Study on factors affecting pull-out resistance of newly-developed geocell and geogrid embedded in gravelly soils

Abstract

In order to study whether newly-developed geocell can be worked as tensile reinforcement in retaining walls, pull-out tests were performed on geogrid and newly-developed geocell (square shaped) embedded in three different compacted gravelly soils. As a result, different pull-out behaviors were found due to their geometry which can be explained by different pull-out mechanisms. In the case of geogrid, the peak pullout resistance increases slightly with an increase in particle size. On the other hand, in the case of newly-typed geocell, the peak pullout resistance increases significantly with an increase in particle size. Newly-developed geocell can confine larger particles and provide corresponding higher peak pull-out resistance.