Seismic soil response of scaled geotechnical test model on small shaking table

Çelebi, Erkan; Göktepe, Fatih; Omid, Ahmad

doi:10.1007/s12517-018-4197-8

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…Goktepeet al [14] observed that the local soil properties have considerably amplified the earthquake response of the structures in comparison to the fixed base structure. Ç elebi et al [15] specified a realistic geometric scaling coefficient for test model to be used in a small-capacity shaking table. The scaling factor addressed in this study involves not only geometric similarity but also kinematic and dynamic similarity with the real system.…”

Section: Introductionmentioning

confidence: 99%

Effect of Acceleration on Wrap Faced Reinforced Soil Retaining Wall on Soft Clay by Performing Shaking Table Test

Hore

Chakraborty

Shuvon

et al. 2020

Proc. eng. technol. innov.

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This research incorporates shaking table testing of scale wrap faced soil wall models to evaluate the seismic response of embankment. Currently the seismic designs of highway or railway embankment rely on little or no empirical data for calibrating numerical simulations. This research is working towards filling that empirical data gap. The specific purpose of the study was to evaluate the seismic response of constructed embankment model regarding the different input base accelerations with fixed frequency. A series of one-dimensional (1D) shaking table tests (0.05g, 0.1g, 0.15g and 0.2g), were performed on a 0.4 meters high wrap faced reinforced-soil wall model. Additionally, it was placed over 0.3 meters high soft clayey foundation. Predominantly, the influence of the base acceleration on the seismic response was studied in this paper. The physical models were subjected to harmonic sinusoidal input motions at a fixed frequency of 1 Hz, in order to assess the seismic behavior. The effects of parameters such as acceleration amplitudes and surcharge pressures on the seismic response of the model walls were considered. The relative density of the backfill material was kept fixed at 60%. The results of this study reveal that input accelerations and surcharge load had significant influence on the model wall, pore water pressure, and changes along the elevation. Acceleration response advances with the increase in base acceleration, so the difference being more perceptible at higher elevations. The pore water pressures were found to be high for high base shaking and low surcharge pressures at higher elevations. The results obtained from this study are helpful in understanding the relative performance of reinforced soil retaining wall under different test conditions resting on soft clay.

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Section: Introductionmentioning

confidence: 99%

Effect of Acceleration on Wrap Faced Reinforced Soil Retaining Wall on Soft Clay by Performing Shaking Table Test

Hore

Chakraborty

Shuvon

et al. 2020

Proc. eng. technol. innov.

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“…Moreover, it may be damaged due to the softening of soilfoundation (Ering & Sivakumar Babu, 2020;Krishna & Latha, 2007;Kumar et al, 2020;Latha & Krishna, 2006;Zhou et al, 2020). The Soil and Structure Interaction (SSI) system was considered in this experimental study, to simulate actual soil-foundation (Bullock et al, 2019;Çelebi et al, 2019;He & Jiang, 2019;Hore et al, 2020;Srilatha, et al, 2013;Srinivasan et al, 2016). Soft soils in Dhaka, Bangladesh were used to build the soilfoundation.…”

Section: Introductionmentioning

confidence: 99%

Soil Zonation and The Shaking Table Test of The Embankment on Clayey Soil

Hore¹,

Chakraborty²,

Bari³

et al. 2020

Geos. Ind.

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The main objective of this research was to model the zonation of wrap faced embankment on soft clay foundation, by applying a shake table test. Also, to investigate the dynamic behaviors of clay soil, such as acceleration amplification, displacement and pore water pressure of wrap faced embankment. This was done with respect to changes in frequencies of 1 Hz, 3 Hz, 5 Hz, 10 Hz, 12 Hz and 15 Hz respectively. Constant acceleration (0.1 g) and surcharge (19 Kg) were applied by using a laminar box, placed on a shake table testing machine. The main elements of this research were the laboratory test, which was used for preparing reconstitute soil samples, and wrap faced embankment with frequency arrangement. After applying all test parameters, dynamic parameters were increased by rise in elevation with respect to frequency. The result shows that the maximum dynamic parameters were found at the frequency of 10 Hz. It is beneficial to the relative performances of the wrap faced embankment, which is the updated design parameter. Keywords: Seismic; Clay Soil; Frequency; Shake Table Test; Wrap Faced; Soil Zonation Copyright (c) 2020 Geosfera Indonesia Journal and Department of Geography Education, University of Jember This work is licensed under a Creative Commons Attribution-Share A like 4.0 International License

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