Analytical Consideration of Installation Damage Test for Geogrid

초록

Installation damage test was performed to evaluate both damaged and undamaged geosynthetics specimens. Creep test at elevated temperature were performed at various loading levels of the maximum short term strength of the reinforcement geosynthetics. Long-term performance of membrane drawn-type, warp/knittedtype, junction bonded-type, composite-type geogrid, and strip-type geosynthetic reinforcement from their total factor of safety calculated from the composite reduction factors. Total factor of safety for the geosynthetic reinforcements was calculated from the experimental results of these reduction factors. The long-term design strength of the geosynthetic reinforcements was calculated. The reduction factor by creep deformation was determined to affect the long-term performance. Strip-type reinforcements and composite-type geogrids showed excellent long-term performance among the geosynthetic reinforcement studied.