Stability and Run-out Analysis of Earthquake-induced Landslides

Zhang, Yingbin

doi:10.5772/59439

Cited by 4 publications

(1 citation statement)

References 143 publications

(106 reference statements)

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“…Dimensionless graphical solutions for both the time duration of motion and the sliding displacement for the downward motion of the sliding block model are given by 28,29 for both the half‐cycle and full‐cycle cases. These solutions were found identical to those of Figure 12 for a low value of ω ( ω = 0.01) and η > 0, where the rotational effect diminishes, something that partly verifies the obtained solutions.…”

Section: Discussion Of the Solutionsmentioning

confidence: 99%

Analytical solutions for the sliding displacement of model slopes simulating both the frictional and rotational effects under piecewise linear acceleration pulses

Stamatopoulos,

Protopapas

2023

Earthq Engng Struct Dyn

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Simplified methods predicting earthquake‐induced displacement of slopes are based on the Newmark sliding‐block model. This model does not consider the decrease in inclination of the sliding mass as a result of its downward motion and this effect is usually modeled by improving the above model by assuming that the critical acceleration value for relative motion of the block increases linearly with the distance moved. This work, for the first time, derives analytical solutions predicting the sliding displacement under idealized acceleration pulses of the model described above simulating both the frictional and rotational effects. First, a general solution is derived in dimensionless form for the motion of the sliding mass under a piecewise linearly varying pulse for the cases of both static stability and instability. The solution is obtained in each interval by (a) solving for the displacement and velocity in terms of these quantities at the end of the previous interval, (b) estimating the time corresponding to a sliding velocity equal to zero, and (c) investigating if the estimated time solution is consistent with the time interval and thus if it can be considered as the global solution. Then, based on this solution and the conditions where downward and upward motion starts, a procedure predicting the final displacement of the sliding mass for a piecewise linearly varying pulse is proposed. Finally, analytical solutions are derived, given in graphical form, partly validated, and discussed for the particular cases of half and full cycle pulses of rectangular, triangular, and trapezoidal shapes.

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Section: Discussion Of the Solutionsmentioning

confidence: 99%

Analytical solutions for the sliding displacement of model slopes simulating both the frictional and rotational effects under piecewise linear acceleration pulses

Stamatopoulos,

Protopapas

2023

Earthq Engng Struct Dyn

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Earthquake and rainfall-induced landslide hazard assessment of Kutupalong Rohingya camp using meteorological and geological information

Samm-A

Kamal

Rahman

2023

Stoch Environ Res Risk Assess

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The study aims to assess the landslide hazard scenario of the Kutupalong Rohingya camp, considered one of the largest humanitarian shelters for conflict-fled people. The camp area lying in a prominent tectonic setting and meteorological environment, is vulnerable to landslide hazards, specifically in the monsoon season. The worst-case scenario of earthquake and rainfall occurrence at the same time or one after another is considered in this study. Landslide favorable parameters (topographic, soil physical property, and contributing factors) are designed in the study to identify the hazard-prone areas through the factor of safety computation. Topographic parameters are prepared by combining field investigation and remote sensing-based information. Soil physical properties are designed in two different models to account for their uncertainties; normal probabilistic distribution and interpolation-based spatial distribution. The contributing factors (earthquake and rainfall) have been assessed using the probabilistic approach. The Peak Ground Acceleration (PGA) exceedance and rainfall intensities of 50, 75, 100, 200, and 475 years return period are applied in the factor of safety calculation. The factor of safety calculation has been run using two different methods; Monte-Carlo simulation using Python scripts and direct estimation method. Different duration (rainfall intensity) scenarios are also modeled to estimate the vulnerable areas in these models. The findings of the study are finally validated against field investigation-based landslide inventory with more than 84% accuracy at a 90% confidence interval.

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Random Seismic Response and Dynamic Fuzzy Reliability Analysis of Bedding Rock Slopes Based on Pseudoexcitation Method

et al. 2018

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Stability and Run-out Analysis of Earthquake-induced Landslides

Cited by 4 publications

References 143 publications

Analytical solutions for the sliding displacement of model slopes simulating both the frictional and rotational effects under piecewise linear acceleration pulses

Analytical solutions for the sliding displacement of model slopes simulating both the frictional and rotational effects under piecewise linear acceleration pulses

Earthquake and rainfall-induced landslide hazard assessment of Kutupalong Rohingya camp using meteorological and geological information

Random Seismic Response and Dynamic Fuzzy Reliability Analysis of Bedding Rock Slopes Based on Pseudoexcitation Method

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