A methodology for the development of a system of typical environmentally and economically effective road pavement designs is proposed, which allows to optimize the process of designing pavements using asphalt granulate for the design of overhaul of road pavements.redistribution of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.
Keywords: cold deep in-place recycling, pavement, standard design, road, design, construction, asphalt granulate
The article deals with measures to preserve the ground bases of structures in a frozen state. It is shown that the methods of soil screening are cheap and do not use special equipment. These methods use different types of insulation: natural and artificial. The existing technologies of the device of thermal insulation screens on highways and engineering structures are described. It is proposed to replace polyurethane foam with extruded polystyrene foam. These materials are described and their physical properties are compared. The technology of the device of the heat-insulating coating is given.
Keywords: geoplites, expanded polystyrene, polyurethane foam, thermal insulation screen, foundations, permafrost soils, geotextiles,moss cover
A solution to the problem of insufficient transport accessibility of the airport complex "Platov" in the form of a modern transport interchange complex is proposed. Five time models of spatial development of the transport and transfer complex within the airport complex have been developed. Step-by-step modeling from a compact transport hub to a large complex of facilities (bus station, bus station with a small logistics center, complex station, transport and public center and public center with transport and transfer function) stimulates the natural and soft development of the advanced development zone (aeropolis) on the basis of the airport complex "Platov". The analysis of the model range of the time development of the transport and transfer complex will allow to create an object that meets the principles of sustainable architecture.
Keywords: architecture, shaping, functioning, spatial development, transport and transfer complex, transport and transfer hub, transport infrastructure, aeropolis, model, transformation
The current situation in the world related to the pandemic and the new rules of social distancing allowed us to identify the main problems of modern formation of the maternity institutions architectural environment and showed the need for their spatial modernization, taking into account the flexible planning structure. The article discusses individual approaches to creating a comfortable therapeutic environment that promotes social distancing. An «architectural and spatial approach» is proposed, which changes the boundaries of spaces in the following areas of the maternity facility: «entrance», «reception of women in labor», «area for relatives and hospital visitors», «delivery of newborns», «consultations» in the Polyclinic Department of the maternity hospital. The second, «environmental approach», is based on changing the scheme of communication and environmental situations in the internal environment of the maternity facility: the interior environment turns from public to autonomous.
Keywords: maternity hospital, perinatal center, therapeutic environment, social distance, adaptation, modernization
In the given article a regression model of the labor productivity index from the investment dynamics into the fixed capital for the Central Federal District is build. The time series regression model is constructed by means of the trend deviation method. According to the obtained econometric model, a forecast of the labor productivity index for subsequent periods is made.
Keywords: econometric model, forecasting, labor productivity index, investment, regression, time series, trend
The article shows the current problems associated with the development of the northern part of Russia. Large deposits of ore minerals and hydrocarbons are located in the northern regions. The severe climatic conditions of these regions and the difficulties of construction on permafrost soils are noted. Special attention is paid to the relevance of the issue of soil stabilization. The analysis of the degradation of permafrost soils is carried out on the basis of statistical data on the change in the average annual temperature recorded by the Salekhard weather station. It is concluded that when the thawed base is planted, the destruction of structures and man-made disasters are possible. The methods of ensuring a stable frozen state of soils during seasonal thawing are considered. The types and classification of seasonally operating cooling devices are presented. The principle of operation of the presented devices, the scope of application of each type of seasonally operating cooling devices is given.
Keywords: soil, heat stabilizer, heat carrier, cryolithozone, foundation, foundation, bridge construction, monitoring, condensation, freon, expanded polystyrene
With the help of the software package of finitely elementary analysis, a methodology was modeled with subsequent analysis of the performance of the gauge coatings made of reinforced concrete slabs on the basis of earthworks of variable stiffness.
Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production
The paper presents the results of a study of the road network of the Republic of Karelia, identifies the most significant problems of the road sector, assesses the mutual transport accessibility and transport links of all regional centers of the republic.
Keywords: road network, road density, population size, length of roads, road facilities, factor analysis, transport accessibility, operational condition, transport links
The article presents the relevance, main principles, goals and results of the risk-based approach in the activities of the state construction control units on the example of the experience of the Main Department of State Construction Supervision in the Moscow region. The authors describe the methods, methods and modern technologies used by the Main Department of State Construction Supervision in the Moscow Region to implement the goals and objectives that allow improving the quality of control and supervision activities, taking into account the use of a risk-based approach.
Keywords: state control, construction control, risk category, risk-based approach, hazard class, regional state construction supervision, construction management, construction quality problems
The article discusses the natural factors that should be taken into account when designing highways. The following factors have a significant impact on the design of roads: terrain, engineering-geological and hydrogeological structure, climate, etc. The variety of natural factors is taken into account comprehensively in the design. They also take into account the negative impact of road construction on the environment. The terrain has an impact on fundamental engineering decisions, the volume of construction work, and ultimately not only on the construction cost of the highway and transport operating costs. In relation to the design of roads, there are five categories of terrain according to the complexity of road construction. Depending on the geological conditions, sometimes an extension of the highway route is used or expensive engineering measures are provided. It should be borne in mind that the use of the latest materials, road structures and new techniques for the production of construction areas is becoming less and the problems of seasonality of road reconstruction are becoming less relevant.
Keywords: highways, terrain, climate, slope, natural factors, engineering and geological process, surveys, tortuosity, lengthening of the route, road clothing
The possibilities of using the graphic editor AutoCAD in the formation of the readiness of graduates of a technical university for graphic activity are considered. Examples of solving educational problems in the main sections of the discipline "Engineering and Computer Graphics" are given: projection, mechanical engineering and construction drawing.
Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production
The methodology of numerical experiment of laying with closed method by methods of horizontal-directional drilling, brown-screw drilling, forcing, microtonneling has been developed. Some features of the construction of cases for penetration by collectors under existing highways, including general information about the used materials of the cases, are given. A selection of controlled factors and experiment planning, system stability check, results reliability analysis was performed.
Keywords: collector, numerical experiment methodology, microtonneling, horizontal directional drilling, brown-screw drilling, puncture, forcing, motorway, case, reinforced concrete, metal pipes
The results of the development of a sensory subsystem of an ophthalmopneumatic gas tonometer designed to measure intraocular pressure, study the anterior ciliary arteries and measure indicators are presented. After identifying the design features of the device, a structural diagram, an electrical diagram of the subsystem was proposed, a three-dimensional model of the device was made, and the technical characteristics of individual elements were considered. Brief conclusions on the work done are given, as well as the prospects for the development of the project.
Keywords: ophthalmopneumovasotonometer, intraocular pressure, pneumatic system, sensors, range finders, video cameras
The article presents the results of the development of the executive subsystem of a combined medical measuring device - an ophthalmopneumonasotonometer, with the help of which it is possible to measure intraocular pressure and the characteristics of the pressure pulse in the anterior ciliary arteries of the eye. Based on the results of the analysis of the subject area, the author proposed a structural and electrical diagram of the executive subsystem of the device, considered technical solutions of its individual elements.
Keywords: ophthalmopneumovasotonometer, intraocular pressure, executive subsystem, anterior ciliary arteries
The article considers the geological features of the Karasan landslide. The result of mathematical simulation of landslide motion in time is also presented.
Keywords: landslide, landslide slope, mathematical modeling, geomechanical modeling, finite element method, Karasan landslide, anti-landslide protection