杭州西湖区域断裂分形研究及其对岩溶塌陷分布的影响

以分形理论为基础,采用网格覆盖法,研究了杭州市西湖区的断裂分形特征,并对该区的岩溶塌陷易发程度进行了分析.首先,简要介绍了研究区地质背景及断裂分数维的计算和分析方法,并计算出西湖周边区域断裂分布的总体分数维及北东向、北西向的分数维,表明本区断裂分数维能很好的反映断裂分布的空间特征;其次,结合研究区的岩溶塌陷分布,讨论了...

Fractal Analysis of Spatial Distribution of Faults around West Lake and its Influence on the Distribution of Karst Collapse

In this paper, we studied fractal characteristics of the spatial distribution of faults around West Lake with the gridcoverage
method based on Fractal theory, and then we analyzed the karst collapse susceptibility in this area. First, we outlined
briefly the geological background, the analytical methods, and calculated the fractal dimensions of both the NE-trending faults
and NW-trending faults. The results show that the fractal dimension can reflect the spatial characteristics of the fault distribution;
Second, by the study of the karst collapse of the zone, we discussed the relationship between the fractal dimensions and the
distribution of karst collapse. The results show that the NE-trending faults and NW-trending faults complement each other
in spatial distribution, and the distribution of karst collapse positively correlated with the fractal dimensions. In addition, we
quantitatively analyzed how faults control the distribution of karst collapse, which is vital for local engineering construction.