Earthquake-induced Landslides Behavior Simulation Using Numerical Model
Date Issued
2010
Date
2010
Author(s)
Lin, Yam-chih
Abstract
Taiwan lies in the interjunction of Eurasia and Philippines sea plates, the platescollide with each other causing the rugged landscape. However, massive rainfall andearthquake often trigger landslides, which may lead to serious casualties and loss of properties. If the run-out of landslides could be simulated, then we can take some
precautions against the hazard, so its applications are quite extensive.
This study is based on the continuous mechanics and sliding-block analysis, two numerical methods in this study, Newmark method and FEM, numerical models were
established to simulate the earthquake-induced landslides behavior, including run-out distance, critical acceleration, and initiation time. The data of large scale-shaking table test by Wang and Lin (2009) were used for simulation and results were compared with the results of experiment. The plastic zone is considered the location of failure plane,and parameter studies were also performed to find out the effects of each factor on the
run-out distance.
The numerical model was applied to the field case at Hoya village in Nantou County, the 921 earthquake acceleration record was applied to the bottom of the model,and estimated sliding surface to simulate the crack development and the run-out distance.
The result shows that the continuous mechanics numerical model can simulate well with both cases, and the run-out distance and starting time fit the experiment results;
Therefore, numerical model can simulate the earthquake-induced landslides well.
Subjects
Newmark
landslides
plastic zone
critical acceleration
File(s)![Thumbnail Image]()
Loading...
Name
ntu-99-R97521104-1.pdf
Size
23.32 KB
Format
Adobe PDF
Checksum
(MD5):87c4661a094f7fde3faf4603589048b7