淮河蚌埠以下河道治理前后糙率变化  

Analysis of the river roughness of Huaihe River channels in lower reaches of Bengbu before and after its regulation

作　　者：王守勤[1] 胡星[1] 储德义[2] 

机构地区：[1]中水淮河规划设计研究有限公司,安徽蚌埠233001 [2]水利部淮河水利委员会,安徽蚌埠233001

出　　处：《水利水电科技进展》2014年第6期62-65,69,共5页Advances in Science and Technology of Water Resources

摘　　要：为了给平原河道治理工程提供参考和借鉴,针对淮河蚌埠以下河道建立一维水动力模型,采用1991年及2008年测量的河道断面资料及相应的实测洪水资料率定模型,就河道治理前后的糙率参数变化进行分析评价。结果表明:对于无水生植物生长的平原河道,经过挖泥船水下作业、局部堤防退建、抛石护岸等治理后,主槽和滩地的糙率均有不同程度的增加。In order to provide reference for plain river regulation project, this study established a one-dimensional hydrodynamic mathematical model of Huaihe River channels in lower reaches of Bengbu, and then analyzed the roughness from beginning to the end of the river regulation based on the bathymetry from 1991 and the re-surveyed data in 2008. Overall, the results showed： in plain river channels without hydrophyte, the river roughness increased in varying degrees after river regulation including dredge of underwater operation, retreat built embankments and riprap bank.

关 键 词：河道糙率 平原河流 水下挖疏 堤防退建 抛石护岸 淮河 

分 类 号：TV85[水利工程—水利水电工程] TV143