Abstract
Low-plasticity silt is known to have a potential to liquefy during earthquakes. The compressibility characteristics could change before and after a dynamic event that produces liquefaction. This research investigates the liquefaction resistance and post liquefaction reconsolidation characteristics of Mississippi River Valley (MRV) silt using laboratory cyclic triaxial compression testing. The MRV silt experienced initial liquefaction under cyclic loading, and the results are presented as cyclic stress ratio versus loading cycle curve. After cyclic loading, the liquefied specimens were reconsolidated. Permeability did not change significantly as a result of liquefaction. The reconsolidation curves are more parallel to the compression line than the recompression line in e- log σ '3 space, suggesting reconsolidation behaved more like pre-liquefaction compression. The post liquefaction compression and recompression indexes show less compressibility when compared with pre-liquefaction conditions. These characteristics of MRV silt suggest that reconsolidation after liquefaction should be a consideration during design of civil infrastructure. © 2014 American Society of Civil Engineers.
Recommended Citation
S. Wang and R. Luna, "Compressibility Characteristics of Low-plasticity Silt Before and After Liquefaction," Journal of Materials in Civil Engineering, vol. 26, no. 6, article no. 04014014, American Society of Civil Engineers, Jan 2014.
The definitive version is available at https://doi.org/10.1061/(ASCE)MT.1943-5533.0000953
Department(s)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Compressibility; Liquefaction; Low-plasticity silt; Reconsolidation
International Standard Serial Number (ISSN)
0899-1561
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Society of Civil Engineers, All rights reserved.
Publication Date
01 Jan 2014
