Undrained Dynamic Response of Partially Saturated Sands Tested in a DSS-C Device

Eseller-Bayat, E. Ece; Gulen, Derya Burcu

doi:10.1061/(asce)gt.1943-5606.0002361

Cited by 14 publications

(4 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Generally, cyclic triaxial or simple shear tests are performed to investigate the liquefaction strength or the accumulation of excess pore water pressure during undrained cyclic phase [27,[29][30][31][32][33][34]. Shaking table [35][36][37][38][39] or centrifuge [40][41][42][43][44] tests should be preferred when interactions with structures (i.e., shallow foundation and, pipelines) are considered.…”

Section: Laboratory Tests On Partially Saturated Sandy Soilsmentioning

confidence: 99%

“…Using the energetic approach, the CRR ns curves can be obtained (Figure 24a,b) by summing ∆CRR (Equation ( 28)) to Equations ( 29) and (30) for the desired degrees of saturation (in Figure 24a,b equal to 98, 95, 93, 90, 85 and 80%) and void ratio (it is possible to calculate D r as a function of q c1Ncs and (N 1 ) 60cs ; see, for instance, Boulanger and Idriss [93]).…”

Section: Effectiveness Of Ips and Design Chartsmentioning

confidence: 99%

“…Using the energetic approach, the CRRns curves can be obtained (Figure 24a,b) by summing ΔCRR (Equation ( 28)) to Equations ( 29) and (30) for the desired degrees of saturation (in Figure 24a,b equal to 98, 95, 93, 90, 85 and 80%) and void ratio (it is possible to calculate Dr as a function of qc1Ncs and (N1)60cs; see, for instance, Boulanger and Idriss [93]). As discussed above, the upward translation of the saturated curves is possible because, for high values of Sr, there is no mechanical effect of suction on the soil skeleton (i.e., qc1Ncs and (N1)60cs remain constant), even though air and water pressure are slightly different.…”

Section: Effectiveness Of Ips and Design Chartsmentioning

confidence: 99%

See 2 more Smart Citations

Induced Partial Saturation: From Mechanical Principles to Engineering Design of an Innovative and Eco-Friendly Countermeasure against Earthquake-Induced Soil Liquefaction

Mele,

Lirer,

Flora

2024

Geosciences

View full text Add to dashboard Cite

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.

show abstract

Section: Laboratory Tests On Partially Saturated Sandy Soilsmentioning

confidence: 99%

Section: Effectiveness Of Ips and Design Chartsmentioning

confidence: 99%

Section: Effectiveness Of Ips and Design Chartsmentioning

confidence: 99%

See 1 more Smart Citation

Induced Partial Saturation: From Mechanical Principles to Engineering Design of an Innovative and Eco-Friendly Countermeasure against Earthquake-Induced Soil Liquefaction

Mele,

Lirer,

Flora

2024

Geosciences

View full text Add to dashboard Cite

show abstract

“…It is highly liquefaction susceptible soil and suitable material for liquefaction studies [36], [37].…”

Section: Materials Testedmentioning

confidence: 99%

Gerilme Kontrollü Dinamik Üç Eksenli Deneyler ile Temiz Kumun Sıvılaşma Davranışının Belirlenmesi

Zeybek

2022

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

View full text Add to dashboard Cite

Gevşek halde bulunan kohezyonsuz zeminler, sismik yükler altında ön veya tam sıvılaşmaya maruz kalarak önemli yapısal hasara neden olabilmektedir. Geoteknik deprem mühendisliğinde, kumlu zeminlerin sıvılaşma davranışı, genellikle drenajsız koşullarda gerçekleştirilen gerilme kontrollü döngülü laboratuvar deneyleri ile belirlenmektedir. Bu çalışmada, yeniden oluşturulmuş doymuş temiz kum numuneleri üzerinde bir dizi gerilme kontrollü dinamik üç eksenli testler gerçekleştirilmiştir. Farklı rölatif sıkılıkta (%38 - 90) hazırlanmış numuneler 0.1 Hz veya 1 Hz yükleme frekansına ve farklı tekrarlı gerilme genliği oranına (CSR) sahip gerilmelere maruz bırakılmıştır. Benzer rölatif sıkılık ve tekrarlı gerilme genliği oranı ile farklı yükleme frekansında (0.1 Hz ve 1 Hz) gerçekleştirilen deneylerde, sıvılaşmaya neden olan çevrim sayısının 1 Hz yükleme frekans değerinde daha faza olduğu görülmüştür. Bu sonuç, kum numunelerinin yüksek yükleme frekanslarında daha yüksek sıvılaşma mukavemetine sahip olduğunu göstermektedir. Ayrıca, döngüsel yükleme frekansından bağımsız olarak, artan relatif sıkılığın kum numunelerinin sıvılaşma direncini önemli derecede artırdığı tespit edilmiştir.

show abstract

Laboratory Study on Soil Desaturation by Microbial Methods

Das,

Sreelakshmi,

Muthukkumaran

2024

Lecture Notes in Civil Engineering

View full text Add to dashboard Cite

Undrained Dynamic Response of Partially Saturated Sands Tested in a DSS-C Device

Cited by 14 publications

References 14 publications

Induced Partial Saturation: From Mechanical Principles to Engineering Design of an Innovative and Eco-Friendly Countermeasure against Earthquake-Induced Soil Liquefaction

Induced Partial Saturation: From Mechanical Principles to Engineering Design of an Innovative and Eco-Friendly Countermeasure against Earthquake-Induced Soil Liquefaction

Gerilme Kontrollü Dinamik Üç Eksenli Deneyler ile Temiz Kumun Sıvılaşma Davranışının Belirlenmesi

Laboratory Study on Soil Desaturation by Microbial Methods

Contact Info

Product

Resources

About