Analysis on Formation Mechanism and Stability of Pan'an Landslide in Middle Zhejiang Province

Based on the basic characteristics of the landslide,its formation mechanism and the stability were studied and analyzed.The research showed that the topography and the material composition were geological conditions of the landslide,and the recent abundant rainfall was a primary induction factor of the traction-type landslide.Furthermore,the landslide was critically stable under the natural conditions.But if there were unstable conditions,the landslide would happen again.It was emergent to take measures of prevention to strengthen the drainages,and build retaining wall on foreland of the landslide so as to enhance monitoring.