The Qualitative Research of Macro-Micro Association of Sand Under the Monotonic Loading

摘要

By analyzing the association relationships between sand particle mechanics parameters and microscopic characteristics, this paper qualitative establishes the association table including physical and mechanical parameters such as the water content w, void ratio e and shear stress, and micro-parameters of sand particle such as particle number n, long axis L, short axis B, x, y coordinate of the centroid of particle, y-axis projection length, degree of eccentricity and orientation arrangement. Then the macro-micro relationship table of sand was established. The macro-micro relationship table of sand indicated that three micro-parameters of sand particle including particle number n, long axis L, short axis B have closely relationship with the water content w, void ratio e and shear stress. And the qualitative research between the sand particle mechanics and microscopic characteristics laid the foundation for the macro-micro association research.