EFFECT OF ROCK MASS STRUCTURE ON THE DYNAMICS OF LONG-RUNOUT LANDSLIDE

Rockmass structure is an inherent property of rock mass. The structural plane and rock block are the constituent elements of the rockmass structure which play an important role in the deformation of rockmass(Gu, 1979). The distinct effect of rock mass structure exists during the entire process of the long-runout rock landslide. It controls the deformation, failure mechanism and kinematics modes of the rock mass during the landsliding process. Although there are many theories, hypotheses and associated dynamics models for the long-runout landslide research, most of these models ignore the essential issue of the effect of rock mass structure. This paper systematically summarizes the features of different existing theories and dynamics models of long-runout landslide. It then focuses on the important issues of effect of rockmass structure on the key dynamics parameters, dynamics mechanism and dynamic process modeling of long-runout landslide, and puts forward potential research topics considering the effect of rock mass structure on dynamics of long-run out landslide.