Cyclic response of saturated silts


Saglam S., BAKIR B. S.

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, pp.164-175, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2014
  • Doi Number: 10.1016/j.soildyn.2014.02.011
  • Title of Journal : SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
  • Page Numbers: pp.164-175
  • Keywords: Cyclic triaxial test, Liquefaction, Silt, LIQUEFACTION SUSCEPTIBILITY, CLAYS, BEHAVIOR, FAILURE, TURKEY, SOILS, SHEAR, SAND

Abstract

Softening and strength loss of sands with increasing excess pore water pressure under repeated loads is well-known. However, extensive damage to the built environment also occurs at the sites underlain by fine grained soils during seismic shaking. The primary objective of this study is to investigate the factors affecting cyclic behavior of saturated low-plastic silt through laboratory testing. For this purpose, an extensive laboratory testing program including conventional monotonic and cyclic triaxial tests was carried out over reconstituted silt samples. The effects of the inherent soil properties and the effects of loading characteristics on the cyclic response of saturated low-plastic reconstituted silt samples were examined separately. Based on the test results, a model was introduced to estimate the effect of initial shear stress on the cyclic response. Besides, liquefaction susceptibility of the samples was examined via current liquefaction susceptibility criteria. (C) 2014 Elsevier Ltd. All rights reserved.