摘要
阐述土石混合料的粒度分布具有分形特征,分形理论可用来描述土石混合料的粒度分布。采用质量来确定DF较为方便,且能获得令人满意的效果,同时,颗粒分析试验的数据可直接用来计算DF。研究结果表明,分维值越高,细粒物质的相对含量就高;分维数越低,粗粒料的含量就越高。将DF作为土石混合料的分类指标,具有一定的可能性。
This paper expatiates that the grain size distribution of soil-stone mixed materials has the fractal features, and the fractal theory can be used to describe the grain size distribution of soil-stone materials. It is convenient to determine DF _by means of mass and the satisfactory result can be obtained, in the meantime the data from the grain size analysis test can be used directly to calculate DF.. The result of research shows that the higher the fractal dimension, the higher the relative content of fine-grained materials ; and the lower the fractal dimension, the higher the content of coarse-grained materials. Therefore, there is a certain possibility to use Dr as the classification index for soil-stone mixed materials
出处
《公路交通技术》
2009年第6期1-4,共4页
Technology of Highway and Transport
基金
西部交通建设科技项目(200231800034)
西部交通建设科技项目(2008318740054)
重庆市科技委员会科技攻关项目(CSC72008AC6113)
关键词
分形
分维
土石混合料
fractal
fractal dimension
soil-stone mixed materials
