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松散岩体的分形特征

李长洪

李长洪. 松散岩体的分形特征[J]. 工程科学学报, 2001, 23(4): 296-298. DOI: 10.13374/j.issn1001-053x.2001.04.002
引用本文: 李长洪. 松散岩体的分形特征[J]. 工程科学学报, 2001, 23(4): 296-298. DOI: 10.13374/j.issn1001-053x.2001.04.002
LI Changhong. Fractal Character of Loose Rock Mass[J]. Chinese Journal of Engineering, 2001, 23(4): 296-298. DOI: 10.13374/j.issn1001-053x.2001.04.002
Citation: LI Changhong. Fractal Character of Loose Rock Mass[J]. Chinese Journal of Engineering, 2001, 23(4): 296-298. DOI: 10.13374/j.issn1001-053x.2001.04.002

松散岩体的分形特征

基金项目: 

国家自然科学基金资助课题(No.50074002)

详细信息
    作者简介:

    李长洪 男,38岁,副教授,博士

  • 分类号: TU451.3;TD231.1

Fractal Character of Loose Rock Mass

  • 摘要: 构造了松散岩体的块体颗粒分形模型,用分形理论研究了松散岩体的块体颗粒分维、孔隙分维、孔隙度及它们之间的关系,得到相应的计算公式.该模型得到了工程实例的验证.
    Abstract: Fractured rock mass fractal theoretical model was construct. Block composition and porosity fractal characters of fractured rock mass were studied by using fractal theory. Block fractal number,porosity fractal number and porosity of fractured rock mass, as well as their relationship were studied and formula for calculating them were obtained When statistics are accurate enough, block fractal number is almost equal to porosity fractal number, which means that statistcal fractal dimension is almost equal to theoretical model fractal dimension otherwise, block fractal number is a little larger than porosity fractal number, which means statistical fractal number is a little larger than theoretical model fractal dimension. By applying the calculating method of fractal theoretical model to the main sgaft in Xincheng Gold Mine,the result shows that its theoretical model fractal dimension Dt is 2.4 and porosity is 22.6%.This result Played an important role in the design calculation of the grouting reinforcement project's scope, the strenth of grouting reinforcement material and the amount of grouting material. The result has been also proved to be correct by the practice.
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出版历程
  • 收稿日期:  2001-03-01
  • 网络出版日期:  2021-08-26
  • 刊出日期:  2001-04-24

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