Abstract
This paper describes a two-dimensional measurement method for shear stress distribution of a wheel on loose soil. The stress measurement device was improved to enable detect the shear stress distribution of a wheel. Normal stress distribution and circumferential shear stress distribution and lateral shear stress distribution were measured using this device. By combining the two-directional shear stress distribution, the directions of shear stress distribution were estimated. With this, soil flow direction was also estimated. By calculating vertical components of normal stress and shear stress, measurement validity was evaluated. In addition, the classical shear stress model and measured data were compared. As a result, both were accurately estimated, and a significant difference was not found under the low slippage conditions.
