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Analysis of Potential Landslides Hazard on Nao-Liao Basin
著者：陳廣祥(Kuang-Hsiang Chen) ；曾信富(Hsin-Fu Tseng)
關鍵字：地理資訊系統 ; 崩塌 ; 集水區 ; Geographic Information System ; Landside ; Watershed
摘要： 中文摘要PDF ; 英文摘要PDF

In order to mitigate the occurrence of disaster, reach the goals from the perspectives of homeland security and sustainable resource utilization, this research employed related map and information targeting to the characteristics and distribution of the potential landslides on Nao-Liao Basin. The tool of this research adopted the GIS (Geographic Information System) which calculated respective potential landslide indices such as slope, slope aspect, elevation, rock strength, rock mass structure and fault distance, etc., which were the relevant factors impacting landslide based upon the disaster occurrences. These would serve as the foundation for the watershed area classification and zoning for this basin. In addition, onsite field surveys as well as relevant formulae for the water and soil conservation technological rules were included to analyze potential landslide regions so as to supplement the insufficiencies which could have been derived from research. This research findings unveiled that the impact weightings for potential landslide factors were listed sequentially as follow: fault distance, slope, aspect, rock strength, height and type of rock structure. The high-potential landslide regions mostly scattered in the west and southwest. The rest of the regions like the north and east were intermediate-potential regions which tended to be sparsely distributed in addition to minimal amount of landslide found whereas the northeast and southeast were mostly regions with low-potential in landslide. At the mainstream and the upstream of A1 sub-catchment region, there were two major landslide locations found. The onsite survey and analysis for the major landslide at the sub-catchment region of the mainstream revealed that the north side of this region had the outcrop of rock layer and it should have approached stabilization stage whereas the south side was soil-based which tended to be unstable; therefore this spot should be strengthened with planting of vegetation as the primary means so as to alleviate the slope surface erosions.


臺東縣延平鄉鸞山村中野部落邊坡滑動原因探討/ 許中立梁正儀鍾庫比亞張清晏徐弘明
結合生態工程於南投縣集集鎮清水溝溪排水幹線之環境營造及景觀規劃/ 彭思顯蔡明波范世億
應用二維淺水流方程之有限體積數值模式模擬潰壩水流/ 彭思顯
南瑪都颱風期間來義鄉之防災應變作為檢討/ 陳淑慈許中立郭子銘吳俊昇許正葳翁主怡江泓詮
腦寮溪流域之崩塌潛勢災害分析/ 陳廣祥曾信富

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