The Fractal Characteristics of the Landslides by Box-Counting and P-A Model

5th Annual International Conference on Material Science and Environmental Engineering

材料科学;生态环境科学

Wang, Zhiwang^1,2,3 ; Zhou, Fangfang^1,2,3 ; Cao, Hao^1,2,3

Changjiang River Scientific Research Institute, Wuhan, China^1

Res. Center on Water Engineering Safety and Disaster Prevention of the Ministry of Water Resources, Wuhan, China^2

Research Center on National Dam Safety Engineering Technology, Wuhan, China^3

关键词: Box-counting;    Characteristics of dynamics;    Fractal characteristics;    Geometric shape;    Inter-reactions;    Landslide hazard;    Power law distribution;    Self similarity properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/301/1/012142/pdf
DOI  :  10.1088/1757-899X/301/1/012142

来源: IOP

【 摘 要 】

The landslide is a kind of complicated phenomenon with nonlinear inter-reaction. The traditional theories and methods are difficult to study the uncertainty characteristics of dynamic evolution of the landslides. This paper applies box-counting and P-A model to study the fractal characteristics of geometric shape and spatial distribution of the landslide hazards in the study area from Badong county to Zigui county in TGP reservoir region. The data obtained from the study area shows power-law distributions of geometric shape and spatial distribution of the landslides, and thus reveals some fractal or self-similarity properties. The fractral dimensions DAPof the spatial distribution of landslides by P-A model shows that DAPof the western landslides in the study area are smaller than those of the east, which shows that the geometry of the eastern landslide is more irregular and complicated than the western ones. The results show box-counting model and P-A model can be used to characterize the fractal characteristics of geometric shape and spatial distribution of the landslides.