This article presents the results of solving the problem of silting of the Krasnodar reservoir for the rational use of water resources of floodplain territories. The forecast of changes in sediment for the future is determined taking into account an increase in the overgrowth of the reservoir, further processing of the coastline, as well as a decrease in afforestation and an increase in cultivated areas in the river basin. Kuban. Given these factors, the increase in sediment volumes in the reservoir alignment will increase annually by 0.13% and by 2036 will amount to 18.01 million m3 per year. The main measures to improve the transport of sediment into the dead volume bowl are considered, and ways to solve the siltation problem by clearing the flooded riverbeds are proposed to be carried out by the method of stirring, since this method is used in reservoirs with flow, because its essence lies in the fact that silt sediments are agitated with the help of a floating dredger with water jets and the pulp is not sucked into the dredger, and suspended sediments are transported by the flow of water into the bowl of the "dead" volume of the reservoir. The use of this method is recommended for economic reasons, since it is 2.4 times cheaper than cleaning with pulp removal. The actual use of the Krasnodar reservoir is currently consistent with the design purpose. Sediment runoff in the river basin Kuban is determined by water erosion. Water erosion is especially pronounced in the mountainous and foothill parts, which is facilitated by the mountain-valley relief and large slopes of river channels. Precipitation falling on the underlying surface, in particular intense downpours, heavy snowmelt, debris material is washed off the catchment area into the river, forming a sediment runoff. An important role here is played by the composition of the rocks that make up the catchment, its afforestation, agrotechnical and water management measures carried out on the catchment area and in the riverbed.

Keywords: siltation, reservoir, water resources, floodplain territories, rational water use, water resources

The article presents an overview of the current situation in the field of energy saving of the Russian Federation. Topical issues of energy efficiency control of buildings and structures as an energy saving tool are considered. The proposed approach allows, while maintaining the General ideology of SP 50.13330.2012 "Thermal protection of buildings", to modify the scale of energy efficiency of buildings and structures, to make it comparable with similar scales adopted in leading European countries. A similar approach to solving this problem is implemented in order to move from the percentage deviation of the level of heat loss (from some basic value) directly to the specific level of these heat losses per unit area. The formula allowing to calculate both normalized and actual value of heat energy consumption for heating and ventilation of buildings is deduced. In the future, the above-mentioned formula is transformed into a formula that takes into account engineering solutions, both with a direct-flow ventilation system and with the use of a recuperative heat exchanger.

Keywords: heat supply, housing and communal services, energy efficiency, energy saving, energy efficiency scale, specific energy consumption, regulatory framework

This article is devoted to the problem of development of damping polymer materials with high damping properties in a wide temperature range. The purpose of this article is to study the loss factor and strength of polymer materials based on ethylene-vinyl acetate when additional polymers in the form of rubbers are added to them. The leading method to investigate this problem is the method of dynamic mechanical analysis, which allows to obtain information about changes in the dynamic properties of polymeric materials subjected to oscillating loads depending on frequency and temperature. According to established experimental dependences, it was possible to define the type of additional polymer expanding the temperature range of effective damping and increasing tensile strength of composites based on ethylene-vinyl acetate. The percentage content by volume of the additional polymer was established at which its efficiency on the dynamic and mechanical properties of composites on ethylene-vinyl acetate basis will be greatest.

Keywords: ethylene-vinyl acetate, polymer, chlorobutyl rubber, nitrile butadiene rubber, strength, damping, glass temperature, dynamic mechanical analysis

The article analyzes the space-planning decisions of dual-use facilities from which we can see their tactical purpose in emergency situations to increase the defense capability of the city and increase the security of living in it. The developed method of expert evaluation of the placement of multifunctional dual-use complexes, which depends on many parameters, is described. Given the above criteria, a system has been developed for a comprehensive assessment of the effectiveness of the deployment of multifunctional dual-use complexes.

Keywords: multifunctional complex, deployment, dual use, Armed forces, defense, construction

" During a long interruption of construction and installation works, as well as under the influence of the external environment on the unfinished construction of building structures, they are subject to a change in their properties and strength characteristics. To solve all problems, it is necessary to conduct a forensic examination in order to identify defects and assess the state of building structures and make decisions on the possibility and feasibility of completing construction work"

Keywords: construction in progress, expertise, defect, building construction, laboratory tests, design documentation, expert

The article presents theoretical studies of the effect of various plasticizers on the mechanical properties of epoxy compositions. Based on this, the method of plasticization of the epoxy polymer ED-22 was chosen using the introduction of modified epoxy resin UP-563, which differs from the previously used modified compositions for repairing automotive vehicles in the field the simplicity of the availability of modifications in the field and as providing the widest range of changes in the properties of the epoxy composition for USAGE field. The scientific novelty lies in the justification for the creation of a new repair composition consisting of ED-22 epoxy-diane resin modified by UP-563 laproxil for the repair of hull and capacitive parts of automotive equipment in the field, which has increased vibration resistance. frost resistance and impact resistance.

Keywords: epoxy composition, epoxy resin, restoration, automotive engineering, body part, chemical modification, oligomer, polymer

This article discusses the calculations of the feasibility study for the expansion of housing construction in Rostov-on-don. The main part of Rostov-on - don, where the vast majority of buildings are concentrated - the city center, residential areas, main production areas, special purpose facilities-are located on the high right Bank of the don. Active formation of new multifunctional planning areas of the city: North, West, North-East. Leventsovsky and Suvorovsky districts are under construction. For implementation of design decisions on development of housing construction in Rostov-on-don there is a need of an economic assessment of possible options that it is necessary to study in pre-project documents, such as the feasibility study of construction of objects.

Keywords: "feasibility study, Economics of urban planning, pre-project preparation, investment efficiency, urban planning, construction Economics, effective design solutions, design, housing construction, housing stock. environmental requirements, construction indu

The authors consider the issue of assessing partial failure in the technical system from the standpoint of parametric reliability. Evaluation of failure behavior is carried out according to such parameters as time between hours to failure and the achievement of goals, risks. Under the risk in this paper refers to the likelihood of a subsequent failure (full or partial) or the transition occurred in full. The authors propose to expand the range of parameters that characterize hitting a failure state by adding characteristics of possible degradation processes and values of destructive environmental factors in the predicted period of continued operation of the object under study. Also, special attention is paid to the fact that the likelihood of partial failure is influenced by factors that can be divided into external and internal, while the internal ones may depend on external ones. Ishikawa diagram shows the dependence of the rate of degradation of the PR on various factors.

Keywords: partial failure, parametric reliability, risk, time of failure degradation, Ishikawa diagram

An approximate method for calculating the temperature field in solids heated by convection and radiation at the same time, when the thermophysical properties of the substance depend on temperature, is described. The method is based on the complex use of linearization functions and methods of numerical analysis. In the paper an example of calculation of radiation-convective heating of an unlimited plate, during which the heat capacity and thermal conductivity of the material change with temperature, is presented. The results obtained are in good agreement with the data of the finite difference method. The proposed method makes it possible to solve nonlinear problems of thermal conductivity with other boundary conditions, since the technique of solving such problems is not fundamentally different from one another. The article was published in the framework of the program of the International Forum "Victorious may 1945".

Keywords: temperature field,radiation-convective heating, thermal conductivity and heat capacity coefficients, linearizing transformation

Underground construction is gaining increasing relevance with the lack of free space on a construction site in dense urban areas. Geological conditions of the place at which it is planned to construct an object, make the task of erecting the underground part of the building is very difficult. However, the available construction technologies allow producing underground work in view of influencing factors. The availability and variety of ways to perform technological processes motivating the building organizations use sophisticated technologies develop. From what factors influenced the decision on the application of poluzakratoi technology is the subject of this article.

Keywords: «Тop-down» technology, cramped conditions, deformed bases, economic efficiency, diaphragm wall

The accumulated experience of the advanced enterprises of the construction industry and numerous developments of design and research organizations are the basis for the transition to full automation of production of precast concrete structures of the new generation, to the creation of automatic plants that perform the entire production cycle (from receiving raw materials to sending products to the consumer). Technical re-equipment provides a significant improvement in the activities of precast concrete plants, but does not create conditions for direct overgrowth. Automation of the process of production of reinforced concrete requires the use of automated tools to control the quality characteristics of concrete products, information from which can be used for optimal production management. In order to ensure the development of production of reinforced concrete products and structures by improving existing and finding new, improved methods of production of precast concrete products, it is necessary to use robotics, computerization and electronics.

Keywords: automation, automation system, dispatching automatic control, improvement of technological lines, organization of construction production, construction, modern technologies, BIM technologies, robotics, electronics, technological re-equipment

The article is devoted to the analysis of the effectiveness of the use of pre-stressed reinforcement in reinforced concrete structures and the use of steel-fiber-reinforced concrete in modern construction. Examples of materials used

Keywords: reinforced concrete, prestressed reinforcement, strength, high-strength reinforced concrete, steel fiber concrete, fiber, reinforcement

Formation of a work schedule with the definition of operating and output values in the application of the integrated technology of manufacture of works on the device of walls and floors of monolithic reinforced concrete, which will determine the profitability, devoted to this article.

Keywords: Complex technology, monolithic reinforced concrete, walls, floors, work schedule, cost

Plasmonic nanoparticles make it possible to localize the electromagnetic field at scales smaller than the optical wavelength. This property is useful for the application of same objects for the creation of nanodetectors, in the processes of energy conversion and storage, in the tasks of data processing and transmission. In particular, the creation of computer chips with plasmonic elements instead of traditional semiconductors will increase their performance and energy efficiency. Our main purpose is obtaining implanted in the matrix of glass the arrays of plasmonic nanoparticles with controlled optical properties. Their properties can be varied by changing the conditions of their synthesis and post-processing. Nanoparticles are created by UV-laser influence on the gold film, precipitated on the glass surface. One of the proposed methods is long-term heating at 300 ̊C of already synthesized samples. This research presents the results of the study of the effect of temperature treatment on the atomic structure of Au nanoparticles. The study of the nanoparticles atomic structure was performed by using EXAFS-spectroscopy at the Au L3-edge. EXAFS-functions were fitted by using Stepwise EXAFS fitting-code, obtained models of the NPs atomic structure were confirmed by using DFT-optimization. The fact, that the atomic structure of NPs before and afted thermal treatment is strongly dependent of the thickness of initial gold layer (6, 10 and 70nm), is established. These differencies can be explainde by different interaction between gold film & NPs and glass matryx.

Keywords: nanoparticles, Au, nanoplasmonics, EXAFS, DFT, atomic structure

Today, catalysts based on zeolites containing transition metal ions are being intensively developed, ensuring the selectivity of the reaction of direct oxidation of methane to methanol. In current work, the X-ray absorption spectroscopy complimented with the structural models obtained in frames of the density functional theory were used to study the dependence of the local atomic structure of copper centers in mordenite type zeolites synthesized by solid-phase ion exchange using CuCl and H-MOR, upon the annealing temperature at different stages of synthesis. The typical Cu – O interatomic distances and the corresponding coordination numbers are determined. The dependence of the fraction of copper ions on the zeolite on the annealing temperature was established.

Keywords: EXAFS, DFT, zeolites, solid-phase synthesis, methanol synthesis