ISO/TR 9212-2006
液体比重测定法.明渠水流测量.水流细沙测量方法
Hydrometry - Measurement of liquid flow in open channels - Methods of measurement of bedload discharge
- 标准号
- ISO/TR 9212-2006
- 发布日期
- 2006年08月
- 实施日期
- 废止日期
- 无
- 中国标准分类号
- P12
- 国际标准分类号
- 17.120.20
- 发布单位
- 国际标准化组织
- 代替标准
- ISO/TR 9212-2015
- 适用范围
- This Technical Report reviews the current status of direct and indirect bedload-measurement techniques. The methods are mainly based on grain size distribution of the bedload, channel width, depth and velocity of flow. This Technical Report outlines and explains several methods for direct and indirect measurement of bedload in streams, including various types of sampling devices. The purposes of measuring bedload transport rates are to: a) increase the accuracy of estimating total sediment load in rivers, b) gain knowledge of bedload-transport that cannot be completely measured by conventional suspended-sediment collection methods, c) provide data to calibrate or verify theoretical transport models, and d) provide information needed in the design of river diversion and entrainment structures. NOTE The units of measurement used in this Technical Report are SI units.