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

2021 ◽  
pp. 1-28
Author(s):  
Liang Tang ◽  
Shuxing Liu ◽  
Xianzhang Ling ◽  
Yijiang Wan ◽  
Xuewei Li ◽  
...  
Keyword(s):  
Soil Liquefaction ◽  
Stone Columns ◽  
Liquefaction Mitigation

Mitigation of Liquefaction Hazard Using Granular Piles

2011 ◽  
Vol 2 (1) ◽  
pp. 44-66 ◽  
Author(s):  
A. Murali Krishna
Keyword(s):  
Ground Improvement ◽  
Stone Columns ◽  
Loose Sand ◽  
Short Discussion ◽  
Remedial Measure ◽  
Design Concepts ◽  
Liquefaction Mitigation ◽  
Liquefaction Hazard ◽  
Granular Piles ◽  
Surrounding Soil

In this paper, ground improvement techniques are used to mitigate liquefaction hazards. Granular piles are the preferred alternative due to several advantages. Granular piles improve the ground by reinforcing and adding density to the surrounding soil apart from providing drainage. Different mechanisms operate in the function of stone columns/granular piles in liquefaction mitigation, including Drainage, Storage, Dilation, Densification, and Reinforcement. This paper presents an overview of the use of granular piles as a liquefaction remedial measure for sand deposits. A brief description on liquefaction and the associated features is presented. A short discussion on various ground improvement methods available for liquefaction mitigation is discussed in light of the importance of granular piles. Different installation methods and design concepts for granular piles are presented. Various mechanisms of granular piles in mitigating the liquefaction potential of loose sand deposits are discussed and quantified in detail proving their effectiveness in hazard mitigation.

Liquefaction mitigation in silty soils using composite stone columns and dynamic compaction

2004 ◽  
Vol 3 (1) ◽  
pp. 39-50 ◽  
Author(s):  
T. Shenthan ◽  
R. Nashed ◽  
S. Thevanayagam ◽  
G. R. Martin
Keyword(s):  
Dynamic Compaction ◽  
Stone Columns ◽  
Liquefaction Mitigation ◽  
Silty Soils

Numerical study on ground improvement for liquefaction mitigation using stone columns encased with geosynthetics

2015 ◽  
Vol 43 (2) ◽  
pp. 190-195 ◽  
Author(s):  
Liang Tang ◽  
Shengyi Cong ◽  
Xianzhang Ling ◽  
Jinchi Lu ◽  
Ahmed Elgamal
Keyword(s):  
Numerical Study ◽  
Ground Improvement ◽  
Stone Columns ◽  
Liquefaction Mitigation

A Study of Liquefaction Resistance of Composite Foundation of CFG and Stone Columns

2013 ◽  
Vol 368-370 ◽  
pp. 897-900
Author(s):  
Chun Mei Zhang ◽  
Chao Huang ◽  
Guan Peng Zhi
Keyword(s):  
Earthquake Engineering ◽  
Soil Liquefaction ◽  
Composite Foundation ◽  
Stone Columns ◽  
Liquefaction Resistance ◽  
Detailed Review ◽  
Geotechnical Earthquake Engineering ◽  
Saturated Sands

Liquefaction of saturated sands remains an important topic in Geotechnical earthquake engineering. Amongst various review measures available,the use of CFG Column and stone columns Composite foundation to prevent liquefaction can achieves good results. In this paper, a detailed review on effectiveness of densification, drainage and reinforcement of CFG column and stone columns Composite foundation for the resistance of soil liquefaction during earthquakes is presented.

Mitigation of Liquefaction Hazard Using Granular Piles

2018 ◽  
pp. 86-116
Author(s):  
A. Murali Krishna
Keyword(s):  
Ground Improvement ◽  
Stone Columns ◽  
Loose Sand ◽  
Short Discussion ◽  
Liquefaction Potential ◽  
Design Concepts ◽  
Liquefaction Mitigation ◽  
Liquefaction Hazard ◽  
The World ◽  
Granular Piles

Ground improvement techniques are employed to mitigate liquefaction hazards. Granular piles are the most widely preferred alternative all over the world, due to several advantages associated with them. Different mechanisms operate in the function of stone columns/granular piles in liquefaction mitigation like drainage, storage, dilation, densification, and reinforcement. This chapter presents an overview of the use of granular piles as a liquefaction remedial measure for sand deposits. A brief description on the phenomenon of liquefaction and the associated features has been presented. A short discussion on various ground improvement methods available for liquefaction mitigation is presented in light of importance of granular piles. Different installation methods and design concepts for granular piles are presented. Various mechanisms of granular piles in mitigating the liquefaction potential of loose sand deposits are discussed and quantified in detail proving their effectiveness in hazard mitigation.

Seismic Soil Liquefaction Mitigation for Waterfront Slopes

2011 ◽  
Vol 1 (2) ◽  
pp. 1-13
Author(s):  
Ahmad Jafari Mehrabadi ◽  
Radu Popescu
Keyword(s):  
Soil Liquefaction ◽  
Liquefaction Mitigation

Mitigation of Soil Liquefaction Using Stone Columns: An Experimental Investigation

2015 ◽  
Vol 34 (3) ◽  
pp. 244-251 ◽  
Author(s):  
Chunxia Huang ◽  
Zhilong Sui ◽  
Lei Wang ◽  
Kaifu Liu
Keyword(s):  
Experimental Investigation ◽  
Soil Liquefaction ◽  
Stone Columns

scholarly journals Assessment of Stone Columns as a Mitigation Technique of Liquefaction-Induced Effects during Italian Earthquakes (May 2012)

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Davide Forcellini ◽  
Angelo Marcello Tarantino
Keyword(s):  
Social Life ◽  
Three Dimensional ◽  
Lateral Spreading ◽  
Soil Liquefaction ◽  
Stone Columns ◽  
Stone Column ◽  
Soil Response ◽  
The Stability ◽  
Italian Context ◽  
Mitigation Technique

Soil liquefaction has been observed worldwide during recent major earthquakes with induced effects responsible for much of the damage, disruption of function, and considerable replacement expenses for structures. The phenomenon has not been documented in recent time with such damage in Italian context before the recent Emilia-Romagna Earthquake (May 2012). The main lateral spreading and vertical deformations affected the stability of many buildings and impacted social life inducing valuable lessons on liquefaction risk assessment and remediation. This paper aims first of all to reproduce soil response to liquefaction-induced lateral effects and thus to evaluate stone column mitigation technique effectiveness by gradually increasing the extension of remediation, in order to achieve a satisfactory lower level of permanent deformations. The study is based on the use of a FE computational interface able to analyse the earthquake-induced three-dimensional pore pressure generation adopting one of the most credited nonlinear theories in order to assess realistically the displacements connected to lateral spreading.

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