摘要
兴隆水利枢纽运行以来,在下泄中、小流量时,下游河道水位下降2m左右,影响了枢纽综合效益的正常发挥。基于此,采用三维数值模拟计算,提出了封堵下游横向围堰缺口段至27.8m高程,对封堵工程的结构进行了设计,对工程施工难点、重点及主要控制措施进行了分析。结果表明:封堵工程的实施,未改变工程设计标准和安全运行条件,且下游水位大幅度抬升,枢纽工程在设计工况下运行正常。
Since the operation of the Xinglong Water Conservancy Project,the downstream river water level has dropped by about 2 meters during the discharge of medium and low flow rates,which has affected the normal performance of the project’s comprehensive benefits.In response to this issue,three-dimensional numerical simulations were conducted,and a solution was proposed to block the downstream transverse weir gap section up to an elevation of 27.8 meters.The structure of the blocking project was designed,and the key challenges,focus areas,and main control measures for the construction were analyzed.The results show that the implementation of the blocking project did not alter the engineering design standards or safety operating conditions,and it significantly raised the downstream water level,allowing the project to operate normally under design conditions.
作者
刘志强
晏光辉
陈崇德
LIU Zhiqiang;YAN Guanghui;CHEN Chongde(Hubei Zhanghe Project Administration Bureau,Jingmen 448156,China)
出处
《中国水能及电气化》
2024年第12期44-50,共7页
China Water Power & Electrification
关键词
三维数值模拟
水位
封堵工程
兴隆水利枢纽
three-dimensional numerical simulations
water level
blocking project
Xinglong Water Conservancy Project
