2005-01-012024-05-15https://scholars.lib.ntu.edu.tw/handle/123456789/661834摘要：本研究為瞭解集集大地震造成之九份二山地區潛在崩塌地的穩定性，以及豪雨是否影響潛在崩塌地的穩定情形，擬訂長期調查監測潛在崩塌地穩定性變動情形。研究架構包括潛在崩塌地的現場調查、地質鑽探調查、岩石力學試驗、物理探測等基本特徵調查。其次，設置雨量計、地下水位計、地中測傾管等觀測設施，進行蒐集崩塌地區之降雨、地下水位、地表及地中位移量的資料。並應用食鹽水檢層方法，檢測分析潛在崩塌地地下水流動特性。經由長期監測資料分析結果，以及坡面穩定性分析，可供瞭解地震後潛在崩塌地的機制，以及崩塌後坡面安定的長期變遷情形，並可提供對策工程設計及施工時之重要參考依據。<br> Abstract: This study is to understand the characteristics of potential landslide after Chi-Chi earthquake and the stability of potential landslide after rainstorm in Joe-fen-er-shan area. Longterm monitoring and investigation involve sliding land survey, geological boring survey, rock mechanics test, and sounding survey are proposed in the landslide area. Meanwhile, the observational apparatus involve rain gauge, groundwater gauge, and underground inclinometer et al. are set up in the landslide area, that to collect continuously the variation data of rainfall, groundwater table, and sliding displacement. Also, salt logging test is proposed to understand the groundwater flowing characteristics that have relations with landslide stability. From longterm observed data analysis and slope stability analysis, the mechanism of the landslide area and slope stability after earthquake are clear. Also, the research results are effectively contributed to the landslide treatment engineering design and practices.集集大地震九份二山崩塌地地下水Chi-Chi earthquakeJoe-fen-er-shanlandslidegroundwater.