Theoretical justification of the application of large-sized machinery in the performance of works on the elimination of the debris on roads and supporting territories for emergency site

Problem statement. For dismantling of mass debris, the use of large-sized machinery with special equipment is expedient. The analysis of the performance of works in the elimination of the collapse of buildings and structures suggests that the use of large-sized machinery (bulldozers, scrapers, motor graders, etc.) reduces the time for dismantling debris on roads and supporting areas of site. At the same time, there are no justifications for their effective and safe use in the analysis of debris, there is no possibility to predict the complexity and timing of such work. For these types of work, it is necessary to improve the working equipment of large-sized machinery, in particular bulldozers. To determine the types and number of mechanization allow data concerning the destruction of facilities. The most important element of these machines is the working equipment, the perfection of which determines the efficiency of these units. One of the perspective areas for improving the working equipment of bulldozers is the use of three-section hinged and connected dumps. The aim of research. The purpose of this work is to develop a theoretical model for disassembling debris which accumulates in front of a three-section dumps. Conclusion. The approved calculated scheme and mathematical dependencies to determine the volume of elementary components allowed to propose a viable mathematical model for predicting the size of the displacement prism during the transportation of debris, both with traditional and sectional dumps, and to identify dangerous areas. Developed theoretical model fairly objectively reflects the change of the shape and volume of debris, which accumulate before the sectional dumps and can be used in the engineering forecast of this indicator and the determination of the danger zone when performing work on dismantling debris.