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http://dx.doi.org/10.7843/kgs.2017.33.1.79

Relative Density and Stress-Dependent Failure Criteria of Marine Silty Sand Subjected to Cyclic Loading  

Ko, Min Jae (Dept. of Civil and Environmental Engrg., Pusan National Univ.)
Son, Su Won (Dept. of Civil and Environmental Engrg., Pusan National Univ.)
Kim, Jin Man (Dept. of Civil and Environmental Engrg., Pusan National Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.33, no.1, 2017 , pp. 79-91 More about this Journal
Abstract
An experimental study has been conducted by using the Cyclic Direct Simple Shear apparatus to evaluate the influence of average and cyclic shear stresses on the undrained shear failure behavior of marine silty sand considering various relative densities. The obtained results show that despite using different relative densities, similar trends were gained in the cyclic shear deformation. Moreover, the cyclic shear deformation is affected mainly by the average and cyclic shear stresses. The number of cyclic loads for failure is significantly affected by the cyclic shear stress ratio and relative density, and is less affected by the average shear stress ratio. The proposed three-dimensional stress-dependent failure contour can be used effectively to assess the soil shear strength considering various relative densities in the design of foundation used for offshore structures.
Keywords
Cyclic loading; Relative density; Cyclic Stress Ratio (CSR); Average Stress Ratio (ASR); Three-dimensional failure contour;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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