Abstract：The stability and deformation trend judgment model of landslides is built based on cusp catastrophe theory and detrended fluctuation analysis. First of all, we evaluate the cusp catastrophe theory overall on the stability of landslides, and further discuss the phase stability characteristics of landslides.Secondly, the analysis of the previous stage is compared with the non-trend wave analysis to determine the cumulative sequence and velocity sequence of landslides. The overall and phased deformation trends are then compared with the stability analysis results to mutually support the accuracy of the analysis results. The example test shows that the results of the two analysis methods have good consistency, and that overall and each stage of the landslide are in stable states, albeit witha weakening trend. In the phased research process, the analysis results of the incremental period show obvious differences, indicating that the stage decomposition method has a greater impact on analysis results, and the regularity of the results of the analysis with increasing intervals is relatively stronger.
TIAN Chengcheng,ZHANG Chengsheng,ZHANG Lei et al. Study on Stability and Deformation Characteristics of Landslide based on Cusp Catastrophe Theory and Detrended Fluctuation Analysis[J]. jgg, 2018, 38(8): 806-810.