EVALUATION OF THE FROST HEAVE RESISTANCE OF REINFORCED SOIL WALLS USING GEOCELL AND GEOGRID IN COMBINATION

Abstract

In a cold region, like Hokkaido, it is reported that concrete retaining walls and reinforced soil walls covered with concrete facing panels or steel frames can collapse by frost heaving force. In response to this, a new reinforced soil wall employing geocell, used as a flexible wall surface material, and geogrid in combination were developed, and we constructed it experimentally on the site of Kitami Institute of Technology. In this paper, details of the construction and measurement are reported; the frost heave resistance characteristics of this reinforced soil wall are verified based on various measurement results, including displacements from freezing to melting and underground temperatures. It is confirmed that no deformation that directly lead to collapse is observed.