Abstract
We present methods of reinforcing the aggregate base course confined by the cubic structure of geotextiles, in order to reduce the settlement of aggregate by improving the rigidity of aggregate base course. An aggregate base course using geotextiles has conventionally been reinforced by placing the geotextiles between the subgrade soil and aggregate layer. We compared the placing method with the cubic structure method experimentally. The settlement occurring at the center of the loaded portion of the aggregate surface confined by the cubic structure of geotextiIes is smaller than that of the conventional methods. Parameter ut/us, expresses the bearing effect of the base course, specifically the rigidity of the aggregate layer. The result of the bearing effect of the base course is obtained in the case of combining the conventional method with the cubic structure method.
