本研究乃應用室內實驗及數值方法模擬深層崩塌,首先發展基於無限邊坡理論及達西定律知有限元素法,再由室內實驗推得控制方程式之相關物理參數,例如凝聚力、內摩擦角及滲透係數,並以砂箱進行小尺度之崩塌試驗,並紀錄崩塌過程之位移、孔隙水壓增加及土壓力降低數據,實驗數據並用來修正數值模式,修正之數值模式,將可提供實際現場應用。 This study simulated a deep-seated landslide by laboratory experiment and numerical model. A finite element method based on Infinite Slope theory and Darcy's law was developed. Physical parameters including cohesion force, internal friction angle and permeable coefficient to be used in the governing equations of the numerical model were also obtained by laboratory experiments. The experiments were conducted in a setup called sand-box to create a small scale of a landslide in our laboratory. The process related to the landslide movement, the increase in pore-water pressure and the decrease of soil pressure during failure were recorded. The outcome of the landslide experiment was used to calibrate the numerical methods for future applications in the field case.