闸门调控对污染物迁移规律的影响实验研究  

Experimental Research on the Impaction of Gate Operation on Contamination Transfer in Stream Channel

作　　者：阮燕云[1] 张翔[1] 夏军[2] 张永勇[2] 张洪斌[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,武汉430072 [2]中国科学院地理科学与资源研究所陆地水循环及地表过程重点实验室,北京100101

出　　处：《中国农村水利水电》2009年第7期52-54,60,共4页China Rural Water and Hydropower

基　　金：国家自然科学基金国际合作重大项目资助(40721140020)

摘　　要：采用明渠水槽模拟河段,设置上游水闸,模拟分析不同的水流、不同的闸门开启条件下,闸门运行对水流情势和污染物迁移转化的影响。通过实验观测和模拟,研究闸门调节流量与上、下游水位的关系,分别比较了河道是否设置闸门、瞬间开闸与稳定闸门开度状态下,下泄流量污染物浓度变化。实验结果分析表明,通过合理的调度,闸门在一定开度下可以起到既保证上游污染物通过闸门,减少闸前污染物质的聚集,又可降低闸下河道沿程的污染物分布的作用,为进一步在实践中确定合理的考虑污染控制的闸坝调控方案提供了实验依据。In order to analyze the impaction of gate operation on the flow regime and contamination transfer, an experimental facility using the simulated open channel with a gate at the upstream is proposed. The experimental schemes are the variant combinations of flow rate, upstream water level, the opening height of gate and downstream water level, including different operation plans for the gate. The concentrations of pollutants are observed along the channels from upstream to the downstream in each experimental scheme. The results show that based on the reasonable operation of the gate, the gate with a fixed opening height can reduce the pollutants on the upstream by allowing it to go through the gate and decrease the distribution of pollutants along the channel on the downstream of the gate. This study provides an experimental basis for the determination of reasonable operation planning of gates considering pollution control.

关 键 词：闸门 开度 污染控制 污染物迁移规律 

分 类 号：X522[环境科学与工程—环境工程]