基于分形理论的岩石质量评价  

Quality Evaluation of Rock Mass Based on Fractal Theory

作　　者：范卫锋[1] 林启太[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070

出　　处：《矿业研究与开发》2005年第3期31-33,共3页Mining Research and Development

摘　　要：为了揭示地质数据的内在关系,深层次地反映节理岩体的工程地质特点,分析讨论了岩体结构面的分形特征,提出了一种利用分形分布、节理密度、岩石质量指标RQD和结构面间距分布形式的联系来评价岩体质量的方法。研究表明,分维数D能够弥补方法CSIR在评价岩体质量中的某些不足,可以作为岩体质量评价的一个定量指标。In order to reveal the inherent relation of geological data and reflect deeply the engineering-geological characteristic of the jointed rock mass. In this paper, The fractal characteristics of discontinuity in rock mass was analyzed, put forward a new method to evaluate rock mass quality (RMQ) by using the relations of fractal distribution and density of joint, rock mass designation (RQD), and the distribution of interval between discontinuity in rock mass. The research indicated that the fractal dimension D can avoid the some shortcomings of CSIR method in evaluating the quality of rock mass, and can be used as a quantitative index for evaluating the quality of rock mass.

关 键 词：岩石质量 分形理论 岩体结构面 分维数 RQD 

分 类 号：TU452[建筑科学—岩土工程]