TWO-DIMENSIONAL ORIENTATION OF FINE QUARTZ GRAIN SUBJECTED TO DIRECT SHEAR

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概要

• 論文の詳細を見る

• The degree of grain orientation given by the magnitude of vector strength by visual measurements is compared with that of the birefringence ratio by an indirect one. To link both expressions, a concentration degree of distribution is introduced on the assumption that the grain arrangement obeys the circular normal distribution. The longitudinal section illustrating the shear-induced fabrics is put under a polarizing microscope, and quartz grains in it are measured by the trigonometric treatment. The grain orientation brought forth during shearing is evaluated as a random orientation, because grains rotate as the horizontal displacement increases. However, it is also shown that the parallel grain arrangement exists in a certain direction such as the slip line and its conjugate at the top of crack occurring during shearing.

• 社団法人地盤工学会の論文
• 1993-03-15

著者

• 三輪 晃一

  Department Of Environmental Sciences And Technology Kagoshima University

• 三輪 晃一

  Water Control and Reclamation Engineering, Faculty of Agriculture, Kagoshima University

関連論文

• DEFORMATION BEHAVIOR OF "SHIRASU" AND ITS PREDICTION BY THE SUBLOADING SURFACE MODEL
• TWO-DIMENSIONAL ORIENTATION OF FINE QUARTZ GRAIN SUBJECTED TO DIRECT SHEAR
• 偏光顕微鏡下の土粒子のモデル配列と透過光強度との関係について

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