Seismic Slope Stability Evaluation Considering Rock Mass Disturbance Varying in the Slope

Li, An-Jui; Qian, Zhiguang; Jiang, Jing-Cai; Lyamin, A. V.

doi:10.1007/s12205-019-0963-8

Cited by 12 publications

(9 citation statements)

References 39 publications

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“…However, to extend the predicted regression equation to additional conditions, the results of other strength parameters and geometric parameters need to be further tested to assess their validity, especially when used the HB failure criterion. Notably, since the FELA results are closer to the real solution than the LEM results, the calculated critical accelerations adopt the results from the FELA simulation (Li et al, 2009;Sloan 2013;Li et al, 2019) as the Y-axis in Figure 7 and Figure 8. This shows that the regression equations from the LEM and FELA are in good agreement under different strength parameters.…”

Section: Comparison Of the Lem And Fela Resultsmentioning

confidence: 99%

“…However, the difference of the σ ci /γHF between FELA and the LEM tends to be substantial when β ≥ 75 ° (Li et al, 2019). Therefore, according to the research of Li et al (2009Li et al ( , 2019, we revised the model from Saade et al (2016). Our model improves the limitations of previous mechanical models for regional seismic landslide hazard assessments.…”

Section: Examplesmentioning

confidence: 98%

“…The critical accelerations mentioned hereinafter are all average bound solutions. Detailed information about the technologies and solution algorithms used in FELA can be found in the literature (Sloan 1988;Sloan 1989;Lyamin and Sloan 2002a;Lyamin and Sloan 2002b;Lyamin et al, 2005;Sloan 2013;Krabbenhoft and Lyamin, 2015;Li et al, 2019).…”

Section: Felamentioning

confidence: 99%

“…Moreover, the σ ci /γHF from the LEM are close to the results of FELA when β ≤ 60 °. However, the difference of the σ ci /γHF between FELA and the LEM tends to be substantial when β ≥ 75 ° (Li et al, 2019). Therefore, according to the research of Li et al (2009Li et al ( , 2019, we revised the model from Saade et al (2016).…”

Section: Examplesmentioning

confidence: 99%

“…1) For Saade et al, 2016 andYuqiao et al, 2019, obtaining the critical acceleration of the slope with the limit equilibrium method (LEM) and the finite element method (FEM) requires many iterative calculations, which are estimated by trial and error and may therefore affect the calculation efficiency. 2) Saade et al, 2016, the safety factor and critical acceleration of the slope calculated by the Hoek-Brown (HB) criterion will be overestimated for steep slopes (Li et al, 2009;Li et al, 2019). 3) For Yuqiao et al, 2019, the mechanical model requires a slope angle <45 °.…”

Section: Introductionmentioning

confidence: 99%

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Modelling of Critical Acceleration for Regional Seismic Landslide Hazard Assessments by Finite Element Limit Analysis

Cheng

Wei

et al. 2022

Front. Earth Sci.

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The critical acceleration model plays an important role in seismic slope stability and determines the predictive accuracy of regional seismic landslide hazard assessments. Recently, the critical acceleration model based on the limit equilibrium method has been used to evaluate the seismic stability of regional slopes. However, when the Hoek-Brown failure criterion is used to evaluate the seismic stability of slopes with angles greater than 60°, the results obtained is unconservative by limit equilibrium method. Therefore, based on the simulation of a typical slope model with finite element limit analysis, prediction equations of the critical acceleration are established. The corresponding results are compared with the prediction results from the limit equilibrium method. This comparison shows that the proposed critical acceleration model has higher predictive accuracy than the limit equilibrium method, especially when the Hoek-Brown failure criterion is used to evaluate the slopes with angles greater than 60°. The proposed model is applicable to the global scope and can be effectively applied to regional seismic landslide hazard assessments.

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Section: Comparison Of the Lem And Fela Resultsmentioning

confidence: 99%