scholarly journals Development of shallow seismic landslide potential map based on Newmark’s displacement: the case study of Chi-Chi earthquake, Taiwan

2009 ◽  
Vol 60 (4) ◽  
pp. 775-785 ◽  
Author(s):  
Kuo-Lung Wang ◽  
Meei-Ling Lin
Keyword(s):  
Shallow Seismic ◽  
Potential Map ◽  
Seismic Landslide

scholarly journals Failure probability assessment of landslides triggered by earthquakes and rainfall: a case study in Yadong County, Tibet, China

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Lixia Chen ◽  
Le Mei ◽  
Bin Zeng ◽  
Kunlong Yin ◽  
Dhruba Pikha Shrestha ◽  
...  
Keyword(s):  
Local Governments ◽  
Daily Rainfall ◽  
Rainfall Threshold ◽  
Permanent Displacement ◽  
Distribution Maps ◽  
Landslide Hazards ◽  
Threshold Distribution ◽  
2015 Gorkha Earthquake ◽  
Seismic Landslide

Abstract Yadong County located in the southern Himalayan mountains in Tibet, China, is an import frontier county. It was affected by landslides after the 2011 Sikkim earthquake (Mw = 6.8) and the 2015 Gorkha earthquake (Mw = 7.8). Casualties and property damage were caused by shallow landslides during subsequent rainfall on the earthquake-destabilized slopes. Existing researches have generally examined rainfall- and earthquake-triggered landslides independently, whereas few studies have considered the combined effects of both. Furthermore, there is no previous study reported on landslide hazards in the study area, although the area is strategically applicable for trade as it is close to Bhutan and India. This study developed a new approach that coupled the Newmark method with the hydrological model based on geomorphological, geological, geotechnical, seismological and rainfall data. A rainfall threshold distribution map was generated, indicating that the southeast part of Yadong is prone to rainfall-induced landslides, especially when daily rainfall is higher than 45 mm/day. Permanent displacement predictions were used to identify landslide hazard zones. The regression model used to calculate these permanent displacement values was 71% accurate. Finally, landslide probability distribution maps were generated separately for dry and wet conditions with rainfall of varying intensities. Results can serve as a basis for local governments to manage seismic landslide risks during rainy seasons.

scholarly journals Application of shallow seismic profiling to study riverbed architectural facies: a case study of the Tocantins river (Pará - Brazil)

2012 ◽  
Vol 84 (3) ◽  
pp. 645-654 ◽  
Author(s):  
Marco Ianniruberto ◽  
José E.G. Campos ◽  
Vitto C.M. Araújo
Keyword(s):  
Hydroelectric Plant ◽  
Channel Dynamics ◽  
Architectural Elements ◽  
Shallow Seismic ◽  
Tocantins River ◽  
The Village ◽  
The City ◽  
Insight Into ◽  
Sedimentation Processes

To date, the vast majority of river sedimentology study has relied on two main categories of observation: direct observation of shallow trenches, cut faces and cores or geophysical survey on dry and shallow regions of braid bars. In this study, a sub-bottom profiler was used to investigate the stratigraphy of the lower course of the Tocantins River in the Amazon region, between the city of Tucuruì and the village of Nazaré dos Patos. The interest in this specific region lies on the possible variation of the fluvial regime due to the installation of the dam of the Tucuruì hydroelectric plant and the perspective that such river would become navigable as soon as the canal lock will be completed. Collected data show a detailed variety and complexity of architectural elements, as well as internal structure of sandy macroforms. Furthermore, the results allowed the identification of three main environments linked to channel sedimentation processes: by-pass, transition and deposition environments, whose distribution is linked to channel dynamics and bedrock topography. The application of the study is manifold, once it provides not only an insight into sedimentary structure of alluvial forms and sedimentation history, but also elements demanded to plan eventual engineering works for river navigability.

scholarly journals Utilizing shallow seismic refraction in defining the geotechnical properties of the foundation materials: A case study at New Minia City, Nile Valley, Egypt

2019 ◽  
Vol 28 (2) ◽  
pp. 145-154 ◽  
Author(s):  
Salah Shebl ◽  
K.S. Gemail ◽  
Mohamed Attwa ◽  
Shokry A. Soliman ◽  
Ahmed Azab ◽  
...  
Keyword(s):  
Seismic Refraction ◽  
Geotechnical Properties ◽  
Nile Valley ◽  
Shallow Seismic ◽  
Minia City

scholarly journals Co-seismic landslide topographic analysis based on multi-temporal DEM—A case study of the Wenchuan earthquake

SpringerPlus ◽  
2013 ◽  
Vol 2 (1) ◽  
Author(s):  
Zhikun Ren ◽  
Zhuqi Zhang ◽  
Fuchu Dai ◽  
Jinhui Yin ◽  
Huiping Zhang
Keyword(s):  
Wenchuan Earthquake ◽  
Topographic Analysis ◽  
The Wenchuan Earthquake ◽  
Multi Temporal ◽  
Seismic Landslide
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