2004-08-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/714450摘要:侵蝕率在北部與中部有明顯的差異性,此差異性與兩個地區的坡地災害有明顯的關係性。因此,本計畫擬從北部之基隆河與中部濁水溪兩地區來探討其侵蝕率與山崩之關係性,希望從兩條河流上、中、下游溝谷間的地質材料強度,來對比不連續面分布在本研究地區的影響,同時從坡體的穩定性分析中,也可以了解溝谷堆積物的真正來源及堆積物的搬運機制。 因此,在第一年的研究,主要是以收集河流中沈積物的量測資料以及現場調查為工作的重點,了解上、中、下游溝谷中地質材料確實的分布,不連續面的位態,以及分析坡體潛在性破壞模狀,並對比河流中懸浮沈積物的關係。在第二年的研究,則進行上、中、下游溝谷中的地質材料的物理性質、力學性質的試驗,並以這些地質材料的工程性質參數,進行量化分析溝谷兩側坡體的穩定狀況,以對比與河床沈積物的關係。在第三年的研究,則持續第二年的工作,不僅將現場調查的各個地點以GPS定位,並持續完成全區地質材料的試驗工作,更同時可對比子計畫一、子計畫三、子計畫四、子計畫五以及子計畫六中之各項關係。<br> Abstract: The erosion rate had obviously difference between north and central part of Taiwan. The difference links to geohazard in different geological environment on the mountain belt. This proposal is going to comprehend the various geomaterial characteristics on the upper part of the two catchments. In the first year study, the collection of suspended sediments and site investigation are major point in the research. The geomaterial distribution, discontinuity orientation and slope stability states are most important to compare the relationship between the suspended sediments and geohazard on the both catchments. In the second year study, the geomaterial properties and engineering parameters are major point to understand the stability condition in both catchments. Finally, all the site investigation and GPS measurement will be carried out on the last year. The results could compare to all the sub-projects and link their relationship to each other.山崩瘠土石流災害之探討-總計畫暨子畫:侵蝕作用與坡地災害的關係(I)