https://scholars.lib.ntu.edu.tw/handle/123456789/37166
標題: | 土石流災害防治之研究(以南投示範區陳有蘭溪為對象)─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 | 作者: | 陳宏宇 | 公開日期: | 1999 | 出版社: | 臺北市:國立臺灣大學地質科學系暨研究所 | 摘要: | Chushui river is located on the south part of Shenmu village. This river is one of the branch of Chenyulan river and Hosir river, and is also one of the catchment on the Alishan mountain. In 31th July 1996, Herb Typhoon dropped a large quantity of rain and produced a debris flow from the upper part to the lower part of the Chushui river. The Chushui river was enlarged in width from 5 meters in origin to 40 meters finally. Most of the geomaterial in this debris flow were came from the both side of rock cliff. The rock type in this area mainly consist of Hersir formation of Miocene in western hill of Taiwan. It is included dark-grayish sandstone and shale, and medium to thin layer silty sand. Some of the drag folds and faults distributed on the study area and the rock characteristics is normally fracture. The discontinuitiues developed very well specially on the originated part on the both side of gully. The colluvium randomly deposited on the lower parts of gully. The middle of the thickness is around 2 to 10 meters. These unconsolidated deposited geomaterial is the mainly source for providing the debris flow. This research project will be approached on the 3 years time. The mainly point of this project is to understand the geological characteristics in originated section. The first years, the geological condition and geomorphological features should be investigated and find out the distribution of sediments in the gully. The second year, outcrop, discontinuitiues, and hazards area will be comprehended. The final year, all information will be combined together and estimated its real mechanism of geohazard in originated section. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/11735 | 其他識別: | 882625Z002041 | Rights: | 國立臺灣大學地質科學系暨研究所 |
顯示於: | 地質科學系 |
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882625Z002041.pdf | 571.29 kB | Adobe PDF | 檢視/開啟 |
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