Chebanov T. Technology for the construction of fast-assembled and collapsible film greenhouses.

The dissertation is devoted to the solution of actual scientific and applied problems on development of technology of erection of modern industrial film greenhouses which are called to provide the decision of a social and food problem of cultivation during a year of vitamin production by development and introduction of new constructive and technological decisions at erection of elements of the bases . In the cost of greenhouse products a significant place is occupied by energy. Almost all participants in this business are looking for possible options, including non-traditional heating sources. The introduction of existing, known energy sources (biogas reserves in landfills and maximum use of waste and non-commercial wood, etc.) does not allow the introduction of such energy reserves and recommendations for the use of such energy by justifying the use of modern greenhouses and determining their rational size. At the same time, it is necessary to develop methods for the construction of mobile prefabricated and collapsible greenhouses to move and bring them closer to energy sources. Within the framework of the developed block diagram of researches the systematic analysis of a condition of questions is executed. The main trends in the development of structures and parameters of modern greenhouses, their engineering and technological systems are considered. It is shown that there are isolated studies of technology and mechanization of construction and reconstruction of greenhouses, which is devoted primarily to third-generation glass greenhouses (according to the author's classification). The construction of modern greenhouses of the fourth and fifth generations is considered very little. There is almost very little research on the technology and mechanization of assembly and disassembly work on film greenhouses. The main architectural design and technological features of modern film greenhouses are considered. The new author's original classification of greenhouses considers their various features that influence the choice of methods of work and determine the features of the technology of construction and installation work. It is shown that the greatest complexity of the work takes place when installing foundations, load-bearing galvanized frame and fencing elements of a special double film with technological equipment to ensure the air layer. A method has been developed and experimental studies of labor-intensive greenhouse construction processes have been performed. Processing the results of the work allowed to obtain correlations of the main technical and economic indicators: labor intensity, duration and cost of work on a number of factors that characterize the design features of greenhouses, working conditions and more. Practical recommendations on improvement of technical parameters of machines and mechanisms for the purpose of reduction of complexity of performance of works are given. existing machines, with refinement of the relevant parameters. Original machines that take into account the structural and technological features of modern greenhouses. The decision is protected by a patent of Ukraine. The practical value of the work is that set out in the dissertation and implemented in a system of practical recommendations and tasks for the development of applied software products that provide the ability to quickly determine (change, modeling, etc.) and choose technology, parameters and performance of construction of film greenhouses. The implementation of the results of work in the practice of construction helps to increase the efficiency of work, reduce labor intensity and duration. As well as improving the quality and safety of work. The approach to the formalization of the apparatus for calculating the parameters of work, implemented in the methodology and models, aimed at minimizing these indicators in the process of technological design, improves the ability to take into account the main design features of film greenhouses, resulting in a projected reduction in project development and work efficiency. . The practical expediency of the developed tools of formalization of processes of construction of film greenhouses in different regions of Ukraine is proved, the engineering technique and information base which allows to carry out calculations effectively and quickly is created.