行政院國家科學委員會專題研究計畫成果報告:水文對坡地災害因子潛勢影響分析─總計畫暨子計畫:因地震導致孔隙水壓上升對邊坡崩壞之影響（III）
Date Issued
2004
2004-07-31
Date
2004
2004-07-31
Author(s)
DOI
922625Z002031
Abstract
Under soil slope influenced by
earthquake or vegetation root system, the
characteristics of soil material and
movement of soil water content is quite
important. The pores of soil will be
deformed by the earthquake. Soil shear
strength and soil characteristics will
produce changes with the hydrological
processes (wetting or drying). In order to
accurate calculation slope factor of safety,
we must consider changes in the
environment of variation pores of soil,
vegetation root system and hydrological
processes (wetting or drying).
This root force model based on Wu
of research, in addition, Bishop and Janbu
model and unsaturated slope factor of
safety derived by myself carry on the safe
factor analysis of different slope. The
selection of vegetation is Taiwan China fir
and mountain jute, and probe into safety
factor of unsaturated soil slope due to
different the depth of wetting front,
different slope and root force model. This
research shows that safety factor of
vegetation slope is a bit higher than
without safety factor of vegetation slope in
the same slope. But the unsaturated slope
factor of safety derived by myself is
obviously different from Bishop and
Janbu’s model with the depth of wetting
front.
Subjects
Soil shear strength
slope factor of safety
wetting front
Publisher
臺北市：國立臺灣大學生物環境系統工程學系暨研究所
Type
report
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