Dichotomy Slope Optimization Design Methods Based on the Method of Bisection and CSF Technology

The Based on the analysis method of bisection, the critical slip field technology and the residual thrust method of slope ultimate equilibrium,the functional relationship between the slope angle θ and maximum residual thrust Pmax is established. As it can determine the θ value increment size and value range according to identify the positive and negative of equation P=f(θ); then by means of the searching for calculation and discrimination of system,it ultimately can solve the numerical solution of Pmax=0 in a limited height ,security status and engineering geological conditions and find the limit slope angle θ*. Thus it can deal with the open-air high and steep slope optimization design, and simultaneously resolve the design the technology of landslide treatment and the optimization program ,At the same time it has engineering application value.