• 中国科技核心期刊
  • RCCSE中国核心学术期刊
  • 2000年荣获陕西省优秀科技期刊二等奖
  • 2003年荣获首届《CAJ-CD 规范》执行优秀期刊奖
  • 2007年全国期刊出版形式规范检查中,获首批A类合格期刊
  • 2007年度陕西省期刊出版形式规范检查评比中,荣获优秀期刊奖
  • 2008年6月进入《中国科技核心期刊》
  • 2009年科技期刊审读评优中,荣获"陕西省特色科技期刊奖"
孙德旭, 牧振伟, 李凡琦, 贾萍阳, 张红红.弯段溢洪道导流墩联合糙条消能工水力特性试验研究水资源与水工程学报[J].,2019,30(2):166-171
弯段溢洪道导流墩联合糙条消能工水力特性试验研究
Experimental study on hydraulic characteristics of diversion pier combined with rough-strips energy dissipator in the bend spillway
  
DOI:10.11705/j.issn.1672-643X.2019.02.26
中文关键词:  弯段溢洪道  水力特性  导流墩  糙条  横向环流  水流动力轴线
英文关键词:bend spillway  hydraulic characteristics  diversion pier  rough-strip  transverse circulation  flow dynamic axis
基金项目:国家自然科学基金项目(51769037),新疆维吾尔自治区高校科研计划创新团队项目(XJEDU2017T004)
作者单位
孙德旭, 牧振伟, 李凡琦, 贾萍阳, 张红红 (新疆农业大学 水利与土木工程学院 新疆 乌鲁木齐 830052) 
摘要点击次数: 122
全文下载次数: 71
中文摘要:
      由于弯道离心力与边墙的作用,导致溢洪道内产生水面超高、横向冲击波等问题。为了充分体现加设导流墩糙条后对溢洪道内水力特性影响,通过对曲率半径与底宽比值为 2.2的60°弯段溢洪道试验研究,得到了不同试验方案下溢洪道各典型横断面的水深与水流动力轴线分布规律。结果表明:导流墩布设位置和个数均可以一定程度地改善溢洪道内水面结构形态,单一形式导流墩对弯道内水面结构改善效果不如导流墩和糙条联合布置形式;5组试验方案最大水面差及最大水深在1/5~2/5弯道横断面和4/5弯道横断面相邻上下游位置发生频率较大,且导流墩糙条联合方案的水流动力轴线更趋向弯道中轴线;相比同类消能工,导流墩糙条联合形式布置在弯道内更加节约工程造价,且施工较方便,可为实际工程设计提供理论参考依据。
英文摘要:
      Due to the effects of bend centrifugal force and abutment wall, many problems in spillway, such as water surface superelevation, transverse shock waves happen. In order to fully embody the influence of added diversion pier and rough-strip on the hydraulic characteristics of the spillway, we studied a 60° bend spillway with a 2.2 ratio of curvature radius to bottom width, and got water depth and flow dynamic axis distribution of typical cross sections of spillway in different experimental schemes. The results indicated that the location of diversion piers and numbers can improve the structure and figure of water surface in spillway to some extent, and the improvement effect of single diversion pier to water surface structure in bend was no better than the combined form of diversion pier and rough-strips. The incidence of largest water surface difference and largest water depth is larger in neighboring upstream and downstream positions of 1/5~2/5 cross section of curve and 4/5 cross section of curve, and the flow dynamic axis of combined scheme of diversion pier and strips was prone to the bend axis. Compared to other energy dissipators of the same type, the combined form of diversion pier and strips position in bend is more economical in saving construction's cost and making construction convenient, which provides theoretical referential evidence for practical construction design.
查看全文  查看/发表评论  下载PDF阅读器
关闭