B,调整针形测针至水面，记录读数C.e.针形测针图筒底的读数由下式求得:D=(A一B)+C·”.······.·.，.··⋯⋯。“。⋯⋯(3)f.圆筒底到三角形堰口顶点的距离由下式求得:Y一书音一二···，··“···”········，’，，’·(4)sin万式中:r—圆筒半径，mm,9.针形测针在三角形堰口顶点的读数。即水头零点的读数，由下式求得:E二(A一B)十C一Y··········一·····一··⋯⋯(5)了4水头测量精度水头测量的误差为水头变幅的1%，但不得大于士3mm,8流，测f的综合误理分析8.1误差计算公式Xp=士〔z,"e+Xz}2+(2.5X,=)zws··················，，·⋯(6)式中:Xa—流量计算值的误差，%;X+-流量系数的误差.%;X,gz—三角堰堰口角度的误差，%;Xh,—有效水头的误差，%。8.1.1Xc。值可取为I%.8.1.2x,,值按公式(7)计算:X,g、一士coo〔{h,)+(6b,,)"]V,”·“·····，··，”:(7)式中:Eh,-堰口高度的误差，mmch,-堰口宽度的误差，mm CJ/T3008.1-1993—堰口垂直高度,MM;—堰口上部宽度，mm.8.1.3xhe值按公式(8)计算:loot嵘+嵘。+:;、+c2Sh)_)"xh.二士..............................(8)式中:Eh-测盘水头的误差，mm{Eh—水头零点的误差，MM;Ekh—水头改正系数的误差，取。3MM;2Sh—n次水头测量值平均值的误差，mm;n—水头测f的次数。8.1.3.1Sh值按公式(9)计算:。_Sh一。。·.⋯⋯“····.......⋯⋯(9)o,,=ni/z式中:S,-。次水头测I值的标准差。S,,=r-In(h-,-1h)"}1/2“.。.。。.。。。。‘。.。。⋯。.”(10)式中:h;—各次水头测量值，mm;h-n次水头MR值的平均值，mm,9维护O月.J..行近渠道、连通管和静水井应保持清洁，底部无障碍物。Cn廿产…﹄下游渠道应无阻塞，保持水舌下空气自由流通。0月J︸堰板应保持清洁和牢固可靠，清洗时不得损伤堰口，特别是堰口上游的边缘和表面。八5月叼凡有漏水部位，应及时修补。八只忿J…在渠道或堰板维修前后，要核查各部位的尺寸，是否与原尺寸相符。八﹃，b每年应检查一次测针和水位计等测量仪器的精度。O，Jt每年对水头零点校测一次。 cJ/T3008.1-1993附最A行近梁道的流态(补充件)A1行近渠道的水流应为均匀稳定的亚临界流，其流速分布应接近于图Al,图Al行近渠道中的正常流速分布A2保持亚临界流的条件刹式中:v—行近渠道中的平均流速，m/s;A—行近渠道中的水流断面，M2.附最B流，侧.的误整分析举例(参考件)B1三角形薄盛堪的苍本尺寸a=900p=0.30mh=0.121mb,=0.440mh,=0.220mB2误整分析B2.1本例给定的误差本标准规定取Xn=士1.。%本标准规定取Ekh=士0.30mm连续15次水头读数的标准差Sh=0.03mm,B2.2使用者估算的测量误差测量水头误差Eh“士0.10mm CJ/T3008.1-1993水头零点误差Cho=士0.10mm水头标准差S奋=0.03mm堰口宽度误差Eh=士0.50mm堰口高度误差Eh=士1.00mmB2.3计算x=z根据公式(5),X=z为:二:。;一土100["ho"z+(}}z,2/2一士1l。o。o「k(揣_122.00))“}++((瓮_04.4500)"}1J"=士0.47%B2.4计算Xh.根据公式(6),Xh。为100CEF+。乏。+:氛+(2Sh)2l1/2xh<=士hCO.102+0.102+0.302+(2X0.03)2w2=士100121=士0.28%B2.5计算xo根据公式(4)X。为:X。一士〔Xn+X"z+(2.5Xh)ews=士〔1.01+0.472+6.25X0.282)"/"=士1.31%附录C三种特殊堰口角的三角形薄盆堰的流.公式(参考件)C，三角形旅盛坦的堪口角1(a=n/2rad或90*);1/21(a=0.9273rad或5308")，1/41(a=0.4899rad或2804"),tg万=C2流.公式ce3Q=(2g)v"·hsiz(Cl)’tg万’C2.1当tg号-1时，流t公式转化为Q=2.3625C·hsiz(C2)流量计算查表Cl,389 cJ/T3008.1-1993表cleOCc.m"/sX10m"/sX100.0600.60320.012570.1020.59120.046410.0610.60280.013090.1030.59100.047540.0620.60230.013620.1040.59080.048690.0630.60190.014170.1050.59060.049850.0640.60150.014730.1060.59040.051030.0650.60120.015300.1070.59020.052220.0660.60080.015880.1080.59010.053440.0670.60050.016480.1090.58990.054670.0680.60010.017100.0690.59980.017720.1100.58980.055920.1110.58970.057190.0700.59940.018360.1120.58960.058470.0710.59900.019010.1130.58940.059770.0720.59870.019670.1140.58920.061080.0730.59830.020350.1150.58910.062420.0740.59800.021050.1160.58900.063770.0750.59780.021760.1170.58890.065140.0760.59750.022480.1180.58880.066530.0770.59730.023220.1190.58860.067930.0780.59700.023970.0790.59670.024730.1200.58850.069350.1210.58830.070790.0800.59640.025510.1220.58820.072240.0810.59610.026300.1230.58810.073720.0820.59580.027100.1240.58800.075220.0830.59550.027920.1250.58800.076730.0840.59530.028760.1260.58790.078270.0850.59500.029610.1270.58780.079820.0860.59480.030480.1280.58770.081390.0870.59450.031360.1290.58760.082980.0880.59420.032250.0R90.59400.033160.1300.58760.084580.1310.58750.086210.0900.59370.034090.1320.58740.087850.0910.59350.035030.1330.58730.089510.0920.59330.035980.1340.58720.091190.0930.59310.036950.1350.58720.092890.0940.59290.037950.1360.58710.094610.0950.59270.038950.1370.58700.096340.0960.59250.039970.1380.58690.098100.0970.59230.041010.1390.58690.099870.0980.59210.042060.0990.59190.043120.1400.58680.101670.1410.58670.10348:::::::0.044200.1420.58670.105320.045300.1430.58660.10717390 CJ/T3008.1-1993续表clQQcce阴m"/sX10爪.l/.xlo0.1440.58660.109040.1860.206210.1450.58650.110930.187:::0.208990.1460.58640.112840.1880.58500.211800.1470.58630.114760.1890.58500.214630.1480.58620.116710.1490.R5620.118670.1900.58500.217480.1910.58500.220340.1500.58610.120660.1920.58490.223220.1510.58610.122670.1930.58490.226120.1520.58600.124710.1940.58490.229060.1530.58600.126760.1950.58490.232030.1540.58590.128830.1960.58490.235010.1550.58590.130930.1970.58490.238020.1560.58590.133040.1980.58490.241060.1570.58580.135170.1990.58490.244110.1580.58580.137320.1590.58570.139500.2000.58490.247190.2010.58490.250280.1600.58570.141690.2020.58480.253390.1610.58570.143910.2030.58480.256520.1620.58560.146140.2040.58480.259690.1630.58560.148400.2050.58480.262880.1640.58550.150670.2060.58480.266100.1650.58550.152970.2070.58480.269340.1660.58550.155290.2080.58480.272610.1670.58540.157630.2090.58480.275900.1680.58540.159990.1690.58530.162370.2100.58480.279210.2110.58480.282540.1700.58530.164770.2120.58480.285880.1710.58530.167190.2130.58470.289240.1720.58520.169640.2140.58470.292640.1730.58520.172100.2150.58470.296070.1740.58510.174590.2160.58470.299530.1750.58510.177090.2170.58470.303010.1760.58510.179630.2180.58470.306510.1770.58510.182190.2190.58470.310040.1780.58510.184780.1790.58510.187390.2200.58470.313590.2210.58470.317170.1800.58510.190010.2220.58470.320770.1810.58510.192650.2230.58470.324390.1820.58500.195310.2240.58470.328030.1830.58500.198000.2250.58460.331680.1840.58500.200710.2260.58460.335350.1850.58500.203450.2270.58460.33907391 CJ/T3008.1-1993续表C1QQCC.刀了m"/.X10.l/.xlo0.2280.58460.342820.2700.58460.523170.2290.58460.346590.2710.58460.528020.2720.58460.532910.2300.58460.350390.2730.58460.537820.2310.58460.354210.2740.58460.542760.2320.58460.358060.2750.58460.547720.2330.58460.361930.2760.58460.552720.2340.58460.365820.2770.58460.557740.2350.58460.369740.2780.58460.562820.2360.58460.373690.2790.58470.567940.2370.58460.377660.2380.58460.381660.280O.S8470.573060.2390.58460.385680.2810.58470.578190.2820.58470.583350.2400.58460.389730.2830.58470.588S30.2410.58460.393800.2840.58470.593750.2420.58460.397900.2850.58470.598990.2430.58460.402020.2860.58470.604250.2440.58460.406170.2870.58470.609550.2450.58460.410340.2880.58470.614870.2460.58460.414540.2890.58470.620230.2470.58460.418770.2480.58460.423020.2900.58470.625600.2490.58460.427300.2910.58470.631010.2920.58470.636450.2500.58460.431600.2930.58470.641950.2510.58460.435930.2940.58480.647480.2520.58460.440280.2950.58480.653030.2530.58460.444660.2960.58480.658580.2540.58460.449070.2970.58480.664160.2550.58460.453500.2980.58480.669760.2560.58460.457960.2990.58480.675390.2570.58460.462450.2580.58460.466960.3000.58480.681060.2590.58460.471500.3010.58480.686750.3020.58480.692460.2600.58460.476060.3030.58480.698210.2610.58460.480650.3040.58480.703980.2620.58460.485270.3050.584-80.709800.2630.58460.489910.3060.58480.715680.2640.58460.494580.3070.58490.721590.2650.58460.499280.3080.58490.727500.2660.58460.504000.3090.58490.733410.2670.58460.50876氏0.2680.58460.513530.73936仓0.2690.58460.51R34:.:::0.74534392 CJ/T3008.1-1993续表C1OOC.C.m"/sx10m"/.X100.3120.58490.751350.3470.58510.980450.3130.58490.757380.3480.58510.987530.3140.58490.763440.3490.58510.994710.3150.58490.769540.3500.58521.001920.3160.58490.775660.3170.58490.781810.3510.58521.009120.3180.58490.788020.3520.58521.016330.3190.58500.794280.3530.58521.023560.3540.58521.030820.3200.58500.800570.3550.58521.038120.3210.58500.806850.3560.58521.045450.3220.58500.813140.3570.58521.052800.3230.58500.819470.3580.58521.060190.3240.58500.825830.3590.58521.067670.3250.58500.832220.3600.58531.075190.3260.58500.838630.3270.58500.845080.3610.58531.082730.3280.58500.851550.3620.58531.090240.3290.58500.858060.3630.58531.097780.3640.58531.105360.3300.58500.864590.3650.58531.112970.3310.58500.871160.3660.58531.120630.3320.58500.877750.3670.58531.128370.3330.58500.884380.3680.58541.136150.3340.58500.891030.3690.58541.143910.3350.58500.897720.3700.58541.151670.3360.58500.904480.3370.58510.911280.3710.58541.159470.3380.58510.918110.3720.58541.1673C0.3390.58510.924910.3730.58541.175160.3400:58510.931750.3740.58541.1831C0.3750.58551.191110.3410.58510.938620.3760.58551.199140.3420.58510.945510.3770.58551.207120.3430.58510.952440.3780.58551.215150.3440.58510.959400.3790.58551.223200.3450.58510.966380.3800.58551.231280.3460.58510.973400.3810.58551.23940393 CJ/T3008.1-1993表C2QOCC”忿m"/sX10m"/.x100.0600.61140.006370.1020.60170.023620.0610.61110.006630.1030.60160.024200.0620.61080.006910.1040.60140.024780.0630.61050.007180.1050.60130.025370.0640.61010.007470.1060.60110.025980.0650.60980.007760.1070.60090.026590.0660.60950.008060.1080.60080.027200.0670.60920.008360.1090.60060.027830.0680.60900.008670.0690.60870.008990.1100.60050.028470.1110.60030.029110.0700.60840.009320.1120.60020.029760.0710.60810.009650.1130.60000.030420.0720.60790.009990.1140.59980.031090.0730.60760.010330.1150.59970.031770.0740.60730.010690.1160.59950.032460.0750.60710.011050.1170.59940.033150.0760.60680.011410.1180.59920.033860.0770.60660.011790.1190.59910.034570.0780.60640.012170.0790.60610.012560.1200.59890.035290.1210.59880.036020.0800.60600.012960.1220.59870.036770.0810.60580.013360.1230.59850.037510.0820.60560.013770.1240.59840.038270.0830.60540.014190.1250.59820.039040.0840.60520,014620.1260.59810.039820.0850.60500.015050.1270.59800.040600.0860.60480.015490.1280.59790.041400.0870.60460.015940.1290.59780.042200.0880.60440.0164000890.60420.01686x.1300.59760.043020.1310.59750.043840.0900.60400.017340.1320.59730.044670.0910.60380.017820.1330.59720.045510.0920.60360.018300.1340.59710.046360.0930.60340.018800.1350.59700.047220.0940.60320.019300.1360.59680.048090.0950.60300.019810.1370.59670.048970.0960.60280.020330.1380.59660.049860.0970.60260.020860.1390.59650.050750.0980.60240.021390.0990.60220.021940.1400.59640.051660.1410.59620.05258仓0.022490.1420.59610.05351:.:::0.0.023050.1430.59600.05444394 CJ/T3008.1-1993续表C2QOC.C.m"/sX10刀盆m"/.X100.1440.59600.055390.1860.59260.104440.1450.59590.056350.1870.59250.105840.1460.59580.057320.1880.59250.107260.1470.59570.058300.1890.59240.108670.1480.59560.059290.1490.59560.060290.1900.59230.110100.1910.59230.111550.1500.59550.061300.1920.59220.113000.1510.59540.062310.1930.59220.114470.1520.59520.063340.1940.59210.115950.1530.59520.064370.1950.59200.117430.1540.59510.065420.1960.59200.118930.1550.59500.066480.1970.59190.120440.1560.59490.067550.1980.59190.121970.1570.59480.068630.1990.59190.123510.1580.59480.069710.1590.59470.070810.2000.59180.125060.2010.59180.126620.1600.59460.071920.2020.59170.128190.1610.59450.073040.2030.59170.129770.1620.59440.074170.2040.59160.131360.1630.59440.075310.2050.59160.132960.1640.59430.076460.2060.59150.134570.1650.59420.077620.2070.59150,136200.1660.59410.078790.2080.59140.137840.1670.59410.079980.2090.59130.139490.1680.59400.081170.1690.59390.082370.2100.59130.141150.2110.59120.142820.1700.59380.083580.2120.59120.144500.1710.59370.084810.2130.59110.146200.1720.59370.086040.2140.59110.147920.1730.59360.087280.2150.59100.149640.1740.59350.088540.2160.59100.151380.1750.59340.089800.2170.59100.153130.1760.59330.091080.2180.59090.154890.1770.59330.092370.2190.59090.156660.1780.59320.093670.1790.59310.094970.2200.59080.158440.2210.59080.160240.1800.59300.096290.2220.59080.162040.1810.59290.097620.2230.59070.163860.1820.59290.098960.2240.59070.165700.1830.59280.100320.2250.59060.167540.184o.59270.101.680.2260.59060.169400.185o.59260.103050.2270.59060.17127395 CJ/T3008.1-1993续表C2QQC.C.m"ISX10m0/sX100.59050.173150.2700.58920.26363:一:::0.59050.175040.2710.58910.266060.2720.58910.268510.2300.59040.176950,2730.58910.270980.2310.59040.118860.2740.58910.273470.2320.59040.180790.2750.58910.275960.2330.59030.182740.2760.58900.278450.2340.59030.1$4690.2770.58900.280970.2350.59020.186660.2780.58900.283510.2360.59020.188640.2790.58900.28607氏2370.59020.190630.2380.59010.192630.2800.58900288‘30.2390.59010.194650.2810.58890.291190.282众58890.293770.2400.59010.196680.2830.58890.296380.2410.59000.198720.2840.58890.299010.2420.59000.200790.2850.58890.301630.2430.59000.202870.2860.58880.304270.2440.58990.204960.2870.58880.306910.2450.58990.207050.2880.58880.309590.2460.58980.209160.2890.58880.312290.2470.58980.211270.2480.58980.213400.2900.588F0.314990.2490.59980.215550.2910.58870.317690.2920.58810.320400.2500.58980.217720.2930.58870.323150.2510.58980.219900.2940.58870.325910.2520.58980.222090.2950.58870.328690.253氏58970.2242902960.58860.331460.2540.58970.226490.2970.58860.334240.2550.58970.228730.2980.58860.337040.2560.58970.230980.2990.58850.339850.2570.58970.233230.2580.58960.235490.3000.58850.342680.2590.58960.23777认3010.58840.345520.3020.58840.348370.2600.58960.240050.3030.58840.351240.2610.58950.242350.3040.58830.354120.2620.58950.244660.3050.58830.357020.2630.59940.246990.3060.58830.359950.2640.58940.249330.3070.58830.362900.26505吕94025工石30。30名0.58830.365850.2660.58930.2540403090.58820.36880Q2670.58930.256420.2右80.58920.258810.5882o.371770.2690.58920.26121:一:::0.58820.37977396 CJ/T3008.1一1993续表CZh一五QC二从}一}m“/sX100.3120.58820.347058780.4924903130.58820卜3480.58780。496040.314058810.3490.58780.499580.3150.58810.3160.58810.3500.587705031303170.58810.3510.58770.506720.318058810。3520。58770.5lQ330.3190.58810.3530.58770.513970。3540.58770517580，3200.588103550.58760.521210.3210.58810.3560。58760.524870。3220588003570。58760528560.3230.58800.3580.58760.532270.3240.58800.359058760.53596032505a800.3260.58800.3600.58750.539670.32夕0.58800.3610.58750543400.3280.58800.3620。58750547170.3290.58800.3630.58750.550960。3640.58750554730.3300.58800.3650，58740。558510.3310.58800.366058740.562310。3320.58790.3670，58740，566160.3330.587903680.58740.570030.3340.58790.3690.58740573910。3350.58790.3700.58740卜577800.3360.58790.3370587903710。58740581710.3380.58790372058740.585600.3390.58790.3730，58730.589500.3740.58730.593450.3400.58790.375058730.597420.3410.58790.3760.58730.601410.3420。587803770。58730.605420.3430.58780.3780.58730。609440.3440.58780。3790，58730613460.3450.58780.380058720.6174703460.5878一0.381058720.62150397 CJ/T3008.1-1993表C3QQC.C.l/.xlom"/sX100.0600.64170.003340.1020.62120.012190.0610.64100.003480.1030.62090.012490.0620.64030.003620.1040.62050.012780.0630.63960.003760.1050.62020.013090.0640.63900.003910.1060.61990.013390.0650.63830.004060.1070.61960.013710.0660.63760.004210.1080.61930.014020.0670.63700.004370.1090.61900.014340.0680.63640.004530.0690.63580.004700.1100.61870.014660.1110.61840.014990.0700.63520.004860.1120.61810.015330.0710.63460.005030.1130.61790.015660.0720.63400.005210.1140.61760.016010.0730.63350.005390.1150.61730.016350.0740.63290.005570.1160.61710.016700.0750.63240.005750.1170.61690.017060.0760.63180.005940.1180.61660.017420.0770.63130.006130.1190.61640.017780.0780.63080.006330.0790.63030.006530.1200.61620.018150.1210.61600.018530.0800.62980.006730.1220.61580.018910.0810.62930.006940.1230.61550.019290.0820.62890.007150.1240.61530.019680.0830.62850.007370.1250.61510.020070.0840.62800.007590.1260.61480.020460.0850.62760.007810.1270.61460.020860.0860.62720.008030.1280.61440.021270.0870.62670.008260.1290.61410.021680.0880.62640.008500.0890.62600.008740.1300.61390.022090.1310.61370.022510.0900.62560.008980.1320.61350.022940.0910.62520.009220.1330.61330.023370.0920.62480.009470.1340.61310.023800.0930.62440.009730.1350.61290.024240.0940.62400.009980.1360.61270.024680.0950.62360.010250.1370.61250.025130.0960.62330.010510.1380.61230.025590.0970.62290.010780.1390.61210.026040.0980.62260.011060.0990.62220.011330.1400.61190.026510.1410.61170.02697:一:::0.62190.011610.1420.61150.027440.62150.011900.1430.61130.02792398 CJ/T3008.1-1993续表C3OQCC.m"/sX10.,/sxlo0.1440.61120.028400.1860.60510.053320.1450.61100.028890.1870.60500.054030.1460.61080.029380.1880.60490.054750.1470.61060.029880.1890.60480.055470.1480.61050.030380.1490.61030.030890.1900.60470.056200.1910.60450.056930.1500.61020.031400.1920.60440.057660.1510.61000.031920.1930.60430.058410.1520.60990.032450.1940.60420.059160.1530.60970.032970.1950.60410.059920.1540.60960.033500.1960.60410.060680.1550.60930.034040.1970.60400.061450.1560.60910.034580.1980.60390.062220.1570.60900.035130.1990.60380.063000.1580.60880.035680.1590.60870.036240.2000.60380.063790.2010.60370.064580.1600.60850.036800.2020.60350.065370.1610.60830.037370.2030.60340.066170.1620.60820.037940.2040.60330.066980.1630.60800.038520.2050.60330.067800.1640.60790.039110.2060.60320.068620.1650.60770.039690.2070.60310.069440.1660.60760.040290.2080.60300.070280.1670.60740.040890.2090.60290.071110.1680.60730.041490.1690.60710.042100.2100.60290.071960.2110.60280.072810.1700.60100.042720.2120.60270.073660.1710.60690.043340.2130.60260.074530.1720.60680.043970.2140.60250.075390.1730.60670.044600.2150.60250.076270.1740.60650.045240.2160.60240.077150.1750.60630.045880.2170.60230.078030.1760.60620.046530.2180.60220.078930.1770.60610.047180.2190.60220.079820.1780.60600.047840.1790.60590.048510.2200.60210.080730.2210.60200.081640.1800.60570.049180.2220.60190.082550.1810.60560.049860.2230.60180.083470.1820.60550.050540.2240.60180.084410.1830.60540.051220.2250.60170.085350.1840.60530.051920.2260.60170.086290.1850.60510.052610.2270.60160.08724399 CJ/T3008.1-1993续表C3OQCC.爪.l/.xlom"/s又10认0.2280.088190.2700.59920.13407仓0.229::::0.089150.2710.59920.135290.2720.59910.136530.2300.60140.090110.2730.59910.137780.2310.60130.091080.2740.59900.139030.2320.60130.092070.2750.59900.140300.2330.60120.093060.2760.59890.141570.2340.60120.094050.2770.59890.142840.2350.60110.095040.2780.59890.144130.2360.60100.096050.2790.59980.145420.2370.60100.097060.2380.60090.098080.2800.59880.146710.2390.60090.099100.2810.59870.148020.2820.59870.149330.2400.60080.100130.2830.59870.150650.2410.60070.101160.2840.59860.151970.2420.600‘0.102200.2850.59860.153300.2430.60060.103250.2860.59850.154640.2440.60050.104300.2870.59850.155980.2450.60040.105360.2880.59850.157340.2460.60030.106420.2890.59840.158700.2470.60030.107500.2480.60020.108580.2900.59840.160060.2490.60020.109670.2910.59830.161430.2920.59830.162810.2500.60020.110770.2930.59830.164200.2510.60010.111870.2940.59820.165590.2520.60010.112990.2950.59820.166990.2530.60000.114100.2960.59810.168400.2540.60000.115230.2970.59810.169820.2550.60000.116350.2980.59810.171240.2560.59990.117490.2990.59800.172670.2570.59990.118630.2580.59980.119780.3000.59800.174100.2590.59980.120940.3010.59790.175550.3020.59790.177000.2600.59970.122100.3030.59790.178450.2610.59960.123260.3040.59780.179920.2620.59960.124430.3050.59780.181390.2630.59950.125610.3060.59780.182870.2640.59950.126800.3070.59770.184350.2650.59950.127990.3080.59770.185850.2660.59940.129200.3090.59760.187350.2670.59940.130410.2680.59930.131620.59760.188850.2690.59930.13294:.:::0.59760.19037400 CJ/"r3008.1-1993续表C3hQ{QCC.刀2m"/sX10mm"/.X100.3120.59750.191890.3470.59610.249740.3130.59750.193420.3480.59610.251520.3140.59740.194950.3490.59610.253320.3150.59740.196500.3500.59600.255120.3160.59740.198050.3170.59730.199600.3510.59600.256930.3180.59730.201170.3520.59590.258750.3190.59720.202740.3530.59590.260570.3540.59590.262400.3200.59720.204320.3550.59580.264240.3210.59720.205900.3560.59580.266090.3220.59710.207500.3570.59570.267940.3230.59710.209100.3580.59570.269810.3240.59700.210710.3590.59570.271680.3250.59700.212320.3600.59560.273550.3260.59700.213950.3270.59690.215580.3610.59560.275440.3280.59690.217210.3620.59550.277330.3290.59680.218860.3630.59550.279230.3640.59550.281140.3300.59680.220510.3650.59540.283060.3310.59680.222170.3660.59540.284980.3320.59670.223840.3670.59540.286910.3330.59670.225510.3680.59530.288850.3340.59670.227190.3690.59530.290800.3350.59660.228880.3700.59520.292750.3360.59660.230580.3370.59650.232280.3710.59520.294720.3380.59650.234000.3720.59520.296690.3390.59650.235720.3730.59510.298670.3740.59510.300650.3400.59640.237440.3750.59500.302640.3410.59640.239180.3760.59500.304650.3420.59630.240920.3770.59500.306660.3430.59630.242670.3780.59490.308670.3440.59630.244420.3790.59490.310700.3450.59620.246190.3800.59480.312730.3460.59620.247960.3810.59480.31477401 CJ/T3008.1-1993C2.2=1/2时，流量公式转化为:Q=1.18125C.·hs/z“，················。···········⋯⋯(C3)流量计算查表C2,C2.3当tg普-1/4时，流量公式转化为:Q=0.590625C."hsIz.......................................(C4)流量计算查表C3.C3应用限制条件a.h/p不大于。.4;阮h/B不大于0.2;么h在0.05-0.38m之间;已p不小于0.45m;e.B不小于1.0M.附加说明:本标准由建设部标准定额研究所提出。本标准由建设部城镇建设标准技术归口单位建设部城市建设研究院归口。本标准由北京市市政工程局负责起草。本标准主要起草人:陶丽芬、李俊、王岚、王春顺、肖鲁。本标准委托北京市市政工程局负贵解释。'