百色水文站悬移质输沙率测验方式调整分析

Adjustment of suspended sediment discharge measurement method at Baise Hydrological Station

受上下游水工程拦蓄影响,河流流速变缓,水流的挟沙能力降低,对百色水文站泥沙测验影响极大。为此,通过对该站历年输沙率测验的情况分析,率定出稳定的历年综合单断沙关系线,经检验:其精度达到水文相关规范及水文巡测要求,可用来进行水文泥沙资料的整编。

Flow velocity decrease and silt carrying capacity of river drops due to influence of upstream and downstream hydraulic works, which renders great influence on sediment measurement at Baise Hydrological Station. Based on analysis of the sediment discharge measurement records over the years, stable comprehensive single-section sediment curve was calibrated. Results of examination demonstrate its accuracy conforms to requirements of specification and hydrological patrol metering. It can be used for compiling sediment data.