Permanent displacement models of earthquake-induced landslides considering near-fault pulse-like ground motions

Zhang, Yingbin; Xiang, Chenlin; Chen, Yanlong; Cheng, Qiangong; Xiao, Li; Yu, Peng; Chang, Zhiwang

doi:10.1007/s11629-018-5067-2

Cited by 20 publications

(10 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…T m can also be evaluated from the Fourier amplitude spectrum and is defined as in Eq. ( 14) (Du & Wang, 2017;Zhang et al, 2019).…”

Section: Proposed Slope Unit's and Displacement Methodsmentioning

confidence: 99%

“…Step 6. Rigid Block Displacement, (D n ): The Rigid block Displacement model proposed by (Zhang et al, 2019) is preferred due to its lower error rate and higher efficiency than other displacement models. The rigid block displacement is dependent on peak ground velocity (P GV ) and peak ground acceleration (P GA) values since the period (T s ) of a sliding mass is null, the dynamic response could be insignificant (Rathje & Antonakos, 2010).…”

Section: Proposed Slope Unit's and Displacement Methodsmentioning

confidence: 99%

“…Landslides occur on slopes and have been the rationale behind making earthquake-induced landslides and seismic engineering a scientific and national demand. Thus, its evaluation provides general estimates of future earthquake-induced landslides based on medium and long-term predictions of earthquake distribution in other to provide a possible mitigation measure to curb its impact on life and properties (Bray & Travasarou, 2018;Salunkhe et al, 2017;Tsai & Chien, 2016;Wang & Lin, 2010;Zhang et al, 2019). Historic landslides based on statistical methods were the subject of landslides and slope stability zonation research in the past before advancing into current scientific and engineering stability analysis models (Cencetti & Conversini, 2003;Tsai et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…The precision of the Newark Rigid Dynamic Block Model cannot be misconstrued, as it produces a stronger correlation between the estimated sliding block displacement and the mapping location of the earthquake-triggered landslide. This makes the Newark Rigid Dynamic Block Model suitable for the prediction of earthquake-induced landslides (Rathje et al, 1998;Tsai et al, 2019;Xie et al, 2003;Zhang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hazard Assessment of Earthquake-Induced Landslides Based on a Mechanical Slope Unit Extraction Method, A Case in Ghana

Buah

Zhang

et al. 2022

Preprint

View full text Add to dashboard Cite

Abstract. Slope unit extraction is integral to earthquake-induced landslide analysis. The conventional watershed and hydrological slope unit extraction methods are precarious with a sudden change in slope gradient along the flow direction, which result in slope unit heterogeneity, conjoint slopes, and boundary defects of the extracted slope unit. This paper addresses this research gap by proposing a mechanical slope unit extraction method that combines watershed points, hydrological, and segmentation methods. This proposed method defines a slope unit as a closed homogeneous space of points overlaid by a mesh having a variance in the slope gradient along its flow direction. The method extracts and uses 3D points to solve slope heterogeneity defects associated with the conventional watershed methods, segmentation to solve boundary defects, and considers the slope pattern and incident ray at a depth to estimate the possibility of earthquake-induced landslides. Ghana (West Africa) is selected to test the proposed slope unit extraction method. The result shows that the method overcame boundary problems, heterogeneity, sudden gradient change, and conjoint slope unit defects associated with the conventional watershed and hydrological method and shows a uniform slope unit for landslide analysis in Ghana. The landslide prediction rate of Ghana also presents 70.9 % landslide inventory, giving an estimated threshold displacement of 9 cm.

show abstract

“…T m can also be evaluated from the Fourier amplitude spectrum and is defined as in Eq. ( 14) (Du & Wang, 2017;Zhang et al, 2019).…”

Section: Proposed Slope Unit's and Displacement Methodsmentioning

confidence: 99%

Section: Proposed Slope Unit's and Displacement Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hazard Assessment of Earthquake-Induced Landslides Based on a Mechanical Slope Unit Extraction Method, A Case in Ghana

Buah

Zhang

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The relative movement of two plates of fault produces the static deformation field, and there is a permanent ground displacement [38] in the time history curves of displacement near the fault, which is called the fling step effect. This permanent ground displacement causes a single pulse of velocity, which is generally parallel to the fault.…”

Section: Characteristics Of Near-fault Ground Motionsmentioning

confidence: 99%

Nonlinear Dynamic Response of a CC-RCC Combined Dam Structure under Oblique Incidence of Near-Fault Ground Motions

Zhang

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

The velocity pulse contained in near-fault ground motions have a tremendous impact on dam safety. Previous studies have mainly focused on the response of dams under near-fault seismic records without considering the obliquely incident seismic waves. In this study, the structure–soil interaction (SSI) is taken into consideration, and the nonlinear behavior of a conventional concrete roller-compacted concrete (CC-RCC) gravity dam under near-fault pulse records and non-pulse records is investigated with consideration of the obliquely incident P waves. On the basis of the dam site conditions, three groups of near-fault pulse records are chosen, and three corresponding non-pulse records are fitted by their acceleration response spectra. Combining with the viscous-spring artificial boundary, the wave input method is proposed to transform the near-fault seismic records into the equivalent nodal forces at the boundary of the foundation. The concrete damaged plasticity model is used for the nonlinear analysis. The results show that the pulse ground motions are more destructive than the non-pulse motions. The nonlinear behavior of the dam varies with the incidence angle of P waves and generally reaches a maximum at 60° and 75°, the worst damage occurs at the interface between different materials of the dam, and the spatial variation of its damage is very obvious under near-fault seismic records with various incidence angles. Therefore, the effect of the angle of obliquely incident seismic waves and near-fault pulse effect should be considered comprehensively in the seismic analysis of dams.

show abstract

Predictive model for seismic sliding displacement of slopes subjected to pulse-like motions

Lashgari

Jafarian

Haddad

2021

Bull Eng Geol Environ

View full text Add to dashboard Cite

Permanent displacement models of earthquake-induced landslides considering near-fault pulse-like ground motions

Cited by 20 publications

References 49 publications

Hazard Assessment of Earthquake-Induced Landslides Based on a Mechanical Slope Unit Extraction Method, A Case in Ghana

Hazard Assessment of Earthquake-Induced Landslides Based on a Mechanical Slope Unit Extraction Method, A Case in Ghana

Nonlinear Dynamic Response of a CC-RCC Combined Dam Structure under Oblique Incidence of Near-Fault Ground Motions

Predictive model for seismic sliding displacement of slopes subjected to pulse-like motions

Contact Info

Product

Resources

About