水利水电科技进展
水利水電科技進展
수이수전과기진전
ADVANCES IN SCIENCE AND TECHNOLOGY OF WATER RESOURCES
2014年
6期
62-65,69
,共5页
河道糙率%平原河流%水下挖疏%堤防退建%抛石护岸%淮河
河道糙率%平原河流%水下挖疏%隄防退建%拋石護岸%淮河
하도조솔%평원하류%수하알소%제방퇴건%포석호안%회하
river channel roughness%plain river%dredge of underwater operation%retreat built embankments%riprap bank%Huaihe River
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。
為瞭給平原河道治理工程提供參攷和藉鑒，針對淮河蚌埠以下河道建立一維水動力模型，採用1991年及2008年測量的河道斷麵資料及相應的實測洪水資料率定模型，就河道治理前後的糙率參數變化進行分析評價。結果錶明：對于無水生植物生長的平原河道，經過挖泥船水下作業、跼部隄防退建、拋石護岸等治理後，主槽和灘地的糙率均有不同程度的增加。
위료급평원하도치리공정제공삼고화차감，침대회하방부이하하도건립일유수동력모형，채용1991년급2008년측량적하도단면자료급상응적실측홍수자료솔정모형，취하도치리전후적조솔삼수변화진행분석평개。결과표명：대우무수생식물생장적평원하도，경과알니선수하작업、국부제방퇴건、포석호안등치리후，주조화탄지적조솔균유불동정도적증가。
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.
