新中橫公路沿線地質災害之研究─(子計畫四)新中橫公路邊坡破壞機制及防治之研究
Date Issued
1998
Date
1998
Author(s)
DOI
872116M002026
Abstract
The New East-West Cross Highway is a
famous scenic road in Taiwan. However,
due to its specific unfavorable nature of
topology, geology, hydrology, as well as road
construction and reclamation made in recent
years, its vicinities has suffered many
landslides, rockfalls, and debris flows during
Typhoon seasons or in heavy rainfall days.
The disasters not only broke down traffic but
also caused many deaths and property loss.
Hence, the remedial study is very importance.
According to the reconnaissance on
Tai-21 route of this highway, there were
seventy-eight landslide and twenty-five
debris flow locations selected for
investigation. By looking into more details,
the failure types and causes were identified.
From this study, the influence factors can be
summarized that include vegetation
conditions, geological conditions (rock
property, geological structure, and colluvial
deposit), precipitation, man activities, natural
weathering, etc. On the other hand, the
causes to debris flows include hydologcical
conditions (precipitation, catchment area),
river bed slope, geological factors, man
activities, road constructions, old landslide,
etc. The occurrence of these factors is
presented by percentage in tables for
reference.
Subjects
Slope Failures
Investigation
New East-West Cross Highway
Publisher
臺北市：國立臺灣大學土木工程學系暨研究所
Type
report
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