Abstract
Ice sheets in rivers, lakes, lagoons in cold regions are used for a variety of purposes. They are used astracks on the ice, as roads for automobiles, as runways for airplanes, and as footholds for the constructionof structures. Knowledge of physical and dynamic characteristics of natural ice sheets and techniques toestimate the bearing capacity of natural ice sheets against vertical loads are required to safety use icesheets. In this study, the authors indicate the theoretical values of the bearing capacity and the deflectionof ice sheets under the condition of partial flooding, and compare with the experiments values.