The landside deformation is the result of the geological condition,precipitation and human activities.precipitation is the most important factor for forming Landslide,which is of layer-structure.

• 滑坡成因主要由水的作用引起的,滑坡体上部地层土层结构松散,土质亲水性强,且土体处在山的斜坡上,在饱水之后形成下滑。同时,人为因素也是引起贾沙滑坡产生的主要因素之一。