土石流災害防治之研究(以南投縣陳有蘭溪為研究對象)─子計畫：神木村南側出水溪上游土石流發生部之地質特性探討(II)
Other Title
The geological characteristics in originated section of debris flow at Chushui
river, south part of Shenmu village(II)
river, south part of Shenmu village(II)
Date Issued
2000
Date
2000
Author(s)
DOI
892625Z002020
Abstract
The observation from the aerial photo
tell that the great volume of deposition had
existed on the main river before the hazard of
Herb typhoon. These deposited materials
were offered from the upper part of main
river by big landsliding. Both slope sides of
main river also offered a great mass
deposited materials to the channel after
typhoon and heavy rainy in every year. The
results of GPS measures demonstrated that
the river terrace had changed very often. It is means that the erosin and wasing off very
serious in main river every year. Total
volume of deposition is around 3.4 million
cubic meters. Both slope sides of main river
are still instability condition. In general, the
friction angle of shale ranges from 30 o to 33 o ,
the sandstone ranges from 30 o to 35 o .
Subjects
Aerial photo
landslide
instability
Publisher
臺北市：國立臺灣大學地質科學系暨研究所
Type
report
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