@inproceedings{872e33700570429f9960a992a7f81e5d,
title = "Couple Effect of Loading Frequency and Uniformity Coefficient on the Liquefaction Resistance of Sand",
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.",
keywords = "Liquefaction Resistance, Loading Frequency, Poorly graded sand, Uniformity Coefficient, Well-graded sand",
author = "Tran, {Dong Kiem Lam} and Woo, {Seung Wook} and Lee, {Seong Dong} and Nguyen, {Nhut Nhut} and Park, {Sung Sik}",
note = "Publisher Copyright: {\textcopyright} 2024, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.; 3rd International Conference on Sustainable Civil Engineering and Architecture, ICSCEA 2023 ; Conference date: 19-07-2023 Through 21-07-2023",
year = "2024",
doi = "10.1007/978-981-99-7434-4_114",
language = "English",
isbn = "9789819974337",
series = "Lecture Notes in Civil Engineering",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "1085--1091",
editor = "Reddy, {J. N.} and Wang, {Chien Ming} and Luong, {Van Hai} and Le, {Anh Tuan}",
booktitle = "Proceedings of the 3rd International Conference on Sustainable Civil Engineering and Architecture - ICSCEA 2023",
address = "Germany",
}