STUDY OF QUANTITATIVE DESCRIPTION METHODS OF GEOMATERIAL MESO-STRUCTURE— TAKING SOIL ROCK MIXTURE FOR EXAMPLE
XU Wenjie1，2，XU Qiang2
(1. State Key Laboratory of Hydroscience and Engineering，Tsinghua University，Beijing 100084，China；
2. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection，
Chengdu University of Technology，Chengdu，Sichuan 610059，China)
Abstract：Geomaterials in nature have obviously structural characteristics in meso-level，which makes the engineering geological and mechanical properties are more complex than general homogeneous materials. This kind of structural characteristics，on the one hand may reflect the forming mechanism of geomaterials，and on the other hand may also effect the engineering geomechanics of geomaterials and their deformations and failure mechanisms under loading. The quantitative description methods of geomaterial meso-structure are discussed systematically. Taking the soil rock mixture(SRM) as an example，its meso-structure characteristics are studied systematically；and we found that there is very well self-organizing feature of the meso-structure of SRM in statistics level. Based on the studies，the index system used for the quantitative description of the SRM meso-structure is provided，and it is very important to the theoretical study of SRM.
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2012, Vol. 31 
