梯级水电站面临堰塞湖灾害时应对措施研究

Study on Emergency Responses of Cascade Hydropower Stations Facing Dammed Lake Disaster

我国西南地区水电开发处于新的高峰期,但山体存在大量的滑坡、崩塌点,极易形成堰塞湖灾害,这势必对已建、特别是在建水电站等造成严重威胁和不利影响。结合近年金沙江上游发生的地质灾害,尤其是白格岸坡垮塌阻塞金沙江的具体事例,研究白格堰塞湖溃决洪峰对下游梯级电站的影响,找出梯级电站面对上游堰塞湖溃决洪峰的有效应对措施,为今后发生类似地质灾害采取应对措施时提供参考。

Hydropower development in Southwest China is at a new peak,but there are a large number of landslides and collapses in the mountains,which can easily cause dammed lake disasters and pose a serious threat and adverse impact on the existing hydropower stations and in particular on those which are under construction.Based on the geological disasters occurred in the upper reaches of Jinsha River in recent years,and the specific case in which the Jinsha River is blocked due to slop collapse of Baige bank,this paper studies the impact of outburst flood peak of Baige dammed lake on downstream cascade hydropower stations,and finds out the effective response measures for cascade hydropower stations when facing outburst flood peak from the upstream dammed lake,and the findings in this paper can be referenced when similar geological disasters occur in future.