Influence of Index Properties on the Cyclic Failure of Fine-Grained Soils
The purpose of this study is to develop an easy procedure to diagnose the cyclic behavior of fine-grained soils, leading to liquefaction.There are approaches to this problem with reference to liquid limit (w L ), plasticity index (PI), clay content (C%), in-situ water content (w n ), average grain size (D 50 ), and liquidity index (I L ). Previous research has indicated that fine-grained soils defined as “sand-like” are prone to liquefaction. The transition zone from sand-like to clay-like behavior can be determined with the help of dynamic testing, reaching a clay-like zone where cyclic failure is practically impossible.This paper presents the findings of dynamic triaxial shear testing (CTX), where excess pore water pressures and axial strains are evaluated compared to the physical properties to reach the threshold for cyclic failure. Samples of undisturbed soil procured from different locations of the city of Adapazarı, Turkey, were subjected to dynamic triaxial testing. The results were interpreted in the light of the physical properties to arrive at a judgment of cyclic failure.The main finding of this study is that samples reaching double strain amplitude (DSA) of less than 5 percent during CTX contain no sand and have a clay content of 20% or more, in addition to developing the relationship between sensitivity to cyclic loading and physical properties
Year of publication: |
[2022]
|
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Authors: | Bol, Ertan ; Özocak, Aşkın ; Sert, Sedat |
Publisher: |
[S.l.] : SSRN |
Subject: | Konjunktur | Business cycle | Theorie | Theory |
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