A monolithic plate is the most reliable type of foundation. The design is selected if the future building or structure will stand on a site with difficult soil. Three variants of organizational and technological solutions are considered - a ribbed foundation plate a solid foundation slab and a box-shaped foundation plate For each technology, two options for reinforcement are considered - steel and fiberglass reinforcement. The analysis of existing technologies for the installation of a monolithic foundation plate carried out in the first section of this work, showed that the use of these technologies is hampered by a number of factors related to the design and technological features of the object being built. The choice of a rational technology for the installation of a foundation plate is carried out by assessing the influence of organizational, technological and design factors. Based on the results of a comparative analysis of the methods for constructing a foundation plate, it was revealed that the most rational in terms of labor intensity and cost for the structure under consideration, a reinforced concrete plate 15.6x544 m, is technology No. 1 - a ribbed foundation plate using MSC formwork and reinforcement with fiberglass reinforcement. The analysis of the dependencies obtained and the calculation of the coefficients showed that the factors affecting the laboriousness of the installation of a monolithic foundation plate can be arranged in the following order in terms of significance: 1) structural characteristics (the presence of ribs, a solid slab or the presence of voids); 2) thickness of the foundation plate; 3) type of reinforcement used for reinforcing the foundation plate; 4) the area of the constructed plates.

Keywords: monolithic foundation plate, steel and fiberglass reinforcement, factorial analysis, labor intensity and cost of construction, work performance

The article discusses the improvement of overhead power line supports (OHPL) by optimizing them and automating the design, including the creation of a OHPL design model as a single system and an algorithm for solving it. Performed the stress-strain state analysis and the optimization of structural forms of support poles, taking into account the requirements of efficiency and manufacturability. Created a system of automated one-stage design of overhead transmission line supports.

Keywords: overhead power line, optimal design, lattice support, design model

The article presents the results of complex geophysical studies to assess the environmental safety of the construction of wind power tower installations in order to prevent their design and construction in technogenic and tectonically disturbed zones on the territories of mountain branches of closed mines in the Eastern Donbass. The brief essence of electrical exploration technologies of electroprospecting method by electrical spatial filtering (MPEF) and electro-potential tomographic sensing (EPTS). The information content of the technologies used in conjunction with standard geophysical methods of electrical exploration (vertical electric sounding and seismic survey method of refracted waves) is shown. The results of interpretation of data obtained in the field are discussed. The results of the research were: - identification of EPTS technologies of structural inhomogeneities of the geological section of coal-bearing deposits with their division into lithological (repetition of the form on the electric profiling graphs shifted by the step of the feed line transfer) and tectonic or technogenic ones (difference electric probe curves at adjacent points) - detailing of destructive zones identified by EPTS using MPEF technology: 1) inversions of electro-profiling graphs registered with multidirectional electric field excitation. 2) displacement of inversion points in places where tectonic discontinuities are present in the coal-bearing column.

Keywords: complex of geophysical research, wind power stations, electrical and seismic methods, coal-bearing thickness, rock formations, tectonic discontinuities, mine workings, interpretation of geophysical materials

The structure of synthesized ferroelectric samples of PbSc0.5Ta0.5O3 after mechanoactivation were studied by means of X-ray absorption spectroscopy(XANES), X-ray diffraction (XRD) and scanning electron microscopy (SEM). Based on the combination of effective experimental methods and computer modeling of theoretical X-ray absorption spectra near the L3 - edge of tantalum and lead was studied character of structural distortions for investigated samples after mechanoactivation.

Keywords: Ferroelectrics materials, mechanoactivation, XANES, defects

Possible ways of quality control of soil stabilization on the ground of geophysical methods have been analytically considered. The article focuses on the findings of the natural observations resulting from the changes of Q-factor value during the injectional soil stabilization in the regime of hydraulic rupture. The outcomes of authors allow to recommend the method of georadiolocation in quality control of soil foundation stabilization.

Keywords: Georadar, soil stabilization, automated diagnosing, “good quality” of electromagnetic field.

Currently, special attention is paid to the existing ecosystem of urban development, special attention deserve wherein resort towns. There is a number of environmental concerns of the KMW region attractive for its natural-resource data, one of which is the noise pollution of the urban environment. The main source of this pollution for the city with the nonproductive functional orientation is transport infrastructure. Formation of cities in the region, which began in the XIX century, did not provide for traffic congestion and power sources of the modern city, so today it is necessary to analyze the noise loads and, if necessary, to organize the work to restore an enabling environment resort towns of the KMW region.

Keywords: Caucasian Mineral Waters, noise, noise impact, sanitary and hygiene regulation, the intensity of the noise, characteristics of the noise

North Caucasian Federal District as a whole and especially-guarded resort region of Caucasian Mineral Waters in particular, belongs to the territories which attract attention from an environmental point of view. Despite the attractiveness of the region CMW(Caucasian Mineral Waters )there exist a number of environmental problems that require serious scientific study and making certain decisions. In this paper, there is an analysis of the current radiation situation in the region of CMW(Caucasian Mineral Waters) and there are outlines of conducted scientific research which have the following main task: determination of regularities of formation of the radiation situation in the objects of environment, building and urban economy of the region; determination of levels of irradiation of the population of the region in different conditions and from different sources; the working-out of specific measures to comply with the radiation safety standards.

Keywords: The region of Caucasian Mineral Waters, radiation characteristics, radiation safety, radon, radiation environment

A modified analog-SSOR of variation type is used for numerical realization of two-dimensional discrete mathematical model of the aquatic environment, which is based on a three-dimensional hydrostatic model. Governing equations of the given model are equations for incompressible fluid, hydrostatic equation and Navier-Stokes equation. Developed model is used to predict the processes of sedimentation and the impact of negative factors affecting the condition of coastal and offshore structures. An algorithm for the minimal residuals modified analog-SSOR method for solving the difference equations is presented in the paper. The results of numerical experiments are presented.

Keywords: Iterative methods, hydrodynamics, discrete model, grid education, Navier-Stokes equation.