摘要
我国小水库众多,在局部极端强降雨的影响下,溃决风险很大。小型土石坝水库漫顶溃决有两个明显的阶段,第一阶段为下游陡坎发展阶段,该阶段历时相对较长,第二阶段为陡坎坍塌后的溃决阶段,历时较短。针对土石坝溃决的特点,简要分析了极端强降雨条件下小水库溃决失事的应对措施,希望对该类事件有一定的参考意义。
There are numerous small reservoirs in China, and the dam failure risk is very high under extreme weather events in local regions. The dam failure process of small embankment dams has two distinct stages. In the first stage, the headcut forms and advances upstream; in the second stage, the dam failure occurs after the headcut collapses. The first stage is a relatively long, and the second stage is rather short. In view of the characteristics of embankment dam failure, this paper briefly discusses the emergency responses for dam failure under the extreme rainfall condition, in hoping those measures are valuable to this type of events.
出处
《中国防汛抗旱》
2017年第5期93-95,共3页
China Flood & Drought Management
基金
国家自然基金项目(51509263)
中国水科院科研专项(JZ0145B772017)
关键词
小水库
溃决过程
应对措施
small reservoirs
dam-break process
countermeasures
