Abstract:Wenchuan earthquake caused hundreds of earthquake lakes with a block height over 10 m

water storage over 1.0×105 m3 and a catchment area more than 20 km2. Different types of earthquake lakes are required corresponding disposal approaches

depending on different hazard degree to downstream

conditions of geology

geomorphology and hydrology

and scale and particle sizes of block body. Based on the risk elimination practice on earthquake lakes

at the Tangjiashan in Beichuan County

Laohuyzui in Dujiangyan city

the risk elimination techniques

protection and integrated management of earthquake lakes were discussed. The key techniques applied in the risk elimination of Quake lakes

including site survey

risk assessment

design of discharge sluice channel

selection of construction method and equipments as well as post emergency disposal evaluation

were summarized.