关键词: 边坡稳定分析, 强度折减有限元法, 失稳判据, 崩坡积体

Abstract:

The colluvial slope of a hydropower project, closed to the dam site, is large in scale, complicated in geological condition and its stability is very important to the main buildings of the hydro-complex. The slope stability is evaluated with strength reduction FEM and the safety coefficients by different instability criterions are discussed and compared with the result by limit equilibrium method. It is recommended that the colluvial slope stability should be judged by using a variety of safety criterions. The quantitative evaluation on colluvial slope safety is significant to the colluvial slope supporting.

Key words: slope stability analysis, strength reduction FEM, instability criterion, colluvial slope