| Summary: | 碩士 === 國立臺北科技大學 === 土木與防災研究所 === 99 === Taiwan is a land of complex geology and varied terrain. Slope accounts for more
than two-thirds of the total area of the densely populated Taiwan. The stability of
slope is far worse than plain land. Slope hazardous factors are not more than poor
geological conditions, concentrated rainfall, complex groundwater, riverbank erosion,
and earthquake. The concentrated rainfall is the main hazard factor. As an island, the
major rainfall sources are typhoon and monsoon rain. Due to global climate changes,
it becomes increasingly difficult to predict the climate. Each typhoon brings about
rainfall above records.
However, rainfall increases the level of groundwater. This study analyzed the
relationships between slope stability, groundwater level, and slope failure as well as
the damage trend. With Mt. Houshanyue in Wenshan District, Taipei as an example,
this study used the finite element PLAXIS software to analyze the damage trend and
the damage behavior model.
Mt. Houshanyue in Wenshan District of Taipei produced landslides in 2009. Due
to the complex geology and bordering on Taipei as a representative of the surrounding
mountainous regions, this study used the numerical analysis to discuss the relationship
between geology and groundwater level.
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