Seismic Soil Liquefaction Mitigation Using Stone Columns for Pile-supported Wharves

Stone columns (SCs) can reduce the seismic response of pile-supported wharves in liquefiable sites. A series of parametric studies were conducted to investigate the influence of SC diameter, SC space ratio, SC permeability, and typical earthquake characteristics on the seismic response of pile-suppo...

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Bibliographic Details
Published inJournal of earthquake engineering : JEE Vol. 26; no. 16; pp. 8229 - 8256
Main Authors Tang, Liang, Liu, Shuxing, Ling, Xianzhang, Wan, Yijiang, Li, Xuewei, Cong, Shengyi, Su, Lei
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 10.12.2022
Taylor & Francis Ltd
Subjects
Earthquake damage
Earthquakes
Liquefaction
liquefiable sites
Mitigation
Permeability
pile-supported wharf
Piles
Preliminary designs
Retrofit effect
Retrofitting
Seismic activity
seismic performance
Seismic response
Soil permeability
stone column
Stone columns
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Summary:Stone columns (SCs) can reduce the seismic response of pile-supported wharves in liquefiable sites. A series of parametric studies were conducted to investigate the influence of SC diameter, SC space ratio, SC permeability, and typical earthquake characteristics on the seismic response of pile-support wharves and to assess the SC retrofit effect. The ratio of the SC space and diameter is found to play an important role in reducing the deck displacement. Based on the experimental results, the damage state of a pile support can be restricted to a potentially tolerable level using SCs in different liquefiable sites. Preliminary design suggestions are proposed for improving the seismic response of pile-supported wharves in earthquake-prone regions.
ISSN:1363-2469
1559-808X
DOI:10.1080/13632469.2021.1990163