Evaluation of landslide risk based on synchronization of nonlinear motions in observed data

摘要: This work proposes an approach to evaluate the landslide risk from observed data by means of synchronization effects nonlinear motions, forming a judgment on linkage between two physical phenomena, slope failure and motion. Phase spatial motion is essential prerequisite for occurrence, connection phase behaviors associated with triggering factor at different points, as definite mark, constitutes sufficient criterion forecast coming risk. Both them can be obtained through analysis based method empirical mode decomposition, Hilbert transform order parameter description synchronization. Direct action cause generalized behavior, otherwise must searched three movement patterns follows: damage spread up slope, down slope. The first one shows orderly appearing peak values points second has that lock vary in same rhythm longer time period, last combination cases. Investigations Vaiont occurred October 9, 1963, Italy, Xintan June 12, 1985, China, examined effectiveness proposed approach, also, examples, provided possible principle effective measures put it into practice early warning landslide.