滑坡活动空间分布的多重分形特征及其预测意义

Study on the Multifractal of the Spatial Distribution of Landslides Activities and Its Significances

根据分形理论 ,研究了西藏樟木地区滑坡活动空间分布的多重分形特征。结果表明 ,不同时段滑坡活动空间分布的多重分形指数谱能够很好地描述滑坡活动的不确定性和随机性特征。滑坡活动的多重分形提供的信息对认识滑坡应力场的不均匀程度和滑坡系统从稳态向非稳态的转化过程有重要的意义。

The multifractal feature of the spatial distribution of landslides activities of the Zhangmu area in Tibet of China is studied in detail based on fractal theory. The results show that the uncertainty and randomness of landslides activities can be described by the multifractal spectrum of the spatial distribution of landslides activities in the different periods. The multifractal information of landslides activities has an important significance to realize nonuniform extent of stress field of landslide and change process of landslide system from stable state to unstable state.