碩士 / 國立東華大學 / 自然資源管理研究所 / 90 / Eastern Taiwan is a landslide-prone region. Landslides induced by typhoons, heavy rain, or earthquakes not only paralyze traffic but also cause severe damage in property and threaten lives. The main objective of this study is to set up a database along the three highways (the 11th provincial highway, the 193th county highway, and the 11th-I provincial highway) of the Northern Coastal Range of the eastern Taiwan, by collecting and interpreting the corresponding information from topographic maps, geological maps, and disaster records (1995-2001) offered by the Taiwan Highway Bureau as well as field investigation. Statistic results of geological and rainfall factors influencing the slope failure were presented in this thesis.
The research concludes as follows: (1) The 11th provincial highway is a dangerous road with a lot of huge landslides. (2) The most dangerous sections are 19~23k, 34~37k of the 11th provincial highway and 10~13k, 16~17k of the 11th-I provincial highway. (3) The annual slope failure volume has presented regularity change from one year to next year. (4) Landslides with a failure volume of not less than 200m3 have a cumulative frequency-size distribution with a power-law dependence on volume of failure. (5) Transported andesitic blocks (b) and Paliwan Formation Suilien Member (Pls) are landslide-prone formations. (6) Low accumulate rainfall (about 350mm) will induce landslides on the 11th provincial highway or in Transported andesitic blocks (b).
| Identifer | oai:union.ndltd.org:TW/090NDHU5148007 |
| Date | January 2002 |
| Creators | Wei-Fang Sun, 孫維芳 |
| Contributors | Zue-Er Chen, 陳紫娥 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 64 |
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