Compared with traditional geogrids, 3D-printed geogrid technology can be printed using biointerpretive plastics to achieve waste utilization, which is environmentally friendly and can also be personalized. Through indoor pullout tests and image analysis technology, the influence of different mesh shapes, reinforcement node heights, and node arrangements on the pullout performance of 3D-printed geogrids was studied, and the shear zones of different geogrid-soil interfaces and interfacial soil particle transport laws were analyzed. The results show that the maximum pullout force and range of the shear zone of ageogrid-soil interface increased with the node height. When the node heights were the same, the maximum pullout force and shear zone under the bilateral node arrangement were greater than those under the unilateral node arrangement. The maximum pullout forces of geogrids with different mesh shapes were in descending order: quadaxial, triaxial, and biaxial geogrids. However, the order for the shear zones was the opposite. This study provides a theoretical basis for the structural optimization of 3D-printed geogrids.
GAO Junli
,
ZHU Guoliang
. Experimental study on pullout characteristics of a 3D-printed geogrid-transparent soil interface[J]. Journal of Shanghai University, 2026
, 32(4)
: 741
-752
.
DOI: 10.12066/j.issn.1007-2861.2557
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