Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5892
Title: Influence of consolidation properties on the cyclic re-liquefaction potential of sands
Authors: Ecemiş, Nurhan
Demirci, Hasan Emre
Karaman, Mustafa
Ecemiş, Nurhan
Demirci, Hasan Emre
Karaman, Mustafa
Izmir Institute of Technology. Civil Engineering
Keywords: Clean sand
Coefficient of consolidation
Liquefaction resistance
Relative density
Shake table test
Soil liquefaction
Issue Date: 1-Jun-2015
Publisher: Springer Verlag
Source: Ecemiş, N., Demirci, H.E., and Karaman, M. (2015). Influence of consolidation properties on the cyclic re-liquefaction potential of sands. Bulletin of Earthquake Engineering, 13(6), 1655-1673. doi:10.1007/s10518-014-9677-y
Abstract: The relative density can be used as the main indicator to assess the liquefaction resistance of clean sands. As relative density of the sand deposit increases significantly following the initial liquefaction, one should expect that the soil can improve its liquefaction resistance. However, earthquake records indicate that densified sand can be liquefied again (re-liquefied) at smaller cycles by the similar seismic loadings. This work aims to clarify the counterintuitive finding that, after the first liquefaction, the resulting significant increase in relative density (induced by settlements and variation of the water level) do not necessarily imply an increase in the number of loading cycles for re-liquefaction. In this paper, we present a series of experimental results concerning the cyclic liquefaction and the following re-liquefaction of clean sand deposits. The experimental setup is performed by a shaking table, transmitting one-degree of freedom transversal motion to the soil within the 1.5 m high laminar shear box. At four different seismic demands, the input excitation was imposed three times to examine the influence of the initial distributions of the relative density and the consolidation characteristics on the liquefaction potential of the sand. The re-liquefaction cycles of the sand, which previously experienced liquefaction under the same seismic loadings, show that post-liquefaction reconsolidation of the sand deposits affects the re-liquefaction resistance.
URI: https://doi.org/10.1007/s10518-014-9677-y
http://hdl.handle.net/11147/5892
ISSN: 1570-761X
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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