Analysis of Factors Affecting the Rheological Properties of Muddy Flow and Their Measurement Method

Abstract

Abnormal weather phenomena debris damage has recently been increasing worldwide. As primary rheological properties, the yield stress and plastic viscosity of muddy materials affect the flow distance and velocity. Therefore, in this study, direct and indirect measurement test methods for rheological properties and factors affecting the these properties were analyzed. Measurement methods utilize rheometers, shear creep, fall cones, inclined planes, direct shear, and ring shear, with each method having its respective advantages and disadvantages. Factors that affect rheological properties are water content, liquidity index, and the size of soil particles. This study enables determination of the best test and rheological properties suitable for the selected range and selected object.