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Experimental and Theoretical Study on Interference Phenomena Between the Bearing Members of Different Geogrids in Pullout Loading Conditions
This paper deals with soil-geogrid interaction under pullout loading conditions. The main interaction mechanisms affecting the pullout resistance of geogrids embedded in compacted granular soils are the skin friction, between soil and reinforcement solid surface, and the bearing resistance, which develops against transversal elements. In particular, regarding to the bearing resistance mobilized at the soil - geogrid interface, plays an important role the interference phenomena which could occur when the spacing between transversal bearing members is lower than a fixed limit, depending on the extensions of active and passive surfaces mobilized on transversal bearing members. In order to investigate the interference phenomena, a wide CRD (constant rate of displacement) pullout test program on several extruded bi-oriented geogrids characterized by different geometry, thickness of the transverse elements and mesh size (in terms of spacing between elements) have been carried out. Based on the pullout test results a simple theoretical method to predict the peak pullout resistance, taking into account the interference phenomena, is proposed.
Experimental and Theoretical Study on Interference Phenomena Between the Bearing Members of Different Geogrids in Pullout Loading Conditions
This paper deals with soil-geogrid interaction under pullout loading conditions. The main interaction mechanisms affecting the pullout resistance of geogrids embedded in compacted granular soils are the skin friction, between soil and reinforcement solid surface, and the bearing resistance, which develops against transversal elements. In particular, regarding to the bearing resistance mobilized at the soil - geogrid interface, plays an important role the interference phenomena which could occur when the spacing between transversal bearing members is lower than a fixed limit, depending on the extensions of active and passive surfaces mobilized on transversal bearing members. In order to investigate the interference phenomena, a wide CRD (constant rate of displacement) pullout test program on several extruded bi-oriented geogrids characterized by different geometry, thickness of the transverse elements and mesh size (in terms of spacing between elements) have been carried out. Based on the pullout test results a simple theoretical method to predict the peak pullout resistance, taking into account the interference phenomena, is proposed.
Experimental and Theoretical Study on Interference Phenomena Between the Bearing Members of Different Geogrids in Pullout Loading Conditions
Calvarano, L.S. (author) / Cardile, G. (author) / Gioffre, D. (author) / Moraci, N. (author)
2013
7 Seiten, Bilder, Tabellen, Quellen
Conference paper
Storage medium
English
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