本文以福建省高盖山隧道区线性构造为研究对象,对其进行了分形特征研究。应用GIS和RS技术对该区的SPOT遥感影像进行线性构造信息的提取,利用线性构造分布图,使用盒计维数法计算该区线性构造的分维值。结果表明,高盖山隧道区线性构造具有分形特征,根据岩体工程质量标准,研究区应属“好”的级别,对于铁路隧道的建设较为有利。分形理论为线性构造的研究提供了定量化的技术手段,并可为相关工程地质评价提供一个量化的指标。 In this paper, we take the linear structure of the tunnel in the Gaoganshan area of ​​Fujian Province as the research object and study the fractal characteristics. Applying GIS and RS technology, the linear tectonic information was extracted from the SPOT remote sensing images in this area. The fractal dimension of the linear structure in this area was calculated by using the Cartesian dimension method. The results show that the linear structure of the tunnel in the Gaoganshan area has the fractal characteristics. According to the quality standards of rock mass, the study area should be at the level of “good”, which is more favorable for the construction of the railway tunnel. Fractal theory provides a quantitative technical means for the study of linear structure, and can provide a quantitative indicator for related engineering geological evaluation.