ISO 14139:2000 明渠中液体比重的测定-运用测量仪器在敞口管道中测定流量-复式的测量设备

标准编号：ISO 14139:2000

中文名称：明渠中液体比重的测定-运用测量仪器在敞口管道中测定流量-复式的测量设备

英文名称：Hydrometric determinations — Flow measurements in open channels using structures — Compound gauging structures

发布日期：2000-06

标准范围

本国际标准规定了河流和人工渠道流量的测量方法，使用复合结构中标准堰和/或水槽的任何组合。有关选择堰的指导和/或水槽，参考ISO 8368。所有结构都可以在模块化流量范围内运行，但只有有限的流量淹没（非模块化）流量范围内可使用的结构数量（见第4条）。复合堰提高低水位流量测量的质量。附录A描述了速度分布的特征。溺水（非模块化）流量范围内运行的标准化结构及其计算方法流程如附录B所述。附录C中给出了流量测量计算的方法和示例。无分流墩的复合流量测量结构需要现场或模型校准，且不包括在这是国际标准。

This International Standard specifies the methods of measurement of flow in rivers and artificial channels, usingany combination of standard weirs and/or flumes in a compound structure. For guidance on the selection of weirsand/or flumes, refer to ISO 8368. All structures can be operated in the modular flow range, but only a limitednumber of structures can be used in the drowned (non-modular) flow range (see clause 4). Compound weirsimprove the quality of discharge measurements at low stages.The characteristics of velocity distribution are described annex A.Structures standardized for operation in the drowned (non-modular) flow range and the method of computation offlow are described in annex B.Methods and examples of flow measurement calculations are given in annex C.Compound flow-measuring structures without divide piers need in situ or model calibrations and are not covered bythis International Standard.

标准预览图