河宽分段流量不等时的单次流量不确定度计算

Single discharge and uncertainty calculation for river width sectioning discharge in uneven time

对单次流量不确定度计算 ,提出了在宽深比 (B/d)大于《河流流量测验规范》规定的范围时 ,可进行河宽分段 ,并计算每段随机不确定度 (X′Qi)和系统不确定度 (u∧Si)等各不确定度的方法。根据误差传播理论和公式对各不确定度进行综合 ,从而计算出全断面的单次流量不确定度。

This paper divides river width into section and calculates radom unsure measure (X′ Q i ) in every section,system uncertain measure(u∧ s 1 ) and so on when the rate to width and depth (B/) is more than the range which is provided by “test standard of river discharge”.According to error spreading theory and formula to synthesize every kind of uncertain measure to work out single discharge uncertain measure in complete section. [WT5HZ]