Consolidation and Permeability Characteristics of Transparent Clay with Different Grain Composition

doi:10.12068/j.issn.1005-3026.2020.06.020

Abstract

Abstract: In order to visualize the internal deformation of clay during consolidation， transparent clay with similar consolidation characteristics needs to be prepared. A transparent clay which can simulate the consolidation of clay soil was prepared by using amorphous silica powder， the mixture of white mineral oil and n-dodecane. Permeability test and compression consolidation test on transparent clay with different grain composition were carried out. The experimental results show that the e-lgk， C_v-p and E_s-p curves of transparent clay are similar to those of natural clay. The higher the clay content is， the smaller the permeability coefficient is， and the smaller the consolidation coefficient is， the higher the compressibility is. The similarity between transparent clay and natural clay in consolidation and permeability shows the feasibility of using transparent clay to qualitatively simulate the consolidation deformation of natural clay.

Key words: transparent clay, grain composition, consolidation characteristic, permeability characteristic, qualitative simulation

CLC Number:

TU41

WU Ya-jun， LI Jun-peng， JIANG Hai-bo， KONG Gang-qiang. Consolidation and Permeability Characteristics of Transparent Clay with Different Grain Composition[J]. Journal of Northeastern University Natural Science, 2020, 41(6): 875-880.

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