Seismic soil-structure interaction: Analysis and centrifuge model studies

Finn, W. D. Liam; Ledbetter, Richard; Beratan, L.L.

doi:10.1016/0029-5493(86)90153-6

Cited by 6 publications

(1 citation statement)

References 3 publications

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“…Especially in tests related to slope stability, the influence of the slope self-weight is significant. Meanwhile, the nonlinear change in the in situ modulus and the modulus with a strain in the soil has a strong impact on soil-structure interaction (Finn et al, 1986). This can also affect the deformation and displacement of the slope, thus making the dynamic behavior of retaining structures unreliable.…”

Section: Introductionmentioning

confidence: 99%

Influence of Slope Amplification on the Pile Dynamic Behavior Based on the Data Mining Method

et al. 2022

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In this article, a centrifuge shaking table model test of anchored stabilizing piles for strengthening landslides was established, and the dynamic response characteristics of the pile–anchor–slope under earthquake action were analyzed. On this basis, combined with the fuzzy gray relational analysis and the rank-sum ratio method, the correlation between the amplification of the acceleration response of the heterogenous slope and the dynamic response of the support structure was explored. Based on the obtained results, relevant suggestions for engineering design were proposed. The results showed that the seismic amplification of the complex soil–rock slope reinforced by the pile–anchor structure was not uniform and the amplification coefficient had strong variability. Among them, the amplification coefficient of the slope, dynamic earth pressure, and dynamic bending moment of the pile near the connection of the pile–anchor cable continued to increase; the correlation between the seismic amplification and the seismic behavior of the pile–anchor structure is different at different positions of the slope. The measurement points with a higher comprehensive ranking of correlation are mainly concentrated in the pile–anchor connection, the middle of the slope, and the high-angle soil–rock interface. It is related to the geometric characteristics of the model and the high seismic amplification of the slope; for the pile–anchor connection part and the high-angle soil–rock structure surface of the slope, the shock absorption measures and grouting strength of the anchor cable’s anchoring section should be considered in the engineering design.

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Section: Introductionmentioning

confidence: 99%

Influence of Slope Amplification on the Pile Dynamic Behavior Based on the Data Mining Method

et al. 2022

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Centrifugal modelling of dynamic soil‐structure interaction

Weissman

Prévost

1989

Earthq Engng Struct Dyn

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This paper presents a centrifuge model that is capable of realistically representing soil-structure systems subjected to earthquake-like excitation. The model is validated by performing (i) free field soil tests, (ii) dynamic soil-structure interaction tests and (iii) a numerical analysis of the experimental results. The free field experiments show that the simulated earthquake, which is generated by the hammer-exciter plate method, is similar in amplitude and frequency content to a real earthquake. The experiments also demonstrate that a confined soil sample can satisfactorily model a horizontal soil stratum of infinite lateral extent when the containment walls are lined with an absorptive material to attenuate wave reflections that would otherwise occur. Measurements of the acceleration at different locations on the free soil surface indicate that the surface motion is fairly uniform over a relatively large area. This is further confirmed by a comparison made between the measured free and scattered field motions for a surface foundation. Next, a series of soil-structure interaction tests are performed which examine the dependence of radiation damping on the natural frequencies of the structure relative to the fundamental frequency of the soil stratum. The experimental results are shown to be consistent with established theories. Finally, the experimental results are used to compute the stiffness and damping parameters of a two degree of freedom numerical model of the soil-structure system. The experimental parameters are shown to be in good agreement with calssical text book formulae. This study demonstrates that the centrifuge model consistently behaves as expected for simple, but realistic, dynamic soil and soil-structure systems, and can, therefore, be used with confidence to examine more complicated systems that are not yet fully understood.

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Centrifuge modelling of seismic soil structure interaction effects

Ghosh

Madabhushi

2007

Nuclear Engineering and Design

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Seismic soil-structure interaction: Analysis and centrifuge model studies

Cited by 6 publications

References 3 publications

Influence of Slope Amplification on the Pile Dynamic Behavior Based on the Data Mining Method

Influence of Slope Amplification on the Pile Dynamic Behavior Based on the Data Mining Method

Centrifugal modelling of dynamic soil‐structure interaction

Centrifuge modelling of seismic soil structure interaction effects

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