简要介绍了唐家山堰塞湖应急除险工程概况，归纳了堰塞湖有关地形地质、水情等资料的快速获取与应用技术，从形成条件、形成过程等方面对堰塞坝形成机制进行了分析，对堰塞坝做了安全性分析评估，并对溃坝洪水进行了分析计算；概要论述了唐家山堰塞湖应急除险总体方案、开漕引流方案及除险效果。

This thesis briefly introduces the emergency handling of Tangjiashan barrier lake. Combined with practice, it concludes the rapid capture and application technique of the relative landform, geologic and water information for barrier lake. From the form condition and process, the form mechanism of barrier dam is analysed analyzes.The security of barrier dam is evaluated and analyzed, and the flood propagation after the dam break is calculated. Finally, the emergency handling scheme, digging channel and draining scheme and the handling effects are briefly introduced.