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.
