EXPERIENCE OF INFORMATION MODELING OF THE DYNAMICS OF THE DEFORMATION PROCESSES OF THE SOIL MASSES OF THE DOME OF THE DOMESTIC WASTE LANDFILL

Abstract

It is known that subsidence of the dome surface of solid waste landfills is not a natural and expected process, and the dynamics of sedimentation, complicated by the presence of filtrate, has not been studied. The recommended terms of reclamation of closed landfills for different climatic zones, which are 2 years, in the presence of leachate, do not guarantee stabilization of the landfill surface sufficient to move heavy equipment during the formation of the landfill dome during reclamation works.
The need for immediate reclamation in conditions that do not ensure the stability of the landfill surface requires the application of additional compensatory measures for the safety of work, taking into account the dynamic state of its surface. Their development is possible by performing a comparative analysis of calculated and actually obtained data on the dynamics of deformation processes of the dome of the landfill, namely its surface and body, taking into account the multicriteria influence of internal and external factors of manmade and natural nature. Development of compensatory organizationaltechnological and technical solutions to minimize the negative impact of liquid fraction (leachate) in the solid waste on the stability of the landfill dome is possible by predicting physical processes that occur during reclamation using digital information modeling of dome surface stability.
The general method of scientific substantiation and research of factors of influence and compensatory organizationaltechnological decisions of landfill reclamation is based on analysis and synthesis of components of conditional idealized, information model of landfill dome taking into account factors of internal and external influence on its stability, physicaltechnical and organizationaltechnological characteristics.
The experience of information modeling of the dynamics of deformation processes of soil massifs on the example of the dome of the landfill in the village. Pidhirtsi, Obukhiv district, Kyiv region, in order to study the multicriteria influence of manmade and natural factors for comparative analysis of calculated and actually obtained data of deformation processes, as well as scientific substantiation of organizational and technological solutions of reclamation in dynamic landfill conditions.
These calculations are intermediate. They are designed to test the possibility of using the developed model "Reconstruction and technical reequipment of the solid waste landfill №5 in the village. Pidhirtsi, Obukhiv district, Kyiv region. Reclamation of site № 1 "to predict the behavior of the surface and the body of the landfill in the presence of dynamic influences. In the next stages of research, it is advisable to improve the model taking into account the additional identified factors of influence, both in retrospect and at the moment, which will bring it closer to the level of the digital twin.