Shear Wave Velocity Measurement in the Centrifuge Using Bender Elements

El-Sekelly, Waleed; Tessari, Anthony; Abdoun, Tarek

doi:10.1520/gtj20130189

Cited by 32 publications

(13 citation statements)

References 14 publications

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“…Figure 2 shows a schematic of the laminar container along with the configuration of sensors used in the experiments (pore pressure transducers, accelerometers, lasers, and vertical LVDTs). The ratio of ring weight to saturated soil weight in each ring is about 15% (El-Sekelly 2014).…”

Section: Centrifuge Modeling At Rpimentioning

confidence: 99%

Preshake: A Database for Centrifuge Modeling of the Effect of Seismic Preshaking History on the Liquefaction Resistance of Sands

2016

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Several researchers found that the behavior of natural preshaken soils can be very different from artificial recent fills. This paper presents an extensive database of two very long centrifuge experiments (CS-5-1-1 and CC-5-1-1) performed both on silty and clean sand at the geotechnical centrifuge testing facility at Rensselaer Polytechnic Institute (RPI). The two experiments test the effect of seismic preshaking history on the liquefaction resistance of sandy soils. The database described herein was generated using the NEEShub online DataStore tool under the name “PRESHAKE: Centrifuge modeling of the effect of seismic preshaking on the liquefaction resistance of sands” (DOI: http://dx.doi.org/10.4231/D38K74X78 ). The paper discusses the tools and materials used in the experiments along with an explanation of each item in the database. Sample analyses are also presented in the paper to give an insight on the capabilities of the database for numerical and analytical applications. The paper is concluded with some possible applications along with tips and limitations of the database.

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Section: Centrifuge Modeling At Rpimentioning

confidence: 99%

Preshake: A Database for Centrifuge Modeling of the Effect of Seismic Preshaking History on the Liquefaction Resistance of Sands

2016

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“…1-3) and of 1.4%-30% (specimens No. [4][5][6], where the highest value was obtained for specimen No. 5.…”

Section: Tests Results and Discussionmentioning

confidence: 92%

“…V S is an important parameter for the design of geotechnical systems [3], particularly in seismically active areas [4,5]. It is necessary for design and site response purposes, is related to stiffness of a foundation, evaluation of site response during earthquakes, liquefaction potential [6], site characterization, soil density and its stratigraphy, or settlements of foundations [7].…”

Section: Introductionmentioning

confidence: 99%

Application of Bender Elements Technique in Testing of Anthropogenic Soil—Recycled Concrete Aggregate and Its Mixture with Rubber Chips

et al. 2017

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Featured Application: Recycled Concrete Aggregate can be a very good alternative material for natural aggregate. Using soil-rubber mixture as an engineering material may not only provide alternative means of reusing waste but also significantly change dynamic properties of soil.Abstract: This paper discusses the application of piezoceramic bender elements (BEs) for measurement of shear wave velocity in the time and frequency domain in a triaxial cell under different isotropic confinement. Different interpretation methods were used in the tests and their results were finally compared with each other. Two types of anthropogenic material were tested: pure Recycled Concrete Aggregate (RCA) and RCA-rubber chips mixtures (15% of rubber addition). Presented study is an attempt to describe dynamic properties, in terms of shear wave velocity (V S ), of the aforementioned anthropogenic material using the technique commonly applied for natural soil. Although some research is currently being carried out, in order to evaluate physical, chemical and mechanical properties of RCA and rubber-soil mixtures, still little is known of their dynamic properties. Hence, this work will provide the experimental results of shear wave velocity of RCA and its modified version. The results show that tires chips significantly decrease the V S values of modified RCA. They help to reduce the near field effect, but the received parameters are more incoherent. The V S values were found to be influenced by interpretation technique, mean effective stress and wave's propagation period. The maximum V S values were obtained mostly from the frequency domain method, although time domain analysis gives the results that are more coherent.

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“…The authors anticipate a margin of error of about 5–10% in relative density of the soil throughout the whole model. The viscous fluid was made by mixing specific amount of Methylcellulose with water at specific temperature and then testing the viscosity using the falling ball viscometer. This process involves some uncertainties which could result in about 5% error in the overall viscosity of the fluid. The shear wave velocities reported in the database are average values obtained using an analytical system identification technique and not direct measurement (e.g., bender elements, as in El-Sekelly et al 2014). The SI method used herein was originally developed by Elgamal et al (1995, 1996) and Zeghal et al (1995).…”

Section: Limitationsmentioning

confidence: 99%

“…The shear wave velocities reported in the database are average values obtained using an analytical system identification technique and not direct measurement (e.g., bender elements, as in El-Sekelly et al 2014). The SI method used herein was originally developed by Elgamal et al (1995Elgamal et al ( , 1996 and Zeghal et al (1995).…”

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confidence: 99%

A Database for the Experimental Study of Earthquake-Induced Liquefaction and Lateral Spreading in Sands

et al. 2016

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Centrifuge and large-scale testing in geotechnical engineering are very useful tools for modeling soil behavior under different loading conditions, particularly under earthquake loading. The paper presents an extensive database of nine centrifuge and large-scale liquefaction experiments performed both at the geotechnical centrifuge testing facility at Rensselaer Polytechnic Institute (RPI) and the large-scale testing facility at the University at Buffalo (UB). The database described herein was generated using the NEEShub online DataStore tool under the name "CENSEIS: Centrifuge and large-scale Modeling of Seismic Pore Pressures in Sands". The paper discusses the tools and materials used in the experiments along with an explanation of each item in the database. Sample analyses are also presented in the paper to give an insight on the capabilities of the database for numerical and analytical applications.The paper is concluded with some possible applications along with tips and limitations of the database.

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Shear Wave Velocity Measurement in the Centrifuge Using Bender Elements

Cited by 32 publications

References 14 publications

Preshake: A Database for Centrifuge Modeling of the Effect of Seismic Preshaking History on the Liquefaction Resistance of Sands

Preshake: A Database for Centrifuge Modeling of the Effect of Seismic Preshaking History on the Liquefaction Resistance of Sands

Application of Bender Elements Technique in Testing of Anthropogenic Soil—Recycled Concrete Aggregate and Its Mixture with Rubber Chips

A Database for the Experimental Study of Earthquake-Induced Liquefaction and Lateral Spreading in Sands

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