Aztec Informatica

The STAP - Soil and rock slope stability software enables the stability analysis of slopes in loose soils and rocks.‎ The analysis can be conducted under static or earthquake conditions in both horizontal and vertical directions.‎ STAP FULL also generates the Technical Report in English.‎ DETAILS Standards NTC 2018 Circular 21 January 2019 n.‎7 C.‎S.‎LL.‎PP.‎ NTC 2008 (Technical Standards for Construction) and its integrations D.‎M.‎ 88 + D.‎M.‎ 96 Calculation methods The calculation methods implemented in STAP are: Fellenius BishopJanbu simplified Full Janbu Bell Morgenstern-Price Spencer Sarma Maksimovic GLE (General Equilibrium Method) For all methods, it is possible to perform the stability analysis under static conditions or in the presence of an earthquake.‎ In the latter case, the applicable methods are the pseudostatic method and the dynamic method (dynamic analysis using the Newmark method).‎ Input data Definition of the extension of the slope Definition and characterisation of the stratigraphy Definition and characterisation of the stratigraphy Definition of the fracture surface(s) (circular, logarithmic and generic spiral) Input of the loads on the topographic profile Input and characterisation of the stabilisation measures (retaining walls, bulkheads, tie rods, steps and reinforced soil) Uniaxial compressive strength of rock Intact rock material coefficient Rock mass quality GSI Roughness coefficient JRC Joint strength coefficient JCS Base friction angle Results When the analysis is complete, STAP allows all results to be displayed: Number of surfaces analysed Coefficient of safety for all surfaces analysed Maximum and minimum value of the safety coefficient and sliding surfaces to which they refer For each surface analysed: factor of safety, volume of the sliding surface and points of intersection with the slope; if the surface is affected by stabilisation work, the programme displays the coefficient of safety of all "sub-surface areas" identified by the work.‎ For each selected strip, it is possible to obtain information on: geometric characteristics regarding mass, cohesion and angle of friction, force on the strip, inter-strip forces: Variation of the safety coefficient as a function of the force applied downstream of the surface Variation of the safety coefficient as a function of the groundwater level Variation of the safety coefficient as the ground parameters vary Variation of the safety coefficient as the resistance and position of a generic intervention vary.‎