This study investigated the efficiency of subsurface drainage systems-which comprise drainage wells and galleries-to analyze the slope stability of landslides in Lishan in central Taiwan during Typhoon Toraji in 2001 (with subsurface drainage remediation) and Typhoon Amber in 1997 (without remediation) by using the numerical analysis method. The drainage effects of drainage wells and galleries were simulated by assigning a series of line-type and point-type drainage boundary conditions along drainage boreholes in the numerical model. The numerical results and monitoring data indicated that the subsurface drainage systems for handling landslides in Lishan are functional and capable of accelerating drainage of infiltrated rainwater caused by prolonged heavy rainfall and reinforcing slope stability against rapid deterioration during landslides.
為了持續優化網站功能與使用者體驗,本網站將Cookies分析技術用於網站營運、分析和個人化服務之目的。
若您繼續瀏覽本網站,即表示您同意本網站使用Cookies。