大禹渡等冲洗式沉沙池技术改造效果分析  

Water Conservancy Project Flushing Desilting Basin Irrigation Stage of main Parameters

作　　者：王仁龙[1] 

机构地区：[1]水利部山西水利水电勘测设计研究院,山西太原030024

出　　处：《人民黄河》2013年第7期128-130,共3页Yellow River

基　　金：水利部水利水电规划设计总院泥沙研究后续项目

摘　　要：有针对性地对大禹渡沉沙池和禹门口沉沙池的主体结构进行技术改造,采集原型观测试验数据,依据现行技术规范和设计手册提出的计算公式,对沉沙池泄空冲洗、溯源冲洗和沿程冲洗三阶段主要技术参数进行计算。结果表明:技术改造后两个冲洗式沉沙池的泄空冲洗、溯源冲洗、沿程冲洗的平均排沙含沙量、单宽输沙率和水流挟沙力均发生变化,改造后冲沙效果明显优于改造前。Targeting to carry out technological reformation of the main structures of Dayudu and Yumenkou desilting basins,the paper acquired prototype observation experiment data and calculated the main technical parameters of periodic flushing desilting basin in three stages of empty-release flushing,original flushing and on-way flushing,according to the formula of current technical specification and design manual.The results show that the average sediment concentration,sediment-transport rate per unit width and sediment-carrying capacity of flow have been changed in the three stages.Sand flushing efficiency after reformation is better than before,which shows that the technological reformation can improve the efficiency of desilting basin.

关 键 词：冲洗式沉沙池 参数 大禹渡沉沙池 禹门口沉沙池 

分 类 号：TV673[水利工程—水利水电工程]