震后第三周,全力减轻堰塞湖等次生灾害,成为救灾的主战场之一汶川地震后第三周,堰塞湖成为救灾焦点。连日来,被列为“极高危险级”的唐家山堰塞湖,其天气状况、抢挖进展一直受到持续关注。截至29日下午,唐家山堰塞湖泄流槽开挖最高处有10余米。据 In the third week after the earthquake, efforts were made to alleviate the secondary disasters such as the dammed lake and become one of the main battlefields for disaster relief. In the third week after the Wenchuan earthquake, the dammed lake became the focal point for disaster relief. In recent days, the Tangjiashan dammed lake, which is listed as “extremely dangerous”, has been receiving continuous attention for its weather conditions and for the progress of its excavation. As of the afternoon of the 29th, Tangjiashan barrier lake drainage trench excavation has a maximum of 10 meters. according to