Couple Effect of Loading Frequency and Uniformity Coefficient on the Liquefaction Resistance of Sand

Dong Kiem Lam Tran, Seung Wook Woo, Seong Dong Lee, Nhut Nhut Nguyen, Sung Sik Park

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The uniformity coefficient (Cu) of sand and the cyclic loading frequency (f) is unclear in affecting soil's cyclic undrained behavior. This note presents experimental research on the combined effect of f and Cu on the liquefaction resistance of the sand. A series of constant-volume, stress-controlled, cyclic direct simple shear tests (CDSS) were performed on silica sands mixed with different particle proportions to make both poorly (SP) and well-graded (SW) samples. SP and SW samples are deposited in a medium-density dry state, consolidated to vertical stress of 100 kPa, and cyclically loaded under a cyclic stress ratio of 0.1 with various loading frequency (f = 0.03, 0.05, 0.1, 0.2, and 0.5 Hz). In SP sand, the number of cycles to cause liquefaction (Ncyc) remains unchanged when the load frequency rises from 0.03 Hz to 0.1 Hz, and increases when the load frequency rises from 0.1 Hz to 0.5 Hz. It can be stated that SP sand's liquefaction resistance is affected by the high loading frequency. On the contrary, the effect of loading frequency on the Ncyc of SW sand is negligible. Furthermore, SP sand is more resistant to liquefaction than SW sand. According to this study, Cu and f should be included in the sand's liquefaction resistance analysis.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Conference on Sustainable Civil Engineering and Architecture - ICSCEA 2023
EditorsJ. N. Reddy, Chien Ming Wang, Van Hai Luong, Anh Tuan Le
PublisherSpringer Science and Business Media Deutschland GmbH
Pages1085-1091
Number of pages7
ISBN (Print)9789819974337
DOIs
StatePublished - 2024
Event3rd International Conference on Sustainable Civil Engineering and Architecture, ICSCEA 2023 - Da Nang City, Viet Nam
Duration: 19 Jul 202321 Jul 2023

Publication series

NameLecture Notes in Civil Engineering
Volume442
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference3rd International Conference on Sustainable Civil Engineering and Architecture, ICSCEA 2023
Country/TerritoryViet Nam
CityDa Nang City
Period19/07/2321/07/23

Keywords

  • Liquefaction Resistance
  • Loading Frequency
  • Poorly graded sand
  • Uniformity Coefficient
  • Well-graded sand

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