Stability Analysis of Filled-Slope Reinforced by Frame with Prestressed Anchor-Plates under Static Action

Because of the current situation where stability research filled-slope reinforced by a frame with prestressed anchor-plates lags behind actual engineering application, based on ultimate balance theory, calculation formulas factor under four arc slip surface filled-slopes are derived using improved Bishop method; corresponding search method most dangerous is given and pullout force improved. Based two examples, results calculated proposed algorithm compared those PLAXIS 3D GeoStudio 2012 finite element software, following conclusions drawn. (1) The takes into account friction front rear anchor-plate effect cohesion fill soil in passive earth pressure end anchor-plate, which makes more complete. (2) example 1 this differs from simulated 4.6% 7.1%, respectively; 2 PLAXIS3D 3.2% 4.5%, respectively, can meet requirements. (3) analysis that reasonable suitable for any anchor-plates, it provides some guiding values design practical engineering.