圧密による砂-粘土混合土の微視的構造の変化

概要

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The macroscopic behaviors of soil ground such as compression and deformation consist of the integrated microscopic behaviors of soil particles and pores such as movement and entrapment. Resultant compression and deformation of soil ground are mlutiple behaviors, because of the wide variation for soil particle shape, size and type, a charge and chemical action of clay particles and the heterogeneity for structure of pore size distribution. The conventional consolidation tests were carried out to investigate the consolidation characteristics for sand-clay mixed soils, and their pore size distributions and microstructures were examined by using mercury-intrusion porosimetry (MIP) and scanning electron microscope (SEM). As a result, it was found that small intra-aggregate pores were not compressed until all macro pores have been collapsed due to the consolidation proceeding, and the largest interaggregate pores were the first affected.
日本粘土学会の論文
2009-04-10