高盖山隧道区线性构造空间分形特征分析

Spatial fractal characteristics of remote sensing lineament analysis in Gaogaishan tunnel area

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。

The fractal characteristic of the lineament Gaogaishan tunnel area in Fujian Province was selected for the study. Using GIS and RS technologies to extract the lineament information from the SPOT remote sensing image of this area, the fraetal dimension value was calculated by the application of box-dimension method based on the lineament distribution map. Results showed that the line- ament in Gaogaishan tunnel area has fractal characteristic, and its fractal dimension value is 1. 1929 ; the rock mass quality of Gaogais- ban tunnel area belongs to the class of ＂good＂ according to the Engineering grade of rock mass.