首页
  团队
  研究成果
  -> 发表论文
  -> 科研项目
  -> 获奖情况
  -> 资料下载
  教学
  学术讨论
  在线计算
  联系我们
 
  研究成果
 
Generation of 3D Random Meso-structure
 发布时间:2016/3/28 浏览次数:1644

Generation of 3D Random Meso-structure of Soil-Rock Mixture and its Meso-structural Mechanics Based on Numerical Tests

Abstract: The mesoscopic failure mechanism and the macro-mechanical characteristics of soil-rock mixture(S-RM) under external load are largely controlled by S-RM's meso-structural features. The objective of this work is to improve the three-dimensional technology for the generation of the random meso-structural models of S-RM, for randomly generating irregular rock blocks in S-RM with different shapes, sizes, and distributions according to the characteristics of the rock blocks' size distribution. Based on the new improved technology, a software system named as R-SRM3 D for generation and visualization of S-RM is developed. Using R-SRM3 D, a three-dimensional meso-structural model of S-RM is generated and used to study the meso-mechanical behavior through a series of true-triaxial numerical tests. From the numerical tests, the following conclusions are obtained. The meso-stress field of S-RM is influenced by the distribution of the internal rock blocks, and the macro-mechanical characteristics of S-RM are anisotropic in 3D; the intermediate principal stress and the soil-rock interface properties have significant influence on the macro strength of S-RM.

点击下载论文

 

 
多尺度工程地质力学与灾害仿真 研究组  版权所有