A large-scale landslide and related mechanism: a case study in the Qazvin–Rasht freeway, Iran

Characterization of large-scale landslides and their susceptibility evaluation in central Nepal Himalaya

“…Orientation of bedding of rock mass is another factor to control the towards the slope dips favors for the LSL (Chung et al, 2017;Ghobadi e al., 2012). Inter-bedding characteristic of rock strata having high di properties usually supports to the occurrence of LSL (Ghobadi et al,201 Many researchers mentioned that LSL are characterized by the com defined by Varnes 1978(Ghobadi et al, 2017Wilson et al, 2003; Ku mainly controlled by topographic, geomorphic and geologic factors. Majority of LSL are oriented at the perpendicular direction of the regio the study it is clear that LSL are also control by the altered lithologic faults (Zhou et al, 2019).…”

“…(3) carbonate rocks, Paleozoic rocks and Miocene leuco-granite have high landslide frequency and the FR is significant (>1). This indicates that these geological classes are prone to the LSL due to variable mechanical properties of inter-bedding characteristics and geometric orientation of rock strata (Wilson et al, 2003;Timilsina et al, 2012;Zerathe et al, 2014;Chung et al, 2017;Ghobadi et al, 2017;Kuo et al, 2018). The land cover types; barren land, bush/grass land and forest, which represents to high landslide distribution with some of significant FR (>1) is shown in Table 2.…”

“…This study focused on the characterization of LSL after knowing its distribution pattern in the central Nepal by establishing the relationship between the LSL and its controlling factors. Geomorphometric, geological, hydrogeological and landcover/ land-use practice are major factors associated with the LSL (Huang and Li, 2008;Timilsina et al, 2012;Ghobadi et al, 2017). Slope is the prime factor to define the dimension of the landslides and in the region study area ranges from 0° to 86.21° slope angle which is divided into 5 intervals.…”

“…The large-scale landslides (LSL) are characterized by complex nature of failure (Varnes, 1978;Wilson et al, 2003;Ghobadi et al, 2017;Kuo et al, 2018). The LSL is largely controlled by the geological setting of the area i.e.…”

“…The LSL is largely controlled by the geological setting of the area i.e. orientation of the rock strata with respect to slope (Timilsina et al, 2012;Chung et al, 2017;Ghobadi et al, 2017). Inter-bedding characteristics of rock strata with different mechanical property is another prime…”