The Sensibility Analysis Of Slope Stability Based On Stress State Method

The stability of analysis is an important research problem in civil engineering,such as tunnel ahead or underground engineering and so on. In application of practical project at present, There are many varieties of different methods about analysis and forecasting landslide, However, the analysis of the idea is still followed years of history, "Assume the sliding surface," the semi-theoretical spread derived from the semi-empirical method, "Assume the sliding surface" approach, the two most important point is difficult to cover theory and application flaws. One is assumed slip surface points tangent direction shear strength play and shear stress ratio corresponding safety coefficient, the second is the introduction of rigid body slice method hypothesis, focus on extending into the slip surface gravity midpoint, Application of the parallel system of forces between the force balance equation of articles, and then assume that solving a spreadsheet, which is focused on rigid body mechanics, gravity center of mass Office, the basic principles of rigid body has no internal force with paradox.My main job follows three aspects: First, based on the literature referred to the condition that the stress state, application of Coulomb strength criterion, the resulting series of flat slope safety factor calculation, carried out to side Slope stability analysis of the stress state of the process of comprehensive argument; Second, a large number of slope stability and landslide engineering example, the calculation of the slope safety factor calculated results with the literature results were compared each method, qualitative results are consistent; The third is a combination of a typical application example, the various parameters on the slope of vertical and horizontal comparison of the sensitivity of its parameters, based on analytical solutions to slope stability related parameters, to influence the sensitivity of slope stability analysis.