Stability Calculation and Preventive Treatment of Expressway Slopes
To ensure the safe operation of expressway slopes,based on the stability calculation,this paper analyzed the preventive treatment measure for the slope and evaluated the reasonability of the treatment measure by the deformation prediction according to the deformation monitoring results.The analysis showed that the slope was relatively stable.Still,there was a potential instability risk in subsequent operations if no preventive treatment was taken after the excavation,so,the treatment of slope surface design+lattice anchor was adopted to ensure slope safety.After the deformation prediction,the slope's accumulated deformation was between 15.65 mm and 24.92 mm,with a small deformation rate,indicating that the slope deformation tended to be stable and the preventive treatment measure was effective.