Akademik Veri Yönetim Sistemi
7th International Conference on Earthquake Engineering and Seismology (7ICEES), Antalya, Türkiye, 6 - 10 Kasım 2023
Earth-retaining structures are widely used in the man-made environment and have been constructed broadly in seismically active regions. Earthquakes can cause a lot of hazards to the retaining walls. In order to mitigate earthquake hazards, cost-effective solutions can be applied to the retaining walls. The use of lightweight materials behind the wall as a compressible layer called a “cushion layer” is one of the methods to improve the seismic performance of the retaining walls. These materials have advantageous characteristics, such as low unit weight, low bulk density, and high vibration absorption capacity. Some lightweight materials, such as shredded and chipped tire waste-sand mixtures and expanded polystyrene (EPS geofoam), can be used as a cushion. The objective of this study is to investigate the effects of tire waste-sand cushion on the seismic performance of retaining walls by performing a series of shaking table tests. The experiments were carried out using a 1/25 scaled retaining wall model with or without a cushion layer in the rigid-sided soil box. The tire waste-sand cushion under two different earthquake motions is evaluated to obtain the effectiveness of the cushion compared with the results without cushion.