AN EXPERIMENTAL STUDY ON THE EFFECT OF REINFORCING MATERIALS FOR THE STABILIZATION OF SOFT GROUND

摘要

The improvement of a bearing capacity with Geotextile, Geogrid, Bamboo-net is a common practice to obtain a trafficability of construction vehicles for the soft ground in KOREA. Nevertheless, the geotechnical behaviour,design method, and codes for surface remediation have not been well researched. In order to understand the behavioral characteristics of reinforced geosynthetics, Past examples for surface remediation were investigated and bearing capacity tests have been performed on soft-modeled ground with geosynthetic system. From the past examples for the remediation, it was found that Bamboon-net was commonly used for reinforced material where τ< 0.1 tf/m2 due to its flexural stiffness. For the bearing capacity tests, two types of clayey samples were used in this study, one obtained from Kwangyang and the other from Yonjongdo. Test results indicated that the bearing capacity of reinforced Kwangyang clay (c=0.1 tf/m2) was approximately 125% higher than that of reinforced Yongjondo clay(c=0.17 tf/m2).Correspondingly, it is concluded that the bearing capacity of reinforced ground is related to the shear strength property of ground without reinforcement.