Abstract
In construction of a road on the soft ground, the subgrade in general is constructed using a replacement method or improvement works. However, they must be considered from the standpoint of environmental influences such as generation of surplus soils resulting from the replacement or soilidification agents to be used for improvement works. The construction of a road pavement on the soft ground using geosynthetics whose raw material being synthetic high-molecular weight materials have already been established in foreign countries. In Japan, it is also confirmed that geosynthetics is being employed as a temporary treatment in the road construction stage. In this study, we have accumulated actual construction works and analized them for the purpose to clarify the scope of so that a foundation for practical design and construction method can be established finally. This report describes the status of actual construction works and conditions after the construction in the subject of an experimental construction.
