摘要
基于黄河刘家峡水库实测资料,分析了坝前沙坝演化过程,研究了入库水沙、洮河淤积形态及水库调度对沙坝的影响,提出了坝前沙坝抬升与主要影响因素之间的关系。结果表明:随着入库沙量增大和洮河淤积三角洲向坝前推进,坝前沙坝抬升幅度增加;随着汛期运用水位抬升,坝前沙坝抬升幅度降低。研究成果对优化水库泥沙调度方案制定具有重要意义。
Based on the measured data of Liujiaxia Reservoir,the evolution process of the sand bar in front of the dam is analyzed,and the impact of the sediment inflow,the siltation pattern of Tao River and the reservoir operation on the sand bar is studied,and the relationship between the rise of the sand bar in front of the dam and the main influencing factors is stated.The results show that as the amount of sediment entering the reservoir increases and the Tao River siltation delta advances toward the front of the dam,the uplift amplitude of the sand bar increases;as the operating water level rises during the flood season,the uplift amplitude of the sand bar decreases.The study results are of great significance for optimizing the formulation of the reservoir sediment regulation plan.
作者
王婷
周恒
苏加林
杨经会
王福运
高垠
李新杰
WANG Ting;ZHOU Heng;SU Jialin;YANG Jinghui;WANG Fuyun;GAO Yin;LI Xinjie(Yellow River Institute of Hydraulic Research, Zhengzhou 450003,China;Powerchina Northwest Engineering Corporation Limited,Xi'an 710065,China;China Water Northeastern Investigation, Design & Research Co. Ltd., Changchu 130061,China)
出处
《西北水电》
2021年第5期17-20,25,共5页
Northwest Hydropower
基金
国家重点研发计划项目(2018YFC0407400)
国家自然科学基金(42041004、51879115)
黄河水利科学研究院基本科研业务费专项(HKY-JBYW-2019-13).
关键词
刘家峡水库
沙坝
淤积形态
异重流
水库调度
Liujiaxia Reservoir
sand bar
siltation pattern
density current
reservoir operation
