孤山航电枢纽工程坝址水文特性分析  

Analysis of hydrological characteristics at dam sit of Gushan Navigation and Hydropower Project

作　　者：贾建伟 卢满生 刘昕 何康洁 JIA Jianwei;LU Mansheng;LIU Xin;HE Kangjie(Bureau of Hydrology,Changjiang Water Resources Commission,Wuhan 430010,China)

机构地区：[1]长江水利委员会水文局,湖北武汉430010

出　　处：《水利水电快报》2023年第6期6-10,27,共6页Express Water Resources & Hydropower Information

摘　　要：孤山航电枢纽是汉江干流梯级开发的第8级,受上游梯级水库群的影响,其水文特性较天然状况已发生改变。根据孤山航电枢纽所在流域的水文、气象资料,在分析上游水工程调蓄影响的基础上,对工程区域的水文特性进行研究。结果表明:孤山航电枢纽坝址来水量以安康水库以上为主;受华西秋雨影响,径流年内分配不均匀、存在7月和9月两个明显的高值,夏、秋季洪水分期明显;安康水库运行以来,该枢纽入库沙量大幅减少。Gushan Navigation and Hydropower Project is the 8th cascade reservoir on the mainstream of Hanjiang River.Compared with natural conditions,its hydrological characteristics have changed due to the influence of upstream cascade reservoirs.Research of hydrologic charactristics of Gushan engineering area was conducted based on the hydrometeorological data of Gushan Navigation and Hydropower Project and the impact on upstream reservoir regulation.The results indicated that the inflow of the Gushan Navigation and Hydropower Project was mainly from the area above Ankang reservoir.And the annual runoff distribution was uneven,affected by the autumn rainfall in West China,with two obvious high values in July and September.Besides,summer and autumn flood stages were obvious.Since the operation of Ankang reservoir,the sediment discharge had reduced greatly.

关 键 词：水文特性 径流量 输沙量 孤山航电枢纽工程 汉江 

分 类 号：P339[天文地球—水文科学]