Akademik Veri Yönetim Sistemi
Geo-Congress 2026: Geosynthetics, Pavements, and Soil Improvement, Utah, Amerika Birleşik Devletleri, 9 - 12 Mart 2026, ss.113-123, (Tam Metin Bildiri)
This study aims to address a key challenge in geosynthetic engineering by ensuring that scaled geocells are produced and utilized in accordance with dimensional analysis principles and similarity laws, thereby accurately replicating the behavior of prototype geocells. Utilizing a commercially available 3D printer, model geocells were fabricated to closely represent the geometric and material properties of prototype high-density polyethylene geocells. A comprehensive examination was conducted on the tensile strength/modulus of 3D-printed geocells using different filaments and infill rates. The findings revealed that geocells printed with thermoplastic polyurethane filaments, particularly with a 5% infill rate, closely resembled the prototype geocells in terms of the tensile modulus at specific elongation levels, showcasing a promising avenue for 1:3 scaled model tests. The successful creation of geocell layers using the elastic filaments was achieved through careful calibration of printing settings, including first-layer precision, bed leveling, and controlled printing speed. The effects of scaling on strip footings reinforced by both HDPE-fabricated and 3D-printed geocells were also evaluated in small-scale laboratory tests, focusing on their pressure-settlement response and improvement factors. Utilizing 3D-printed geocell layers in model tests addresses the challenge of employing unscaled prototype geocells.