2006-08-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/714550摘要：本研究計畫希望能從中部地區陳有蘭溪、大甲溪，以及北部之大漢溪等河流中沈積物的補注量，與集水區中山崩及土石流的體積變化量，來探討在不同的地震及颱風事件中彼此間之關係。進而了解坡體中不連續面的分布，地質材料的特性等相對應的關係。這些地質材料特性的探討，將有助於了解河道的土石堆積、地表沖蝕，以及與坡體產生崩坍之關聯性。 第一年的研究工作主要在瞭解各集水區間之：(1)沈積物濃度變化的增加量，(2)山崩的重現率，以及(3)坡體的破壞模狀。第二年的計畫預定進行：(1)岩石的強度試驗，(2)坡體的穩定狀況，以及(3)探討山崩、土石流與沈積物關係。本研究工作之第三年則在探討：(1)河流中沈積物的真正來源。(2)沈積物的搬運機制。(3)山崩與侵蝕率間的關係。<br> Abstract: The purpose of the three years projects is try to comprehend the relationship between the sediment discharge, landslides with debris flow difference along the catchment of Chenyoulan river, Tachia river and Rahen river. The first year project is to do the site investigation which includes the geomaterial distribution, the measurement of various discontinuities and its orientation, and potential geometry models of slope failure in the study areas. The second year project includes the estimation of sediment discharge, the concentration change of suspended sediment, discontinuities analysis, the reactive ratio of landslide in different typhoons events. The final year project is to comprehead the relationship between the geomaterial characteristics with the landslide and erosion.