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The work is devoted to the important problem of optimization of managerial, organizational and technological solutions of construction and reconstruction of separate grain storages and the management of specialized building enterprise as a whole. Models of the company for the grain storages construction and renovation were designed, analyzed and described: multidimensional organizational structure, computer model of the enterprise. The results of a two-stage construction products cost optimization were presented. The recommendations for the adoption of optimal organizational and technological solutions were developed. The method for justification of financial income level for the grain storages construction and reconstruction using project management principles and provisions of the existing regulations was proposed.

Purpose. Justify the relationship of organizational and technological solutions of the transport facilities construction in the management of the enterprise as a whole and decisions on individual projects and submit this relationship in the form of a multidimensional organization structure. Methodology. Synthesis, analysis, combinatorial and morphological analysis. Findings. The model of business processes relationship, multidimensional organizational structure of such enterprises are developed and analyzed. The possibility of developing a computer model of operating activity of the organization in question is substantiated. Originality. Specific factors of the enterprise structure management and methods of the construction enterprise management are highlighted for the first time, their interaction is described. Practical value. Optimization of organizational and technological solutions, made in the management of the enterprise as a whole and decisions of individual projects.

The aim of this study is to construct experimental and statistical dependencies filtration coefficient of the protected ground, formed by means of horizontal directional drilling, from technological factors. Methodology. Synthesis, analysis, mathematical methods. Findings. Analytical and image filtering coefficient depending on soil following technological factors: duration of injection, which is created using impervious screen bentonite powder concentration per unit volume of hardening mortar, and the discharge pressure (discharge) of the solution into soil. Originality. The regularities of the influence of technological factors (pressure, injection time and the characteristics of injection solutions) on the screen filtration coefficient. Practical value. The practical significance of the results is the development of new technologies to protect the underground space from pollution in soils with solids and lack of impermeable layer on the depth attainable.