论文部分内容阅读
对引黄渠首引水引沙施测现状分析表明：引水流量在10m3／s以上采用仪器方式进行水量施测，其施测精度基本上可满足规范要求；10m3／s以上采用泄流曲线推求以及10m3／s以下者，其施测精度需进一步改进。而沙量施测精度由于受多种因素制约，基本上不能满足测验规范的要求。在分析造成整体水沙施测水平不高原因的基础上，提出了提高引黄渠首水沙施测水平的具体措施。
The analysis on the status quo of water diversion and sediment dredging at the headrace of the Yellow River shows that: the water diversion flow rate above 10m3 / s is measured by instrumental method, and the precision of its application can basically meet the requirements of the regulation; the discharge curve above 10m3 / s is used to calculate 10m3 / s the following, its measurement accuracy needs to be further improved. The accuracy of sand measurement due to a variety of factors, basically can not meet the requirements of test specifications. Based on the analysis of the causes of the low level of overall water and sediment measurement, the specific measures to improve the level of water and sediment in the diversion of the Yellow River are put forward.