平原河道灌溉渠首工程坝闸宽比合理性分析  

Analysis on the rationality of the rate between the flow widths of the dam and the sluice of the irrigation headwork project of plain rivers

作　　者：王秀芬 

机构地区：[1]黑龙江省水利科学研究院,黑龙江哈尔滨150080

出　　处：《黑龙江水利》2015年第8期27-32,36,共7页

基　　金：水利部水利技术开发基金资助项目(SJ9708);水利部"948"计划技术创新与转化项目(CT200619)

摘　　要：针对平原河道上中小型拦河灌溉渠首工程的特点,以闸坝结合布置形式为研究内容,通过工程调查和系统研究不同坝闸宽比条件下的工程特性及其合理性,得出了坝闸宽比与滩槽流量比、阻水面积比,及工程造价的关系;提出了不同坝闸宽度比对上下游水位差、消能防冲效果,以及工程造价的影响规律。研究成果可以为平原河道渠首工程设计合理选择拦河工程规模提供参考。Based on features of small and medium scaled irrigation headwork projects across plain rivers, this paper studies the combined distribution model of the dam and the sluice. By project investigation and systematic researches on the project features and rationalities under different ratios between the flow widths of the dam and the sluice, it figures out the relationships between the ratios between the flow widths of the dam and the sluice and ratio between the flow amounts of the flood-plain and the river channel, ratio between the water-block area and the channel area and the construction costs. It proposes the effecting rules of different ratios between the flow widths of the dam and the sluice on the upstream and downstream water level differences, energy elimination and rush preventing effects and construction costs. The research results can be used as reference for the proper scale selection of flood retarding projects for the design of headwork projects of plain rivers.

关 键 词：平原河道 渠首 坝闸宽比 滩槽流量比 阻水面积比 

分 类 号：TV8[水利工程—水利水电工程]