Abstract:

  Stability characteristics of high slope stability under uniform load were studied by using the large-scale finite element analysis software ABAQUS, combined with finite element strength reduction method. Slope safety factor, the maximum shear stress, slope changes of displacement and potential slip surface were analyzed when high slope of homogeneous clay has a uniform load on the top of the different positions. The results indicate that stability safety factor is linear with the W/H (W is uniformly distributed along the outer edge of the load to the top of slope distance，H is the slope height); the maximum shear stress and W/H is non-linear; the slope has a nonlinear relationship with W/H in horizontal direction. The potential sliding surface is an arc, with the load from the edge of the slope more far, slip surface away from the edge of the slope is also much more.

Key words: high slope, uniform load, stability safety factor, maximum shearing stress, sliding surface