Effects of Characteristics of Earthquake Motion on Seismic Performance of Retaining Wall With Tire Waste-Sand Cushion: Experimental Study

Edinçliler Baykal A., Demirtaş B. S.

9. Geoteknik Sempozyumu, İstanbul, Türkiye, 22 - 24 Kasım 2023

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.5505/2023geoteknik.ss-02
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • İstanbul Gelişim Üniversitesi Adresli: Evet

Özet

Retaining walls are commonly constructed in earthquake-prone areas. The seismic performance of retaining walls can be increased by using one of the improvement techniques. Recently, lightweight materials as a “cushion layer” has been included behind the retaining wall. These materials have many advantages, including low unit weight, low bulk density, and high vibration absorption capacity. Waste tire-derived materials-sand mixtures and expanded polystyrene (EPS geofoam) are some of the lightweight materials used as cushions behind a retaining wall. This study aims to investigate the effects of earthquake characteristics on the seismic performance of the retaining wall with a tire waste-sand cushion. Tire waste-sand cushion material was used as a 10 percent tire crumb addition to the sand by weight (TC10). Shaking table experiments were carried out by constructing the 1/25 scale retaining wall model with a cushion layer in a rigid-sided soil box. It is observed that the characteristics of input motions have a significant influence on the seismic performance of the cushioned retaining wall.