Polymer Injection and Liquefaction-Induced Foundation Settlement: A Shake Table Test Investigation

Prabhakaran, Athul; Kim, Kyung‐Tae; Orang, Milad Jahed; Qiu, Zhijian; Ebeido, Ahmed; Zayed, Muhammad; Boushehri, Reza; Motamed, Ramin; Elgamal, Ahmed; Frazao, Cliff

doi:10.1061/9780784482810.001

Cited by 6 publications

(7 citation statements)

References 5 publications

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“…Therefore, improving the ductility of concrete is very important, especially due to the fact that concrete structures may experience extreme loadings during their lifetime [11][12][13][14]. To address such a deficiency, a continuous reinforcing bar has been applied to resist the tensile force imposed on the structure [15][16][17][18]. Unlike continuous reinforcing bars, fibers are short, discontinuous, and randomly distributed throughout the concrete to produce a more ductile and crack control matrix.…”

Section: Introductionmentioning

confidence: 99%

“…Unlike continuous reinforcing bars, fibers are short, discontinuous, and randomly distributed throughout the concrete to produce a more ductile and crack control matrix. Fibers used in concrete [18][19][20][21] can be made of steel, glass, and polymer. Authors in [22][23] investigated the mechanical behavior of polymers by infusing machine learning algorithms and asserted the advantages of using polymers on concrete's characteristics which is applicable to real-world problems [12,18].…”

Section: Introductionmentioning

confidence: 99%

“…Fibers used in concrete [18][19][20][21] can be made of steel, glass, and polymer. Authors in [22][23] investigated the mechanical behavior of polymers by infusing machine learning algorithms and asserted the advantages of using polymers on concrete's characteristics which is applicable to real-world problems [12,18]. The random and closely spaced distribution of steel fibers enabled them to control the development of cracks better than continuous bars.…”

Section: Introductionmentioning

confidence: 99%

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Application of Ultrasonic Measurements for the Evaluation of Steel Fiber Reinforced Concrete

Gebretsadik

Jadidi

Farhangi

et al. 2021

Eng. Technol. Appl. Sci. Res.

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This study investigates the feasibility of the application of ultrasonic measurement to characterize Steel-Fiber-Reinforced Concrete (SFRC). Specifically, the effects of steel fiber content, age, moisture content, and fiber orientation on Ultrasonic-Pulse-Velocity (UPV) were investigated. In this regard, beam and cylindrical samples were fabricated with different steel fiber contents. The result indicated that for beam specimens the UPV increases with the addition of fiber up to 2% and decreases for higher fiber percentages. Additionally, the fiber orientation within the beam specimens influences the UPV measurements. For cylindrical samples, the rate of UPV decreased with the addition of steel fiber reinforcement. In addition, it was discovered that the curing period affects the magnitude of UPV.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Application of Ultrasonic Measurements for the Evaluation of Steel Fiber Reinforced Concrete

Gebretsadik

Jadidi

Farhangi

et al. 2021

Eng. Technol. Appl. Sci. Res.

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“…[7] assessed the reliability of 1D-Shaking table tests for studying liquefaction. [8][9][10][11][12] conducted shaking table tests to investigate large-scale liquefaction and post-liquefaction behaviour. Overall, these earlier studies have concluded that shaking table tests are a suitable method for modelling liquefaction.…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis of liquefaction potential with variations of soil relative density and earthquake frequency

Salimah,

Alvaro,

Prakoso

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The resistance of sandy soil against liquefaction is influenced by its grain size and relative density. This study investigates the potential for liquefaction and settlement resulting from liquefaction. A single axis shaking table was employed, with a displacement of 2.5 cm and a box measuring 400 mm long, 400 mm wide and 600 mm height. Various relative soil densities were evaluated, namely 40%, 50%, 60%, and 70%, along with 1 Hz and 1.2 Hz seismic frequency variations. The experiment used three pore pressure transmitter sensors to measure the increase in pore water pressure (top, middle, and bottom), accelerometer sensors to measure acceleration, and settlement measurements at 12 points. The experimental findings prove a correlation between the relative density of the soil and its liquefaction potential. Increasing the relative density of the soil results in a decrease in settlement, ranging from a maximum settlement of 2.93 cm to a minimum settlement of 1.77 cm. Concerning the variation in earthquake frequencies, higher frequencies correspond to increased soil settlement, showing a difference of 15% to 33%. This study highlights the significance of earthquake frequencies and relative soil density in assessing the potential for soil liquefaction.

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“…Yang et al [7] analyzed the effectiveness of a novel treatment approach involving microorganisms that promoted carbonate precipitation using the discrete element method (DEM). Prabhakaran et al [8] evaluated the use of polymer injection into sand to prevent liquefaction using a centrifugal shaking table as their primary research equipment. The centrifugal machine can apply a 1334 (2024) 012045 IOP Publishing doi:10.1088/1755-1315/1334/1/012045 2 sufficiently high centrifugal acceleration to the model, ensuring that the smaller-scale model experiences the same stress levels as the actual project, provided that the model adheres to the scaling relationship between acceleration and geometry.…”

mentioning

confidence: 99%

Further development of distinct lattice spring model with Finn model for liquefaction analysis

Li,

Shoaib,

Wei

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The hazards associated with sand liquefaction induced by dynamic events are significant. The study of the dynamic stability in hydraulic structures presents an interdisciplinary challenge encompassing both geotechnical engineering and engineering seismology. This study was based on an actual hydraulic engineering project. To effectively predict changes in pore pressure caused by earthquakes, we integrated the Finn constitutive equations into a distinct lattice spring model (DLSM). In this study, the code was customized to accommodate multiple materials simultaneously participating in the calculations, thus simplifying the solution to complex engineering problems. Initially, we validated the DLSM’s liquefaction equation by comparing it with the finite difference method. Subsequently, we conducted a comparative analysis of liquefaction in an engineering project of sluice using the enhanced DLSM. Our analysis indicates that untreated sand has a severe risk of trending toward liquefaction, presenting a hazard to hydraulic engineering. The incorporation of a gridded concrete framework significantly mitigated the seismic-induced pore pressure accumulation and irreversible deformations caused by vibrations. A comparative study showed that concrete retaining walls with concrete supports are more effective at reducing liquefaction hazards and minimizing irreversible deformations in engineering structures.

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Polymer Injection and Liquefaction-Induced Foundation Settlement: A Shake Table Test Investigation

Cited by 6 publications

References 5 publications

Application of Ultrasonic Measurements for the Evaluation of Steel Fiber Reinforced Concrete

Application of Ultrasonic Measurements for the Evaluation of Steel Fiber Reinforced Concrete

Experimental analysis of liquefaction potential with variations of soil relative density and earthquake frequency

Further development of distinct lattice spring model with Finn model for liquefaction analysis

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