摘要
岩体质量指标(RQD)是工程岩体性态评价的重要参考数之一。RQD为裂隙组数、裂隙数目、方位、间距及取样方向的函数。本文基于裂隙方位、间距、长度分布的随机模型,采用计算机模拟技术,获得任一实际工程方向上的裂隙网络形式,进而根据裂隙间距以及受裂隙定界的块体的统计自相似性,引入分形理论,分别建立RQD与分维D相关的实验模型。
The Rock Quality Designation (RQD) is one of significant parameters used to evaluate the behaviour of engineering rock mass, which is a function of set number,amount,orientation,spacing and sampling direction of fractures. In this paper, the fracture network in real direction of the project can be obtained by computer simulating technique on the basis of stochastic models of fracture orientation, spacing and trace length distributions. So, according to statistical self-similarity of fracture spacings and blicks bounded by fractures, the empirical models regarding the relationship between RQD and fractal dimension D was respectively established using a fractal theory.
出处
《中国矿业》
1993年第3期54-60,共7页
China Mining Magazine
关键词
岩体
质量
分数维
裂隙网络模拟
Rock mass quality, Fractal dimension, Simulation of fracture network
