Three-dimensional slope failure analysis by the strength reduction and limit equilibrium methods

Arch Action Over an Excavated Pit on a Stable Scarp Investigated by Physical Model Tests

“…Despite the availability of threedimensional computer programs for analyzing deformation and stability in slopes, the calculations require many assumptions with regard to lateral forces, the initial stress distribution and other criteria of the critical slip surfaces which is sometimes lacking (Gri‹ths and Marquez, 2007;Loehr et al, 2004;Ugai and Leshchinsky, 1995;Wei et al, 2009). On the other hand, a two-dimensional analysis for the most critical cross-section will always lead to a conservative factor of safety; therefore, a three-dimensional analysis is not commonly employed for slope stability analyses.…”

Stability Analysis of Slope with Water Flow by Strength Reduction Method

“…On the other hand, for slopes without water, a nearly three-dimensional slip surface was mobilized around the local loading. Wei et al (2009) investigated the failure mechanism of a locally loaded slope with no water. When the loading is small, the slip surface is still basically two-dimensional until the loading becomes large enough to mobilize a three-dimensional slip surface.…”

A New Method for Three Dimensional Stability Analysis of Earth Slopes

“…Wei et al [32] assessed the three-dimensional slope stability model using SRM and LE methods for different conditions. One of the cases studied by these researchers was an earth slope with a height of 6 meters, slope angle of 45 degrees, cohesion of 15 kPa, angle of friction of 10 degrees, and unit weight of 20 kN/m 3 .…”