Investigation of activation of base deformations on landslide hazardous slopes with anthropogenic action
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Abstract
The influence of anthropogenic factors on the formation of landslide deformations on the example of slope construction is considered. The role of technogenic factors in activation of landslides is shown. The analysis of the stress-strain state of the slope on the basis of the finite element method is made, as well as a predictive assessment of the stability of landslide-hazardous area in the arrangement of engineering protection structures. Design and construction in landslide areas is related to ensuring the stability of the soil massif, as well as assessing the possible manifestation and activation of natural and man-made factors. The finite element method is the most rational for solving this class of problems. Further development of calculation methods is associated with the expansion of the use of mathematical analogues of soil models based on numerical calculation methods. For such tasks, a model is proposed that allows to take into account both natural conditions and man-made factors in landslide-hazardous territories, taking into account plastic deformation of soils within the system «slope - retaining structure – building». The paper deals with the stress-strain state of the landslide slope and the influence of man-made factors on this process. The simulation was performed using the SATER.SOIL software package.
The results made it possible to determine the zones of plastic deformation of the soil, which made it possible to estimate the slope at all stages of loading, taking into account the natural and complex man-made factors, the degree of approach of the stress state to the limit. The change of the stress-strain state of the soil massif with the use of different structures of engineering protection and their effectiveness within the system «slope - retaining structure – building» is considered.
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