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  • Organization of road construction works in wetlands of Western Siberia

    Discusses actual problems of organization and management of construction works in swampy areas of Western Siberia are Analyzed concrete examples of work. Suggests effective methods of work organization, considering the technological solutions of the industry and economic opportunities provides an assessment of the likely timing and value calculations of carrying out work in the region

    Keywords: organization of road construction; the methods of construction management; construction of roads

  • Multi-layer cable systems — advanced technology in construction of unique buildings and structures

    Modern urban people face many problems of dense city construction. The article gives the modern construction methods research and reveals the technology for solving the given problem.

    Keywords: domed city; atrium; cable-stayed construction; large-span shell; multi-layer cable system; unique buildings and constructions; green construction

  • Control the overall efficiency of construction works

    Discusses the current problems of control of efficiency of construction enterprise of building industry. Focuses on the opportunities for effective assessment of the work by circumstantial evidence. Suggests methods of control through automated systems

    Keywords: organization of construction; quality control; methods of control of the company

  • On methods of analysis of economic activities of construction companies

    Considers the problems of analysis of construction enterprises. Given the understanding of the function, principles, and directions, as well as on effective method of analysis. Economic analysis is an important process in enterprise management, also is one of the most essential stage in economic research.

    Keywords: organization of construction; innovation; methods of company management; project management

  • The method of reduction of terms of construction of an industrial enterprise through the use of new precast-monolithic structures

    Covers the relevant issues of reduction of construction period by using prefabricated structures. The proposed method is confirmed by calculations proving its reliability and feasibility. When developing the method was considered economic component of the design and construction of industrial complexes

    Keywords: organization of construction; modular construction, industrial construction

  • Innovations in the organization of construction of linear-extended objects (roads)

    Article considers actual problems of the organization of the construction of temporary roads and crossings in winter conditions. Displayed an innovative approach in the construction of these linear facilities. We study the timing and resuse used in the construction of roads and crossings.

    Keywords: organization of construction; innovation; road construction; project management

  • Experience in the application of rotary aerators in wastewater treatment plants

    We study the experience of the application of rotary aerators in modern wastewater treatment plants. Determine the type of effective cleaning systems. Shows the changes in the technology of rotary aerators are used in modern cleaning systems, in comparison with earlier samples. A comparison of treatment systems in the U.S., Canada and Egypt, applying the rotary aerators

    Keywords: sewage treatment plants, aeration, construction of treatment systems

  • The use of new large-span structures in modern architecture

    Discusses actual problems of construction of large-span buildings. Studied the experience of construction of Olympic facilities in Sochi. Provides an overview of the positive qualities of the proposed design solutions with technological and economic points of view

    Keywords: organization of construction; capital construction; long-span buildings and constructions, reinforced concrete constructions

  • The question of the service life of asphalt pavements

    Open factors, Nelson influencing the quality and the service life of asphalt pavement. Presents results of a study of dielectric coatings to contribute.

    Keywords: asphaltic concrete, coating, intensity, pothole, drainage, track, speed, PMA, sections, dielectric permittivity

  • Analytical overview of production and use of biogas

    An analytical review of the production of biogas from plant substrates is giventerprise.

    Keywords: biogas, substrate, bioreactor, technologies for biogas production

  • Calculation of the elements of the best available technologies during the reconstruction of the Left-bank sewage treatment plant in the city of Rostov-on-Don.

    When reconstructing left-bank sewage treatment plants, it is proposed to intensify the work of primary sedimentation tanks by including the acidification zone. When reconstructing aerotanks, it is expedient to allocate an anaerobic zone and a nitrification zone. The introduction of projected measures allows to reach the normative parameters of nitrogen and ammonium nitrogen and phosphorus discharge with an increase in the estimated flow rate to 460 thousand m3 / day.

    Keywords: sewage, treatment plants, reconstruction, best available technologies, primary settling tanks, acidification, aerotanks, anaerobic zone

  • Research of lead accumulation in the soils of built-up areas adjacent to Rostov-on-Don

    The soils of the territories adjacent to the city of Rostov-on-Don are studied, characterized by a highly developed transport system. Agricultural land adjacent to the highway is often closed by forest strips. But, large areas of land are not protected by forest strips. A lot of lead accumulates in the soil of open agrocenoses. It is necessary to create forest belts around new highways

    Keywords: soil, iead, mobile forms, gross content, forest melioration

  • Pollution of territories bordering on mine waste and possible solutions to the problem

    The soils of the territories adjoining the waste pits of coal mines are investigated. In the soil, quantities of copper, zinc, nickel and lead were found, more than MPC. Excess of MPC for cadmium is not noted. The content of copper and nickel is 2-3 times higher than their permissible content in the soil, and this situation is observed throughout the study - up to 500 m. A slight excess of the maximum permissible concentration of zinc and lead was noted at a distance of 200-300 m from the waste. It is necessary to restore the territories after the removal of anthropogenic source - waste heaps.

    Keywords: soil, copper, zinc, nickel, lead, cadmium, mobile forms, waste heaps

  • The method of appointment of the composition of the sand mixture for the manufacture of precast concrete products hard pressing with damping additive

    The paper presents the design procedure and the appointment of the composition of the molding mixtures, which is based on computational-experimental approach to the determination of the composition taking into account the quality of the used raw materials and requirements to the properties of concrete manufactured products

    Keywords: Raw materials, grain structure, concrete, svezheulozhennye mix, precast products, hard pressing, block diagram

  • Problems encountered in the restoration of churches on the example of the church in the village of Petrovka

    The article lists problems that were resolved by the restoration of the Church in the village of Petrovka of the Rostov region. There is a brief historical note about the object. Changing the configuration of the building considered over time. The decoration of the temple are described. A brief survey of the temple is presented. In the course of these tests the authorship of the temple is installed, and also its date of construction, materials. Proposals for its restoration are considered. The implementation of the rehabilitation works describes briefly. Methods of the object`s recovery are specified.

    Keywords: temple, recovery, architect I. O. Valprede, decor, plastic facades, eclectic style, constructive solutions

  • Traffic safety assessment on crossings

    In article traffic safety of vehicles at the movement on crossings is considered. Possibility of a road accident is estimated. In article the initial speed, size of a stopping way of the second vehicle, taking into account overall dimensions of vehicles are determined.

    Keywords: street road network, crossing, road accident, traffic safety, initial speed, stopping way

  • Simulation of the problem of duel three persons

    In general, games like duels, in which each of two players has the goal to eliminate the enemy, are quite a popular problem from game theory. The problem becomes much more complicated when you add players. The term ""truel"" we understand the rivalry three players. They are assigned some values of accuracy the probabilities of eliminating the opponent in one shot. At each stage of the game is chosen by the active player (the selection rule active player either randomly or by prior agreement between the players about their participation). The active player chooses an opponent to eliminate or passes the course. Developed mathematical models for different formulations of the conditions of the game (random or fixed choice of the active player). For each model are analyzed based on the probability of winning in the ""truly"" of accuracy, based on randomly generated program values. Comparing analytical solution and simulation, we see that they have the same answers. For large dimensions similar games analytical method requires complex calculations, so an acceptable alternative is the simulation method. Data research nahegelegenen in political and judicial practices, as well as analytical tools for the study of the theory of evolution.

    Keywords: truel, simulation, game duel three persons,Markov chain, variance of natural selection, the matrix of transition probabilities, fundamental matrix, stochastic process, the three prisoners dilemma, game theory, coalition games

  • Architectural typology of children's leisure-educational centers

    In the article the history of development of various types of additional education objects and their current state in Russia is considered, a classification of various elements of the system of basic and additional education of children and adolescents at different periods of time is made. Based on the analysis of modern research on this subject, the main principles for designing volumetric-spatial models of children's leisure-educational centers are revealed. There are several perspective architectural models of children's leisure-educational centers and their main typological features.

    Keywords: Additional education, a children's palace of creativity, an educational center, a leisure center, an architectural model, architectural design, architectural typology, design principles

  • Modern mobile architecture and mobile home

    The article deals with the issues of mobile architecture and, in particular, the types of mobile homes, their features in the modern era. The definition and classification of mobile objects is given: by designation, by functional decision, by the method of movement, by the nature of the erection and by the nature of dynamism, by the conditions of power supply and autonomy, by location environment.

    Keywords: architecture, mobility, mobile architecture, mobile home, modular mobile home, recreational mobile home

  • About the features of techniques of the calculation of eccentrically compressed concrete elements

    We consider eccentrically compressed rod elements of reinforced concrete structures. Problems are solved for the development of methods for calculating the strength of normal sections in the case of eccentric compression of reinforced concrete elements; calculation of the load-carrying capacity of reinforced concrete structures by the example of columns of varying flexibility for ultimate effort. Analytically, a calculation is made, which makes it possible to determine the strength of reinforced concrete structures.

    Keywords: внецентренно сжатые стержни, железобетонные конструкции, прочность, нормальные сечения, колонны различной гибкости, несущая способность, предельные усилия

  • Application aerazione-lighting installation in biological filter

    Examined the effectiveness of using aeration-lighting installation in the process of biological wastewater treatment.

    Keywords: biological filter, biological treatment, energy efficiency, water treatment, lighting, aeroblast, biomass, activated sludge, microorganisms, aeration tank, aerator

  • Influence of various variants of external composite reinforcement on the rigidity of flexible compressed elements

    Comparison of the results of the deformation and stiffness test of flexible compressed reinforced concrete colums strengthening with various variants of external transverse and longitudinal reinforcement by composite materials is given. The influence of the rigidity of the reinforcement elements on the deformation properties of the test samples with a cross section of 250x125 (h) mm is given for the flexibility λh = e0 / h = 20, which were tested at eccentricities e0 = 0; 2.0 cm (0.16h) and 4.0 cm (0.32h).

    Keywords: concrete, reinforced concrete, columns, flexibility, composite materials, reinforcement, strength, deformability

  • The deformation of concrete of short compressed elements reinforced by external composite reinforcement, with three kinds of stress state

    The article presents the results of comparison of the average experimental values of the relative deformations of heavy concrete of class B34-35-εb and εbt, which were obtained by testing short compressed columns strengthening with external composite reinforcement based on CFRP. External transverse and longitudinal reinforcement, as well as types of stress-strain state were varied: conditionally centrally compressed elements (e0 = 0); elements loaded at small eccentricities, ie at e0 = 2.0 cm (0.16h) and large e0 = 4.0 (0.32h). The influence of various variants of composite reinforcement on the change in the stress-strain state of concrete at three values of the axial eccentricity e0 is estimated.

    Keywords: concrete, reinforced concrete, reinforcement, prototypes, composite, compression, stretching, relative deformations