A new formula for predicting probabilistic seismic displacement of reinforced slope with one row of piles

Nazari, Reza A.; Ghanbari, Ali

doi:10.1007/s10064-022-02597-z

Cited by 6 publications

(2 citation statements)

References 22 publications

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“…Jia 1 proposed a dynamic calculation method for rock slope stability considering anchor rods, and established the seismic degradation effect of rock anchor slopes. Nazari 2 adopted a numerical sliding model to calculate the displacement of pile-reinforced slopes based on the results of numerical simulation and statistical analysis. Huang 3 presented the results of a series of 50 g dynamic centrifuge tests that replicated the seismic response of pile-anchor reinforced slopes exposed to seismic stress fields.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on seismic characteristics of slope supported by long-short composite anti-slide piles

Lai,

Liu,

Liu

et al. 2024

Sci Rep

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In this study, a shaking table test was conducted on long-short composite anti-slide piles, the development process and dynamic response of cracks in a pile-supported slope were observed, and the failure mechanism of the slope was explored. The experiment showed that the failure of the pile-supported slope under an earthquake was a gradual process; cracks first occur at the top of the slope, where the support action of the piles was weak. As the input seismic action increased, cracks developed downwards along the slope. Owing to the support effect of the long-short anti-slide composite piles, the transmission path of the cracks changed, and the cracks developed along the top of the composite piles, ultimately leading to overtop failure. When cracks appeared on the slope or near final failure, the acceleration response law of the supported slope undergone a sudden change, which was an important indicator of slope instability. The distribution of dynamic soil stress on the pile body was greatly affected by the input peak ground acceleration, and the maximum bending moment of the long-short composite anti-slide piles was located near the weak interlayer.

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Section: Introductionmentioning

confidence: 99%

Experimental study on seismic characteristics of slope supported by long-short composite anti-slide piles

Lai,

Liu,

Liu

et al. 2024

Sci Rep

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“…Previous studies have predominantly adopted Newmark analysis or the limit equilibrium method, taking the permanent slope displacement or stability coefficient as the only index to evaluate the stability of reinforced slopes 12,13 . Although the aforementioned studies have provided the corresponding design parameters, they have ignored considering the safety of the pile-anchor system itself and failed to fully consider the complexity of seismic loading.…”

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confidence: 99%

A multi-objective optimization evaluation model for seismic performance of slopes reinforced by pile-anchor system

Xue,

Li,

et al. 2024

Sci Rep

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The significance means of the seismic reinforcement effect of a pile-anchor system for slope reinforcement has been widely recognized. However, cases of deformation failure and instability sliding of the pile-anchor system itself and the reinforced slope under seismic action continue to be recorded. Therefore, it is crucial to evaluate the seismic performance of slopes reinforced by a pile-anchor system to prevent the system’s failure. Current evaluation models of a slope reinforced by a pile-anchor system mainly focus on slope stability; however, the safety of the pile-anchor system itself is not sufficiently considered in these models. Consequently, in this study, we propose a multi-objective optimization evaluation (MOE) model for evaluating the seismic performance of slopes reinforced by a pile-anchor system that considers slope stability, safety of the pile-anchor system, and dynamic response of the slope. This model considers slope displacement, acceleration amplification factor of a slope, pile displacement, and anchor displacement as negative indexes, and anti-slide pile bending moment, shear force, and anchor axial force as intermediate indexes. The comprehensive weight of relevant indexes is obtained by combining subjective and objective weights, and the seismic reinforcement effect of the pile-anchor system is evaluated subsequently. In conclusion, the MOE model proposed in this study provides a novel solution for the optimization evaluation of a slope reinforced by a pile-anchor system in forthcoming projects.

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Multi-objective Reliability Based Optimization of Reinforced Soil Slopes with One Row of Piles Under Seismic Loading Conditions

Nazari

Ghanbari²

2022

Geotech Geol Eng

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A new formula for predicting probabilistic seismic displacement of reinforced slope with one row of piles

Cited by 6 publications

References 22 publications

Experimental study on seismic characteristics of slope supported by long-short composite anti-slide piles

Experimental study on seismic characteristics of slope supported by long-short composite anti-slide piles

A multi-objective optimization evaluation model for seismic performance of slopes reinforced by pile-anchor system

Multi-objective Reliability Based Optimization of Reinforced Soil Slopes with One Row of Piles Under Seismic Loading Conditions

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