Earthquake-Induced Soil Liquefaction: From Small to Large Scale

A special issue of Geosciences (ISSN 2076-3263). This special issue belongs to the section "Natural Hazards".

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 1782

Special Issue Editors


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Guest Editor
Department of Civil, Architectural and Environmental Engineering, University of Napoli Federico II, 80125 Naples, Italy
Interests: geotechnical engineering; laboratory tests; earthquake induced soil liquefaction; gassy sand behaviour; countermeasures against liquefaction; field trial

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Guest Editor
Department of Civil, Energy, Environmental and Material Engineering (DICEAM), Mediterranea University, Via Zehender (Feo Vito), 89122 Reggio Calabria, Italy
Interests: geotechnical engineering; characterisation of soils by dynamic and cyclic tests; liquefaction assessment risk of soils under level and sloping ground;earthquake-induced large deformations and failure of non-plastic silty sands and crushable sands; modelling of earthquake-induced excess pore water pressures; numerical modelling of seismic site response; theoretical approach to predict undrained cyclic and monotonic behaviour of non-plastic silty sands; sustainable ground improvement techniques

Special Issue Information

Dear Colleagues,

Earthquakes are one of the most destructive natural phenomena, and they have affected several areas of the world. These ground motions are dangerous not only because of inertial and kinematic stresses, which are directly enforced on the structure through shaking, but also because of possible soil liquefaction phenomena. Seismic shaking of a sufficient strength and duration may transform saturated, loose, sandy soils into a suspension of soil particles and water that behave in a manner similar to a viscous fluid. This phenomenon is called liquefaction. The excessive deformation of a ground surface can cause the loss of human lives and serious damage to the built environment. Consequently, interest in liquefaction and liquefaction-prone areas is increasing, and thus research should be conducted to improve the basic knowledge on earthquake-induced liquefaction.

Research findings can also be useful to risk management actors, so they can make decisions for civil protection purposes, or more consciously allocate funds.

We encourage the submission of highly-quality literature reviews, research papers, and methodologically relevant case studies.  The topics of interest include, but are not limited to, the following:

  • Laboratory tests and physical models on liquefiable soils;
  • Prediction of excess pore-water pressure;
  • Liquefaction in intermediate soils;
  • Countermeasures against liquefaction;
  • Numerical models for liquefiable soils;
  • Post-liquefaction behaviour of sands;
  • Mapping on liquefaction hazards;
  • Soil structure interaction with liquefiable soils (i.e., settlements of shallow foundations; uplift of pipeline).

Dr. Lucia Mele
Dr. Giuseppe Tomasello
Guest Editors

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Keywords

  • earthquake-induced soil liquefaction
  • liquefaction hazard
  • laboratory tests
  • countermeasures against liquefaction
  • soil structure interaction with liquefiable soils
  • post-liquefaction behavior
  • field trial in liquefiable soils
  • case studies
  • pore pressure generation models
  • liquefaction triggering

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Published Papers (1 paper)

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Review

32 pages, 7669 KiB  
Review
Induced Partial Saturation: From Mechanical Principles to Engineering Design of an Innovative and Eco-Friendly Countermeasure against Earthquake-Induced Soil Liquefaction
by Lucia Mele, Stefania Lirer and Alessandro Flora
Geosciences 2024, 14(6), 140; https://doi.org/10.3390/geosciences14060140 - 23 May 2024
Cited by 1 | Viewed by 1171
Abstract
Earthquake-induced soil liquefaction is a catastrophic phenomenon that can damage existing building foundations and other structures, resulting in significant economic losses. Traditional mitigation techniques against liquefaction present critical aspects, such as high construction costs, impact on surrounding infrastructure and effects on the surrounding [...] Read more.
Earthquake-induced soil liquefaction is a catastrophic phenomenon that can damage existing building foundations and other structures, resulting in significant economic losses. Traditional mitigation techniques against liquefaction present critical aspects, such as high construction costs, impact on surrounding infrastructure and effects on the surrounding environment. Therefore, research is ongoing in order to develop new approaches and technologies suitable to mitigate liquefaction risk. Among the innovative countermeasures against liquefaction, Induced Partial Saturation (IPS) is considered one of the most promising technologies. It consists of introducing gas/air bubbles into the pore water of sandy soils in order to increase the compressibility of the fluid phase and then enhance liquefaction resistance. IPS is economical, eco-friendly and suitable for urbanised areas, where the need to reduce the risk of liquefaction must be addressed, taking into account the integrity of existing buildings. However, IPS is still far from being a routine technology since more aspects should be better understood. The main aim of this review is to raise some important questions and encourage further research and discussions on this topic. The review first analyses and discusses the effects of air/gas bubbles on the cyclic behaviour of sandy soils, focusing on the soil volume element scale and then extending the considerations to the real scale. The use of useful design charts is also described. Moreover, a section will be devoted to the effect of IPS under shallow foundations. The readers will fully understand the research trend of IPS liquefaction mitigation and will be encouraged to further explore new practical aspects to overcome the application difficulties and contribute to spreading the use of this technology. Full article
(This article belongs to the Special Issue Earthquake-Induced Soil Liquefaction: From Small to Large Scale)
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