1981年7—9月间,陕西省汉中地区和宝鸡地区南部连降暴雨,发生了严重的洪涝灾害,并同时出现大量的山体变形,形成散滑、崩塌、滑坡、泥石流等灾害,给当地的工农业生产和人民生命财产造成极大损失。本文拟根据野外考察所获得的资料,经初步整理,对汉中地区崩塌型泥石流的主要特征和形成原因,提出一些粗浅认识。 Between July and September 1981, severe floods and floods occurred in Hanzhong, Shaanxi Province and the southern part of Baoji, causing massive disasters and landslides, landslides and mudslides. Industrial and agricultural production and people’s lives and property caused great losses. Based on the data obtained from the field investigation, this paper attempts to make some preliminary understanding of the main features and formation causes of the collapsing debris flow in Hanzhong area.