Often, during engineering and geological surveys, some parameters are not established reliably and require to be clarified by means of inverse calculations, based on the condition of the landslide hazard slope limit equilibrium (a stability coefficient is 1.0). In this case, the design engineers carry out the refinement of the sliding surface position and soils strength characteristics (for example, the internal friction angle and specific cohesion coefficient) by an enumeration method with numerous refinements and calculations. A new version of the LANDSLIP07 software package is developed, which allows to fully automate the solution of the problem of the physical mechanical characteristics refining for a landslide hazard slope. The problem of refining the physical mechanical characteristics of the soil, including the angle of internal friction j and the specific cohesion c, is reduced to solving the inverse soil mechanics problem using the numerical methods of nonlinear programming. This type of calculation (the automation of solving the inverse landslides lithodynamics problem by the j and c values determining) allows to support the design engineer due to quick determining the values of the specific soil cohesion c and angle j of the soil internal friction for a given stability coefficient Ку. These parameters are necessary for the determination of the landslide pressure on the landslide protection structure. Landslide pressure is a key parameter for the landslide protection structures design. A new version of the LANDSLIP07 software package is developed, which allows to fully automate the solution of the problem of the physical mechanical characteristics refining for a landslide hazard slope. The problem of refining the physical mechanical characteristics of the soil, including the angle of internal friction j and the specific cohesion c, is reduced to solving the inverse soil mechanics problem using the numerical methods of nonlinear programming. This type of calculation (the automation of solving the inverse landslides lithodynamics problem by the j and c values determining) allows to support the design engineer due to quick determining the values of the specific soil cohesion c and angle j of the soil internal friction for a given stability coefficient Ку. These parameters are necessary for the determination of the landslide pressure on the landslide protection structure. Landslide pressure is a key parameter for the landslide protection structures design.
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