The Touzhai landslide is a large-scale landslide since the 1990s. The study of formation and evolution have important significance for the prediction and prevention of similar landslide. First, the current research situation of the Touzhai landslide is discussed,and research the reason of the Touzhai landslide by the diffraction of X-ray and geological history of the emeishan basalts. Lastly, the conclusion by the study of the precipitation is got. The Touzhai landslide is neither rockslide nor landslide. It is a special landslide between them.%头寨滑坡是20世纪90年代以来比较严重的大型滑坡,其形成演化研究对于同类滑坡发展趋势预测和防治有重要意义.首先论述头寨滑坡的研究现状,根据峨眉山玄武岩发育演化的地质历史和根据X射线衍射分析等手段,进一步验证得出的结论,研究头寨滑坡发生的原因.并从堆积物组成分析结合对当地降雨量统计研究,得出头寨滑坡既非土滑也非石滑,而是介于两者之间的一类特殊滑坡.
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