摘要
2018年11月3日,金沙江上游河段发生大规模山体滑坡,形成堰塞湖,溃决洪水对下游造成了巨大破坏。长江委紧急对中游梯级水电站进行调蓄调度。运用MIKE软件对金沙江中游河道进行洪水演进计算,分析了中游梯级水电站在应急处置中的减灾效果,结果表明:若无中游梯级水库调蓄洪水作用,梨园水库下游沿江城镇将增加淹没面积约160 km^2;中游梯级水电站成功将洪水拦截在水库中,截断了破坏性的溃坝洪水向大理、楚雄方向延伸。建议加快金沙江上游梯级电站的建设,形成梯级规模。
On November 3,2018,a large-scale landslide occurred in the upper reaches of the Jinsha River formed a barrier lake,and the break flood caused huge damages to the downstream.The Changjiang Water Resources Commission of the Ministry of Water Resources urgently regulated and dispatched the midstream cascade hydropower stations.The MIKE software is used to calculate the flood evolution of the middle reaches of the Jinsha River,and the disaster reduction effect of the midstream cascade hydropower stations in emergency response is analyzed.The results show that,(a)if there is no flood regulation effect of the cascade reservoirs in the middle reaches,the towns along the river downstream of Liyuan Reservoir will increase the submerged area by about 160 km 2;and(b)the cascade hydropower stations in the middle reaches successfully trap the floods in their reservoirs,and intercept the destructive dam-breaking floodwater extending in the direction of Dali and Chuxiong.It is recommended to accelerate the construction of cascade power stations on the upper reaches of the Jinsha River to form a larger cascade regulation capacity.
作者
陈祖煜
胡贵良
张强
吴帅峰
CHEN Zuyu;HU Guiliang;ZHANG Qiang;WU Shuifeng(China Institute of Water Resources and Hydropower Research,Beijing 100048,China;Huadian Jinsha River Upstream Hydropower Development Co.,Ltd.,Chengdu 610015,Sichuan,China;Xi an University of Technology,Xi an 710048,Shaanxi,China)
出处
《水力发电》
北大核心
2020年第8期59-63,共5页
Water Power
基金
中国水科院基本科研业务费项目(GE0145B412019)
中国科学院咨询评议项目(2018-Z16-A-033)。
