人民长江Issue(15)：18-21,4.DOI:10.16232/j.cnki.1001-4179.2015.15.005
感潮分汊河道平均分流、分沙比确定方法探讨
Determination and discussion of average flow and sediment diversion ratio of tidal braided river reach
摘要
Abstract
In the tidal reach, the flow and sediment diversion ratios in branch reach change with the flood-ebb fluctuations, so the full tidal hydrology observation is difficult. Based on two full tidal hydrology observations of Hechangzhou branch in Zheny-ang reach and Taipingzhou branch in Yangzhong reach, the determination method of average flow and sediment diversion ratio is discussed. The results show that during flood tide, the flow and sediment diversion ratios are mainly influenced by the tide rising, and the diversion ratio changes greatly;the flow and sediment diversion ratios of main branch reach the largest about 2 hours be-fore the high tide. During the ebb tide, the fluvial evolution process is dominated by the ebb tide, so the flow and sediment diver-sion ratios in branch reach can be expressed by the average diversion ratios in ebb tide.关键词
感潮河段/落潮/分流比/分沙比Key words
tidal reach/ebb tide/flow diversion ratio/sediment diversion ratio引用本文复制引用
韦立新,曹双,张涛涛,肖洋..感潮分汊河道平均分流、分沙比确定方法探讨[J].人民长江,2015,(15):18-21,4.基金项目
国家自然科学基金面上项目(51279046) （51279046）
国家自然科学基金杰出青年基金项目(51125034) （51125034）
