黄河下游河道裁弯比对引河发展的影响研究  

Study on the Effect of Bend Cut-off Ratio on the Development of the Distributary Channel in the Lower Yellow River

作　　者：张林忠[1] 乔景顺[2] 赵新建[1] 顾霜妹[1] 

机构地区：[1]黄河水利科学研究院水利部黄河泥沙重点实验室,河南郑州450003 [2]黄淮学院,河南驻马店463000

出　　处：《人民黄河》2013年第4期1-2,21,共3页Yellow River

摘　　要：借助实测资料及模型试验研究成果,分析了国内外裁弯比研究现状以及黄河下游自然裁弯的裁弯比,通过模型试验研究了黄河下游裁弯比对引河发展的影响。结果表明:裁弯比是引河能否顺利冲开并达到分流要求的关键因素之一,裁弯比愈大,引河过流愈大,发展愈快,最终分流效果愈好;黄河下游宽河道的裁弯比可按3.0～7.0来控制。This paper analyzed the research status of bend cut-off ratio both at home and abroad and the natural bend cut-off ratio of the lower Yellow River through the observed data and the results of model test,then studied the effect of bend cut-off ratio on the development of the distribu- tary channel in the lower Yellow River through model test. The results show that ： the bend cut-off ratio is one of the key factors whether the distribu- tary channel can break through and diverse or not, the bend cut-off ratio gets greater, the capacity of the distributary channel flow becomes larger, and the effect of diversion will be better eventually, the bend cut-off ratio can be 3 - 7 in the wide river channel of the lower Yellow River.

关 键 词：引河 裁弯比 分流 黄河下游 

分 类 号：TV852[水利工程—水利水电工程] TV882.1