ISO 14139-2000 水文测验应用建筑物做明渠水流测量复合测流建筑物

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【英文标准名称】:Hydrometricdeterminations-Flowmeasurementsinopenchannelsusingstructures-Compoundgaugingstructures
【原文标准名称】:水文测验应用建筑物做明渠水流测量复合测流建筑物
【标准号】:ISO14139-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-06
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC113
【标准类型】:()
【标准水平】:()
【中文主题词】:流水;水流;液体流动;定义;组合桁架系统;符号;计量学;流速测量;测量技术;流量测量;明渠;测量设备
【英文主题词】:Compositetrussing;Definitions;Flowmeasurement;Flowmeasurements;Hydrometer;Liquidflow;Measuringequipment;Measuringtechniques;Metrology;Openchannels;Runningwaters;Symbols;Waterflows
【摘要】:ThisInternationalStandardspecifiesthemethodsofmeasurementofflowinriversandartificialchannels,usinganycombinationofstandardweirsand/orflumesinacompoundstructure.Forguidanceontheselectionofweirsand/orflumes,refertoISO8368.Allstructurescanbeoperatedinthemodularflowrange,butonlyalimitednumberofstructurescanbeusedinthedrowned(non-modular)flowrange(seeclause4).Compoundweirsimprovethequalityofdischargemeasurementsatlowstages.ThecharacteristicsofvelocitydistributionaredescribedannexA.Structuresstandardizedforoperationinthedrowned(non-modular)flowrangeandthemethodofcomputationofflowaredescribedinannexB.MethodsandexamplesofflowmeasurementcalculationsaregiveninannexC.Compoundflow-measuringstructureswithoutdividepiersneedinsituormodelcalibrationsandarenotcoveredbythisInternationalStandard.
【中国标准分类号】:N51
【国际标准分类号】:17_120_20
【页数】:41P.;A4
【正文语种】:英语