胡志根,孟德乾,黄天润,冀培民.单戗堤立堵截流龙口的水力特性试验研究[J].水利学报,2011,42(4): |
单戗堤立堵截流龙口的水力特性试验研究 |
Experimental study on hydraulic characteristics of gap in end-dumping closure with single embankment |
|
DOI: |
中文关键词: 立堵截流 龙口水力参数 单戗堤 截流模型试验 |
英文关键词: end-dumping closure hydraulic parameters gap single embankment model test |
基金项目: |
|
摘要点击次数: 2677 |
全文下载次数: 815 |
中文摘要: |
在水利水电工程截流过程中,截流龙口的局部落差、龙口水流流速、龙口水深以及龙口单宽流量等水力参数直接决定截流的难度。本文针对非对称和水流比降大的河道截流,采用物理模型试验方法,观测分析截流进占方式、龙口位置与龙口水流流态及其水力参数的关系,比较不同截流进占方式对水力参数的影响,给出单戗立堵截流龙口局部水力参数与截流困难程度之间的联系及其变化特性,为单戗堤立堵截流的计算分析和工程设计提供
参考。 |
英文摘要: |
The relationships between location of gap and flow pattern in gap as well as the relevant hydrau?
lic parameters for different working mode of end-dumping closure with single embankment in a hydropower project,located in large gradient and asymmetric river channel,were studied by model test. The effects of closure working mode on hydraulic characteristics of flow in gap were investigated and the relationship between hydraulic parameters and the difficulty of closure was analyzed. The optimal location of gap in closure was suggested. |
查看全文
查看/发表评论 下载PDF阅读器 |
关闭 |