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2004年12月3日,在贵州省纳雍县鬃岭镇左家营村岩脚组后山发生危岩体崩塌,崩塌体坠落后又冲击山下土坡,从而造成土坡下滑,掩埋了山下岩脚组的部分住户,形成了特大型地质灾害。据调查统计,此次灾害历时仅约2 min,共造成岩脚组19户居民受灾,12栋房屋被毁坏,7栋房屋受损。截至到12月26日,搜救工作彻底结束,共发现39人死亡,5人失踪,另外还有13人受伤。对滑坡特征、形成机理、稳定性及发展趋势进行了分析,并提出防治对策与措施。
On December 3, 2004, a dangerous rock mass collapsed in the back of the Yanjiao Formation in Zujiaying Village, Nanyong County, Guizhou Province. After the collapse body crashed and hit the mountain slope, the slope slipped and buried the mountain Rock feet group of some households, forming a large-scale geological disasters. According to the survey, the disaster lasted only about 2 minutes, causing a total of 19 households in Yanjiao Formation to be affected, 12 houses destroyed and 7 houses damaged. As of December 26, the search and rescue operation was over completely. A total of 39 people were found dead, 5 were missing, and 13 others were injured. The landslide characteristics, formation mechanism, stability and development trend are analyzed, and prevention and control measures and measures are put forward.