A general model for predicting the earthquake-induced displacements of shallow and deep slope failures

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

“…A static yet near-unstable slope has a factor of safety below or equal to one. A F s less than one indicates an unstable slope that has failed or likely to fail (Salunkhe et al, 2017;Tsai & Chien, 2016), whereas a F s above 1.5 indicates a stable slope (Salunkhe et al, 2017;Tsai & Chien, 2016).…”

“…Flexible Block Displacement, (D n ): Flexible displacement of slope could be determined using peak ground acceleration, mean periods, seismic coefficient, seismic coefficient time history, natural period of sliding mass and mean period of the earthquake (P GA, T m , k max , k v elmax , T s , T m ). where the P GA and P GV for shallow failure translates into k max and k v elmax as was proposed by (Rathje & Antonakos, 2011;Tsai & Chien, 2016), and the dynamic response of flexible sliding block interacts with incident motion is expressed as in Eq. ( 17).…”

“…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).…”

Effect of Characteristics of Ground Motion on Seismically Induced Sliding Surface of Slopes

“…Rathje and Antonakos [10] developed a unified predictive model to account for dynamic response of sliding mass. Tsai and Chien [11] followed the same hypothesis and developed a displacement model for rigid and flexible slopes. In both pseudo-static and Newmark methods, it has been assumed that the critical sliding surface is independent on the frequency characteristics and amplitude of the input ground motion.…”

Engineering modelling of the progressive retreat of cliffs

“…Cliff evolution is caused and / or accelerated by several physical agents (Arkin and Michaeli, 1985, de Lange and Moon, 2005, Briaud, 2008, Collins and Sitar, 2010. Key drivers of slope instability are seismic action (Chen and Liu, 1990, Ling and Leshchinsky, 1995, Loukidis et al, 2003, Wasowski et al, 2011, Rathje and Antonakos, 2011, Yang and Chi, 2014, Tsai and Chien, 2016, rainfall and climatic variations (Leroueil, 2001, Frayssines and Hantz, 2006, Take and Bolton, 2011, Conte and Troncone, 2012, Springman et al, 2013, weathering (Yokota andIwamatsu, 2000, Hachinohe et al, 2000), crack formation (Baker, 1981, Hales andRoering, 2007) and wave action for sea cliffs (Benumof et al, 2000, de Lange andMoon, 2005). In the analytical part of this work all these actions, but the last one, are considered.…”