EVALUATION OF REINFORCED SOIL WALLS USING GEOGRID AND GEOCELL BY FULL-SCALE SLOPE-ROCKFALL TESTS

Abstract

Full-scale slope-rockfall tests were carried out in order to confirm the rockfall protection performance of soil-walls reinforced with two alternating kinds of geogrids. Moreover, cushioning layers made of geocells filled with relatively small gravel were arranged on the upstream side of reinforced soil-walls to buffer and disperse the impact of rockfalls. The reinforced soil-walls were demonstrated to have excellent performance as rockfall protection structures. Advanced techniques to measure the impact force of rockfalls rolling down actual slopes and design essentials of reinforced soil-walls were also developed.