The parameters of oscillations of the foundations and structures of the dynamic equipment of the new production workshop located in the Kharkiv region were experimentally investigated. For this purpose, appropriate measurements of the amplitude of oscillations in the vertical and orthogonal horizontal directions were performed. To compare the parameters of the amplitudes of forced oscillations and determine the damping properties of the applied rubber spacers placed between the frame and the slides, as well as the quenching effect of the foundation massif, several measurements of oscillation parameters were performed at the locations mentioned above. The amplitude of oscillations of the vertical component of the vibration load on different sides of the rubber dampers was reduced by 2-3 times, the horizontal component was completely attenuated. It was also established that there was no transmission of vibrations to the foundations of the production workshop. The safety of the measured parameters of oscillations from the point of view of long significant unstabilized subsidence of the foundations, both equipment and building, was determined. Recommendations for monitoring are given from the point of view of the possible deterioration of the properties of the used rubber dampers over time.
Formulation of the problem. During the construction of the oil collector, in order to ensure uninterrupted transportation of products, it was planned to lay an industrial oil collector made of fiberglass pipes. In some areas, repeated depressurization of the joints of the fiberglass oil collector occurred. In this regard, there was a need for a comprehensive approach to establishing the causes of the aerial situations. The purpose of the article is to analyze the impact of complex engineering and geological conditions on the durability of the polymer pipeline using the example of an industrial oil collector made of fiberglass pipes of the Anastasiv deposit, located in the territory of the Romen district of the Sumy region of Ukraine. Materials and methods. To achieve the goal, a visual survey of the geological and geomorphological structure was performed, as well as the analysis of the engineering and geological conditions of the territory where the fiberglass pipeline is laid. Soil samples were taken from the place of depressurization of the polymer pipeline joint, and their physical and mechanical characteristics were determined. Modeling and calculation of the stability of the slope on which the depressurization of the joint of the polymer pipeline occurs, were carried out by the finite element method. Results. During the examination of the fiberglass pipeline, negative and potentially negative factors of the engineering and geological conditions influence on the laying and operation of fiberglass collectors were established. It was revealed that there was a discrepancy between the design decision and the actual layout of the fiberglass pipes, which could lead to the occurance of areas of "sag" and, as a result, an increase in the stresses in the pipeline from the backfill load. At the same time, the realization of subsidence phenomena of IGE 5 after laying the pipeline also led to additional non-design stresses. The analysis of engineering-geological and hydrogeological conditions indicates the possible activity of slope processes in the study area, which leads to a violation of the stability of the slope and, consequently, the occurrence of additional displacement and stresses due to,deformation of the soil massif. Scientific novelty and practical significance. The necessity of conducting engineering-geological surveys to assess the impact of complex engineering and geological conditions on the durability of a polymer pipeline is substantiated. The main negative processes and phenomena that led to emergency situations on the territory of laying the polymer pipeline were identified.
Ключові слова : бром, гідрогеохімія, Дніпровсько-Донецька западина, гідромінеральна сировина, нафтогазові родови-ща, розсоли, вуглеводні, тепломасоперенос, пластові води.
Formulation of the problem. The large volume of historic buildings that require major repairs, reconstruction and adaptation to modern use dictates the need to move to faster and more reliable technologies of architectural monuments restoration. In this regard, there is a need for a complex approach during the restoration work. The purpose of the article is to investigate the difficulty of obtaining the correct conclusions about the geological conditions of the building placement as a result of previously unqualified repair works on the example of engineering-geological surveys during the reconstruction of a historic building. Materials and methods. To achieve the goal, the analysis of engineering-geological conditions of the soil base of the building, visual inspection of the building, soil sampling from the pits in the basement of the survey object, as well as determining the physical-mechanical characteristics of the soil have been done. An analytical comparison of these data was performed to understand the constructive solution of the building foundations and engineering-geological conditions of their support. Results. During the working process, the lack of design and executive documentation for the building, as well as unqualified interference in its structure, was revealed. Therefore, one of the key issues was to determine the actual structure of the foundation, as well as the type and condition of its soil base. As a result of a complex analysis of the structural scheme of the underground part of the building, it was established that the basement was equipped after the construction of the building. To determine the structure, depth and condition of the foundation, pits were laid from the frontal and back walls of the building facade, which is adjacent to the site. During the laboratory studies of the soils, physical-mechanical characteristics were obtained for calculating building structures. Based on the data obtained, recommendations were issued for the further reconstruction of a non-residential building of the historical development of the city. Scientific novelty and practical significance. The necessity to research the actual technical state of building structures of a historical building is substantiated to assess the possibility of further reliable and safe operation according to its direct functional purpose, with the development of technical solutions and recommendations for further reconstruction of the building according to the needs of the customer, and ensuring its further uninterrupted and safe ope-ration. The practical application of the proposed results has been substantiated - the need for a complex approach during the restoration work for the further reconstruction of a non-residential building of the historical buildings of the city has been confirmed.
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