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 Posted: Thu 13:45, 23 Dec 2010 Post subject: air jordan shoes cheap Clayey soil under triaxial |
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Clayey soil under triaxial compression with the load dynamics of fine structure of quantitative adjustment
ionofnonsaturnatedsixthsample'spores the above analysis, can be found in the axial strain reached 15% of the compression process, the surface soil samples did not show significant damage to features such as cracks, broken surface, such as cutting, but by microscope observation and quantitative analysis, see to either form or structure of the fine structure parameters of significant changes have occurred, and this change has gradually increased as the strain of development, specifically as reflected in the soil particles and pore size, roundness, distribution, fractal dimension,[link widoczny dla zalogowanych], orientation degree of orientation angle changes of fine structure on the parameters. 3 Conclusion and Outlook fine structure of soil to accommodate the load by dynamically adjusting to changing conditions, and only in the understanding of this dynamic adjustment process on the basis, it helps to further study the fine structure on the mechanical behavior of soil macro-control role and the establishment of appropriate constitutive relations. Through this experiment, analysis shows that: 1) For the sample of artificial disturbance produced, as the strain increases, the body of the Group of particle concentration is decreased and increased the degree of clutter. Mainly due to the particle distribution in the initial stage of loading HAVE BEEN fully uniform, the spatial distribution of particles has been optimized for a considerable degree of choice, not pressure after the spatial arrangement of its greater impact; 2) porosity and Aggregate changes in particle there is a certain relationship, that is, the distribution trend of pore size distribution and particle concentration the opposite trend, particle size distribution messy agglomeration degree is higher, more concentrated pore distribution; 3) With the increase of load , the orientation angle interval probability distribution of the particles Aggregate the trend toward change in the average particle agglomeration body alignment toward the direction of disorderly; compared Aggregate particles, pore orientation angle 45. ~ 9O. And 270. A 315. Direction, the distribution has a relatively large proportion of orientation than particle arrangement; 4) ability to resist deformation of soil and soil particle distribution in the fractal dimension is directly proportional to the orientation and degree of soil particles is inversely proportional relationship. Under load,[link widoczny dla zalogowanych], soil morphological changes through its own, arranged in the form of adjustments, and gradually forms the transition to a stable load,[link widoczny dla zalogowanych], the deformation gradually decreases to the development. The fine structure fine structure of the test system in the acquisition of image information while on the macro-mechanical parameters of soil collected are still not complete and needs further reform to achieve the structural elements of the obtained quantitative parameters and macro-evaluation of the mechanical parameters of soil together in nature, and to determine the interaction between the purpose of the law. References: [1] GORGE Lee to the full, official State Lin, et al. Quantitative model of clay microstructure and engineering geological properties of [M]. Beijing: Geological Publishing House, 1995. [2] ZhouYuquan, HongBaoning. Experimentalresearchonmi-crostmcturcchangesofclayeysoilinprocessofcompression [J]. JournalofRockandSoilMechanics,[link widoczny dla zalogowanych], 2005,26 (Supp) :82-86. [Zhou Yuquan, Hong Baoning. Fine clay in the compression process of structural change tests [J]. Rock and Soil Mechanics, 2005,26 (Suppl) :82-86. ] [3] LiuJinghui,[link widoczny dla zalogowanych], HongBaoning, ZhangHaibo. Anewexperi �� mentalmethodofsoilmicrostructurechangingprocess ��J]. JournalofRockandSoilMechattics. 2003,24 (5) :744-747l [Liu Jinghui, Hong Baoning, Haibo. Fine structural changes in the process of soil test methods [J]. Rock and Soil Mechanics, 2003,24 (5) :744-747. ] [4] LeiHuayang. Micro. structuraleffectofconsolidationde. formationinsaturatedsoftclay [J]. JournalofHydrauHcEn-gineering, 2004 (4) :91-95, 100. [GEOTECHNICAL ENGINEERING. Deformation of saturated soft clay consolidation effect of the microstructure [J]. Journal of Hydraulic Engineering, 2004 (4) :91-95, 100. ] (Edit Qiong) OOOOO0O0OOO such as body% O0OOn0O0OO
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