There is an analysis of the urban development location and the capacity of public spaces for cultural and educational purposes was carried out using the example of cultural centres for Volgograd. The normative and actual material security is determined separately for each administrative district and whole sity. There are suggestions on the advisability of erecting new cultural objects.Dynamics of modern cities is taking into account.

Keywords: planning, cultural centre, cultural and social structure, standard of material security, actual material security

Regular inspection of water supply and sanitation networks helps to reduce accidents that occur in engineering communications. To check the regulatory and technical documentation is recommended to use tele-inspection systems that allow you to get the most accurate information about the technical condition of pipelines in a short time. The article deals with the review and analysis of modern technical systems for tele-inspection and trenchless repair of pipelines. The article considers the requirements of regulatory and technical documentation for such systems. We consider the classification of tele-inspection systems for diagnostics and repair of pipelines by functional characteristics. A review of the current market of domestic and foreign-made technical equipment has shown that all devices for TV inspection of pipeline networks can be classified as follows: push-through TV inspection systems, robot-controlled TV inspection systems and TV inspection systems for trenchless repair. A review of the current market of domestic and foreign-made technical equipment has shown that all devices for tele-inspection of pipeline networks can be classified as follows: push-through tele-inspection systems, tele-inspection systems with remotely controlled robots, and tele-inspection systems for trenchless repair

Keywords: pipeline diagnostics, tele-inspection system, trenchless pipeline repair, visual inspection, repair robot

The article defines the wind load on an open reinforced concrete whatnot located on separate foundations. The wind load on an open bookcase is determined for two wind directions: perpendicular to the axis of the bookcase axis and coinciding with its longitudinal axis. The relationship between the unfavorable vibrations arising from the horizontal vibrations of the structures and the intensity, the spectral composition of the pulsations of the pressure head, and the masses concentrated at the level of each overlap is determined

Keywords: wind load, open whatnot, horizontal vibrations of the structure, composition of the pulsations of high-speed wind pressure

One of the most pressing problems in the oil and gas industry is numerous pipeline accidents that require innovative solutions. This article analyzes a promising method of repair using composite couplings, which include many advantages compared to steel structures. The strength characteristics of the couplings are also given and their installation process is described.

Keywords: Oil pipeline, overhaul, reinforcing composite coupling, composite materials

The article deals with the issues of regulating the stress-strain state of the design scheme of the coating of the demonstration center by combining the geometry of the interface of the crossbar and the cross frame post. The dependence of the distribution of forces on the solutions of the eaves of the roof truss is established.

Keywords: Arched constructions, finite element method, stress-strain state regulation, optimal design

The air basin of cities is subject to significant pollution, including waste gases of power plants. However, they are a necessary element of the life support system of urban areas and cannot be taken outside the city. Therefore, the problem of proper selection of structural elements and operational characteristics of the process and system for reducing air pollution becomes very important. Our scheme of transformation of pollutants within the framework of the physical and energy approach allows to determine possible types of effects on gaseous pollutants, to control their behavior in order to reduce stability and, ultimately, to reduce pollution of the air basin.

Keywords: energetic installations, exhaust gas purification, forced dispersion, gaseous polluting aerosol, property parameters, energy parameters, stability of polluting aerosol

The structures of the external walls of buildings of non-ferrous metallurgy enterprises are destroying under the influence of an aggressive production environment. The results of scientific research on the development of material for partial or complex repair of the external walls of buildings of non-ferrous metallurgy enterprises are presented. The material developed by the author belongs to the group of polymer silicate compositions. It is lightweight polymer silicate shungizit concrete (LPSHС). This material is highly resistant to acidic wet gas production environment, typical for non-ferrous metallurgy enterprises. Building structures made of this material do not need to be additionally protected with chemically resistant materials. Shungizite gravel was selected as a lightweight porous aggregate. This lightweight porous aggregate is obtained by firing a chemically resistant shungite mineral. Several polymer silicate compositions have been selected. The properties of compositions affecting the durability, chemical resistance and energy efficiency of exterior walls have been studied. The article presents the results of comprehensive studies of the physico-mechanical properties of a material, its chemical resistance, and thermal performance. It is also shown that the reinforcement in LPSHC is well preserved. Studies have shown that the use of the developed material can provide high operational reliability of the external walls of buildings of non-ferrous metallurgy enterprises. According to regulated quality indicators and a combination of properties, LPSHС meets the requirements for exterior walls of non-ferrous metallurgy enterprises. The article also provides a list of production workshops for the application of LPSНС. The material can be used in other industries with similar aggressive environments.

Keywords: exterior walls, durability, non-ferrous metallurgy, acidic wet gas production environment, polymer-silicate shungizit concrete, physical and mechanical properties, energy efficiency of wall structures

The technological design of the excavation device, as well as many other construction processes, involves the adoption of a set of decisions necessary for the effective implementation of a project. In view of the many alternative ways of developing a construction process, the question arises of the need for variant design. Variant design is a technical and economic comparison of possible ways to implement this or that building process. The formation of the most efficient fleet of earthmoving and transport vehicles for the constituent entities of the Russian Federation is a rather urgent task. Savings in estimated cost in connection with the adoption of the most effective organizational and technical decisions (hereinafter referred to as OTR) in this case for the useful life of machines varies from tens to hundreds of millions of rubles. In addition to cost savings, the solution to this problem allows you to determine the necessary volume of equipment for the engineering complex.

Keywords: Technological design, foundation pit, organizational and technological solutions, earth moving machinery park

The problems of the operation of buildings on subsidence soils of the Rostov region are considered. A brief analysis of the methods used to consolidate the soil. Concrete examples of the use of cementation and silicatization of soil bases in the development of reconstruction projects for buildings in the cities of Shakhty and Taganrog, Rostov Region are given. An integrated approach to the choice of technology for fixing the soil base of reconstructed objects is proposed, which provides for the simultaneous consideration of the following factors: - basic physical and mechanical properties of soils; - mineralogical composition of soils; - change in the state of the soil base during the operation of the building (local decompression, erosion, chemical and mechanical suffusion, etc.); - chemical composition and groundwater level, forecast of their change; - terrain, the danger of activation of landslide processes; - the presence of retaining walls and other retaining structures in the zone of influence, assessment of the loads on them in the process of consolidation; - the technical condition of building structures of the building, including its underground part and the blind area; - the status of the reconstructed object. With special care and precaution, it is necessary to choose the technological and design parameters of soil consolidation for cultural heritage sites of federal or regional significance; - technical and economic indicators.

Keywords: subsidence of soils, strengthening of soils, fixing of soils, cementation, silicatization, Geology, construction, cultural heritage object

The article considers the main sources of urban air pollution. The growth dynamics of vehicles in the city of Volgograd is shown. The law of the distribution of the concentration of carbon monoxide for a different category of roads (urban, regional and local values), both for the measured and calculated concentration of CO, is derived. It is shown that the concentration of CO on the curb of the roadway of different categories of highways is characterized by a mixed Gaussian distribution.

Keywords: carbon monoxide, category of highways, city significance, regional significance, local significance, main sources of pollution, primary areas, mixed Gaussian distribution, field studies, density function

The article discusses the main problems in carrying out construction work in the cramped conditions of large urban agglomerations. Recommendations for solving existing problems are offered.

Keywords: cramped conditions, urban agglomeration, environmental safety, organizational and technological solutions, environment, technological environment, organization of construction, construction technologies

The article is devoted to solving the current problem - improving the environmental safety of cities by using the specific functions of green plantations in the formation of the green frame belt. Analysis of advantages and disadvantages of existing methodological approaches to formation of "green frames" of cities allowed to systematize, select and scientifically justify estimated criteria taking into account climatic conditions, landscape, impact of anthropogenic factors, efficiency of creation of comfortable habitat and to develop methodology of formation and selection of "green frame" belt of cities.

Keywords: Greening of territories, "green frame" of the city, "green frame" core, "green frame" belt, urban forests, method of formation and selection of "green frame" belt

To assess the impact of various groups of sources of emissions in urban pollution, there is a method that can be called the main one - the assessment of the contribution to total gross emissions. But this method does not take into account the significant features of dispersion of pollutant emissions in the atmosphere, as well as the specifics of the mechanisms of formation of concentrations of pollutants at a specific point in the city and the calculation of complex indicators of the level of air pollution in urban areas. The authors proposed a procedure for calculating the atmospheric pollution index for source groups using the “summary calculations” tool. The calculations were carried out on the licensed software product "Ecologist-city". Based on the calculations, conclusions were drawn on the reliability of determining the influence of various groups of emission sources on air pollution in the city of Krasnoyarsk, based on the assessment of contributions to the total gross emission in the city.

Keywords: atmosphere, air, ecology, ecology of urban areas, environmental safety, summary calculations, IZA

The article discusses the main problems in carrying out construction work in cramped conditions. A survey was conducted among the construction participants, recommendations were given on the selection of organizational and construction solutions.

Keywords: cramped conditions, noise, environmental safety, organizational and technological solutions, point building, environment, technological environment, construction organization, construction technologies, BIM, VR, integrated solutions

The results of a study of the development of a polymer heat-insulating coating for the insulation of heated metal surfaces of industrial and engineering equipment, industrial plants, building structures, working surfaces of pipelines operated at low (up to 1000C) temperatures are presented. The coating was developed on the basis of a polymer binder, which is a mixture of styrene-butadiene rubber and acrylic polymer, hollow carbon microspheres, pigment and water. The use of hollow carbon microspheres in this coating as a filler in an amount of 20.0 to 30.0 parts by weight reduces the thermal conductivity of the coating, compared with the known containing hollow glass or ceramic microspheres.

Keywords: thermal insulation coating, polymer binder, hollow carbon microspheres, thermal conductivity, tensile strength

The results of the development of a polymer coating with high heat-insulating and fire-resistant characteristics containing waste from galvanic production are presented. This coating is designed for thermal insulation and fire protection of concrete and metal surfaces of various building structures and industrial equipment. The coating is developed on the basis of siloxane rubber, K-18 catalyst, hollow carbon microspheres and industrial waste - galvanic sludge used as a flame retardant. The use of hollow carbon microspheres provides an increase in the strength and thermal insulation properties of the coating. The use of galvanic slurry in the amount of 5-15 parts by weight it allows to obtain the effect of self-extinguishing of the heat-insulating coating, reducing the burning time without compromising the operational properties - strength, adhesion, while solving another important problem - the safe disposal of galvanic sludge. Studies have shown that the use of this composition allows you to get a relatively inexpensive, but quite effective polymer coating with good thermal insulation, flame retardant and physico-mechanical properties.

Keywords: polymer coating, siloxane rubber, hollow carbon microspheres, galvanic sludge, thermal conductivity, strength, self-extinguishing effect, safe disposal

The aim of the study was to identify the optimal choice of the set of leading machines according to the ratio of such parameters as "Time" and "Cost." Within the framework of the study, the scheme of selection of the set of machines in accordance with geotechnical and production conditions of the construction area and economic conditions of the potential customer was determined, as well as a table of selection of machines depending on the initial parameters was drawn up.

Keywords: excavations, a set of leading machines, soil category, distance of soil transportation, the volume of the pit, the volume of the excavator bucket, continuity of work, cost, work duration, cars dump trucks

The largest cities of Russia have problems with the development of rapid transit passenger transport. A good solution to the problem is to replace the tram lines with rapid transit tram lines or light rail (LRT). One of the conditions of a light rail transit is to increase the distance between stopping points. A review of the literature shows that the question of the effect of the distance between stopping points on the tram speed is insufficiently studied. The aim of the study is to determine the relationship between the tram speed and the distance between the stopping points of the light rail system. The research method is simulation at the micro level in Aimsun. The study considered the speed limit, stopping time at stopping points, delays due to signalized intersections. Based on the simulation results, a relationship between the tram speed and the distance between stopping points was determined. The obtained relationship is of practical value and can be used for LRT planning and management in cities.

Keywords: high-speed tram, light rail, organization of the movement of trams, speed of communication, stop point, simulation

The article touches on the relevance of the problem of ecology in the world, considers a way to improve the microclimate of the city and individual buildings, residential and public, by using vertical gardening. The main advantages of vertical landscaping of facades are given: increasing the sound insulation of premises, improving the microclimate, reducing the energy consumption of the building, as well as taking into account the process of photosynthesis itself, which supplies the environment with oxygen, and the absorption of harmful emissions by plants. The most striking examples of "green" architecture in the world are given:"Vertical forest" in Milan and "Nanjing Green Towers", as well as the use of a new way to" revive " the environment in Russia and the introduction of regulatory documents regulating environmental requirements for real estate.

Keywords: landscaping, ecology, vertical gardening, high-rise building, eco-friendly skyscraper, aesthetics, "vertical forest"," green " architecture, phytostain, phytocartin, rating system for assessing the sustainability of the environment