Abstract
Previous research has shown that shredded tires are a beneficial replacement for conventional sand backfills in retaining walls as they reduce both material costs and structural wall size requirements. To further investigate the suitability of tire shreds as a backfill material, this study evaluates the performance of retaining walls backfilled with tire shreds under dynamic loading conditions. Projected lateral earth pressures and bending moments and shear forces on the structure are evaluated for both shredded tire backfill and conventional backfill sand using a geotechnical engineering finite element software, PLAXIS. Input information for material properties of soil, sand backfill, and shredded tires is determined from laboratory testing. Through this comprehensive dynamic simulation, the safety and performance of shredded tires is confirmed for structures under earthquake loading. This demonstrates the viability of shredded tires as an economical replacement for conventional sand in the construction of retaining walls in seismic zones.
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