Affiliation:
1. Pontificia Universidad Católica del Ecuador (PUCE)
2. University of Ferrara
Abstract
Abstract
This study presents an analysis of the influence of geogrid distribution on the bearing capacity of granular soils. For this purpose, the bearing capacity is compared based on 3 arrangements, uniform, trapezoidal, and inverted trapezoidal, with 2 types of geogrids, biaxial and multiaxial, under the application of an axial load. The tests performed were analyzed in three forms in which the trapezoidal distribution was the best arrangement for biaxial and multiaxial geogrids. The first analysis considers the peaks for each stress-strain curve, the trapezoidal distribution increases the bearing capacity by 36% and 33% for biaxial and multiaxial geogrids, respectively. The second analysis considers an s/B ratio of 10%, which had an average increment of 30.5% for the two types of geogrids. The third analysis considers a 20% of s/B ratio, which showed a 56% and 81% of BCR increase for biaxial and multiaxial geogrids respectively. From an economical and environmental analysis, the trapezoidal distribution saves 7% of material compared to the traditional uniform distribution. The comparison between physical and numerical models with theoretical equations is presented.
Publisher
Research Square Platform LLC
Reference35 articles.
1. Model geogrids and 3D printing;Stathas D;Geotextiles and Geomembranes,2017
2. A. Hedge, “NUMERICAL SIMULATION OF GEOTEXTILE-SAND INTERFACE USING BOX SHEAR TEST AND PULL-OUT TEST: A COMPARISON,” Trichy: Proceedings of Sixth Indian Young Geotechnical Engineers Conference (6IYGEC), Mar. 2017, pp. 514–519.
3. R. Baadiga, U. Balunaini, and S. Saride, “Influence of Geogrid Aperture Size on the Behavior of Mechanically Stabilized Pavements,” in Airfield and Highway Pavements 2021, Reston, VA: American Society of Civil Engineers, Jun. 2021, pp. 271–282. doi: 10.1061/9780784483510.025.
4. Influence of tensile strength of geogrid and subgrade modulus on layer coefficients of granular bases;Baadiga R;Transportation Geotechnics,2021
5. R. Baadiga, U. Balunaini, and S. Saride, “PERFORMANCE OF REINFORCED BASE COURSES OF FLEXIBLE PAVEMENTS OVERLYING SOFT SUBGRADES: INSIGHTS FROM LARGE-SCALE MODEL EXPERIMENTS,” International Journal of GEOMATE, vol. 22, no. 89, pp. 80–86, 2022, doi: 10.21660/2022.89.gxi361.