Effect of Tire-Shred on the Behavior of Fine Sandy Soil Reinforced with Various Configurations of Geogrid Wraparound Layers
摘要
This research aimed to investigate the potential use of tire shreds encapsulated in wraparound geogrid sheets in improving the behavior of fine sandy beds. A series of tests were performed on tire-shred-sand mixtures reinforced with geogrid layers under static loading. The experiment used planar geogrids and geogrid wraparound layers to reinforce tire-shred sand. Various parameters were considered, such as the embedment depth of sand-tire-shred mixtures reinforced with wraparound geogrid sheets or planar mixtures, the length of the wrapping part and overlaps, the vertical spacing between reinforcement geogrid sheets, and the width of the sand-tire-shred mixture with geogrid sheets. The results demonstrated that adding tire-shreds to sandy soil beds reinforced with geogrid wraparound sheets significantly increased the load-bearing capacity at different settlements. The bearing capacity ratio was more significant than 4.5 and 3.2 for the ultimate relative settlement in the wraparound and planar geogrid layers, respectively. The behavior of a mixture of tire-geogrid reinforced sand was superior to that of soil reinforced with geogrids without the inclusion of tire-shred particles. In addition, the use of a single layer of wraparound geogrid sheet with a tire-shred mixture significantly affects the use of multilayers of planar geogrid arrangements.