Performance-based assessment of permanent displacement of soil slopes using two-dimensional dynamic analysis

Zhang, J.; Xian, J. T.; Wu, Chunya; Zheng, Wen; Zheng, Jie

doi:10.1080/17499518.2021.2010765

Cited by 8 publications

(3 citation statements)

References 55 publications

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“…Ejecta-induced settlement was estimated separately using the severity chart of Hutabarat and Bray (2022). Lastly, Rathje and Saygili (2008, 2011), Bray and Macedo (2023), and Zhang et al (2022) have implemented performance-based procedures to assess seismic slope displacements.…”

Section: Previous Studiesmentioning

confidence: 99%

Performance-based probabilistic liquefaction-induced ground settlement procedure

Olaya,

Bray,

Abrahamson

2024

Earthquake Spectra

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Performance-based procedures represent an improvement over current state-of-practice procedures that treat the assessment of seismic demand and engineering response parameters independently. Procedures used in current practice generally provide estimates of liquefaction-induced ground settlement that are inconsistent with the desired ground settlement hazard level. A recently developed probabilistic procedure to estimate liquefaction-induced ground settlement is employed to develop a new performance-based procedure that estimates ground settlement which accounts for key sources of uncertainty. The ground-motion intensity and ground settlement estimations are integrated in the proposed procedure to produce hazard curves for liquefaction-induced ground settlement. The hazard curve for ground settlement links different hazard levels with their corresponding values of ground settlement by evaluating a wide range of ground-motion intensities and site characterization parameters with their associated uncertainties. The proposed performance-based procedure also permits the evaluation of different sources of uncertainty and their effects on the ground settlement estimate.

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Section: Previous Studiesmentioning

confidence: 99%

Performance-based probabilistic liquefaction-induced ground settlement procedure

Olaya,

Bray,

Abrahamson

2024

Earthquake Spectra

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“…Newmark 1 originated a simple method to calculate the sliding displacements caused by earthquakes and it was named Newmark sliding block analysis method, which took the time history of earthquake accelerations into consideration. Following the Newmark sliding block analysis method, many scholars have adopted sliding displacements to quantify the cumulative damage degree of slope under seismic load, such as, fully coupled deformable analysis, [2][3][4][5][6] Two-dimensional dynamic response analysis, [7][8][9] and study on the dynamic yield acceleration. 10,11 Considering the randomness of earthquake, Wang et al 12 proposes a new analysis method for random dynamic response analysis and permanent displacement reliability evaluation of soil slope under mainshock-aftershock sequence.…”

Section: Introductionmentioning

confidence: 99%

Seismic reliability analysis of soil slope based on Newmark sliding block model with representative slip surfaces and response surfaces

et al. 2023

Engineering Reports

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This paper presents a framework combining Monte Carlo Simulation (MCS) and the Newmark sliding block model with representative slip surfaces (RSS) (model II) and multiple response surfaces method (MRSM) to conduct seismic reliability analysis and risk assessment of soil slopes. An empirical threshold is introduced to define the limit state function to identify the failure samples in MCS and the sliding area and Newmark sliding displacement are multiplied to quantify the failure consequence. The proposed methodology is illustrated through a soil slope with multiple layers. The calculation results demonstrate that traditional Newmark sliding block model (model I) tend to underestimate the variations of yield acceleration. Both the failure probability and landslide risk exhibit decreasing trends with the increase of threshold. Significant discrepancy in failure probability and landslide risk between two models is found even for a small threshold. Therefore, the proposed methodology is highly recommended in seismic reliability analysis and risk assessment. The contributions of RSSs to the failure probability and landslide risk are insensitive to the variation of displacement thresholds.

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“…If more water infiltrates the soil slope, it creates a positive pore water pressure, adversely affecting the stability of the slope [15]. Numerous studies have investigated the occurrence of mass movements and debris flows triggered by rainfall, utilising various theoretical [16,17], numerical [18][19][20][21][22][23][24][25][26], experimental, and observational approaches [27,28]. Many studies focused on laboratory-based experiments to enhance understanding of landslide mechanisms under controlled precipitation conditions.…”

Section: Introductionmentioning

confidence: 99%

Effect of Water Saturation on Stability of a Hill Slope: Malin Case Study

Sudani¹,

Patil²

2023

ACAE

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The study presents a meticulous investigation into the catastrophic landslide that impacted Malin village in Pune district of Maharashtra, India. By employing a multi-faceted approach encompassing field, laboratory, and numerical analyses, in the study, stability governing parameters were thoroughly assessed with respect to varying levels of water saturation. Field investigation provided crucial insights into the geographical profile, field density, slope strata, and representative soil sample acquired from hill slopes. Furthermore, extensive laboratory investigations were conducted to gain a comprehensive understanding of the role of stability governing parameters under different water saturation levels. The limit equilibrium method was employed for numerical simulation to rigorously evaluate slope stability. The results revealed the significant influence of increased water saturation on stability governing parameters, leading to slope instability, which was confirmed by numerical simulation. The study further established that excessive rainfall triggered the landslide, saturating the soil mass and deteriorating the stability governing parameters, ultimately leading to instability. The findings of this study offer valuable insights for mitigating landslides and can be instrumental in developing effective monitoring and warning systems.

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Performance-based assessment of permanent displacement of soil slopes using two-dimensional dynamic analysis

Cited by 8 publications

References 55 publications

Performance-based probabilistic liquefaction-induced ground settlement procedure

Performance-based probabilistic liquefaction-induced ground settlement procedure

Seismic reliability analysis of soil slope based on Newmark sliding block model with representative slip surfaces and response surfaces

Effect of Water Saturation on Stability of a Hill Slope: Malin Case Study

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