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以长江三峡地区和坝区的实际断层图为基础，用盒维数法验证断层分布（不含主断层）的自相似性，分析讨论不同区域、不同层次上断层分布的分形特征及其变化规律，研究结果表明：三峡地区的断层分布具有很强的统计自相似性。三峡坝区内的不同层次的断层分布均存在分形结构，次级断层的分维数高于该区域内大断层的分维数。
Based on the actual tomograms of the Three Gorges area and the dam area in Yangtze River, the box dimension method is used to verify the self-similarity of fault distribution (excluding the main faults), and the fractal features and variations of fault distribution in different regions and layers are analyzed and discussed The results show that the fault distribution in the Three Gorges area has a strong statistical self-similarity. The fault distributions at different levels within the Three Gorges Dam area all have fractal structure. The fractal dimension of the secondary fault is higher than the fractal dimension of the fault in this area.