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  • Research of organizational issues of demolition and dismantling of buildings for housing and civil purposes in terms of renovation of urban areas

    The presented study analyzes the issues related to the organization of construction production during the demolition of buildings for housing and civil purposes in the conditions of renovation of urban areas. The main issues in this case are the analysis of the initial data of the pre-design stage, the selection of tools, machines, mechanisms. In addition, it is important to analyze the factors influencing the technical and economic indicators and applied technologies.

    Keywords: demolition and dismantling of buildings, organizational and technological solutions, technical and economic indicators of work, a group of influencing factors, technical condition of a building, construction waste

  • Quality problems of construction and installation works for the construction of the load-bearing frame of large-panel residential buildings of the PIK series

    The purpose of the study, which this article is limited to, is to analyze the violations committed during the installation of precast concrete goods of a residential building, the place where errors occurred and their causes, and analyze the consequences of violation of the technology for erecting the supporting frame of a residential large-panel building. To achieve this goal, it is necessary to study and analyze the main technological actions and in the process of operational quality control, to identify the places of occurrence of technology violations.On the example of a large-panel residential building, the problems of the quality of work during the construction of the aboveground part of the building are considered. The drawbacks of the constructive solution of external wall panels and joints between them are revealed. The main mistakes in the production of work are considered, at what point in the production of work they arise, and what they will lead to in the future. An example of operational construction control of the installation of load-bearing structures of a large-panel residential building is given.An analysis of errors in construction and installation works was carried out, conclusions were drawn and proposals were made to improve the quality of work during the construction of a large-panel residential building.

    Keywords: panel house building, quality of construction and installation works, PIK, construction of residential buildings, violation of technological processes, production, construction, quality control

  • Logistics of construction production: problems and solutions

    This article discusses logistics systems, problems existing in logistics, presents ways to solve these problems. The field of logistics includes almost all areas of production of each enterprise, such as commercial activities, transport management, information support and others. Construction enterprises should be most interested in the efficiency and rationality of the work of logistics, since it is one of the largest subjects of final consumption of material resources. However, there are logistics problems in the construction industry, but to avoid them it is necessary to understand the ways to solve them, which are described in this article.

    Keywords: logistics, logistics system, construction industry, construction company, resource, integrated management, logistics problem

  • Simulation of the design activity diversification of innovative enterprise

    In modern construction production, the volume of management, technical, economic and legal information has increased significantly. This increase relates to the design of buildings and structures, to the documentation of construction processes, as well as to the obtaining of permits and the assessment of compliance with the requirements of technical regulations. The reason for this growth is the widespread use of digital technologies by design, construction, regulatory and Supervisory organizations. The purpose of the work is to systematize and synchronize the documentary support with the stages of the life cycle of capital construction projects from the initiation of the capital investment project to the commissioning of the capital construction project. As a result of the formalization of the system-forming principles of documentary support for each stage of the life cycle of the capital construction project, the problems of documenting the construction industry are formulated: first, the need to automate the filling of standard forms of primary accounting and reporting, second, the improvement of information transfer and storage technologies, third, ensuring reliable protection of information that describes the processes of construction of buildings and structures. These problems should be solved in accordance with the national legislation of urban planning, approved standards of technical regulation and the current regulations for the technical safety of buildings and structures.

    Keywords: documentary support of construction, life cycle, capital construction, capital investments, direct investments, design of construction projects, construction and installation works, regulatory and technical support, information

  • Best available techniques of decrease dust emissions into the atmospheric air applicable in various industries

    The article provides an overview and analysis of the best available techniques (BAT) for reducing dust to the atmosphere from enterprises of various industries (mining, fuel industry, ferrous and nonferrous metallurgy, building, livestock production). Dust has the property to settle and adsorb, affects the state of the environment and human health. These factors determine the importance of introducing dust reduction technologies. Methods generated applicable and branch, as well as the main factors limiting the applicability of technologies. Recommendations proposed to improve the implementation of the best available techniques.

    Keywords: atmospheric air, dust, best available technique, industry, dust removal equipment

  • The use of BIM-technologies in the design and reconstruction of buildings and structures

    The article is devoted to development of information modeling technologies in Russia. The possibilities of using 3D-models, their advantages and disadvantages are conserned.

    Keywords: Information modeling, engineering, building operation, real estate life cycle

  • Methods for improving of energy-effiiciency of buildings

    The article is devoted to the methods for improving of energy-efficiency of buildings. The article discusses the main facilities affecting the energy-efficiency of the building, ways to minimize energy losses.

    Keywords: Improving of energy-efficiency of buildings, energy losses minimization, efficiency class, energy consumption, actions to reduce resource consumption

  • On the problem of increasing the severity of occupational injuries in machine-building enterprises of the Rostov region

    The article deals with the question of injury to the enterprise "Rostvertol" for the period from 1999 to 2010. Discusses some indicators of the status of labour conditions and safety of employees. The analysis of data on the number of injured in accidents at work by gender, age and length of service in the organization. As well as the number of injured by type of accident and by profession. Analyzed data on the number of victims for reasons that have led to an accident in the workplace. On the basis of the study there are several main reasons. Such as the unsatisfactory organization of work and production violation of labor discipline.

    Keywords: labor protection, labor conditions, injury, accident, industrial injuries, mechanical engineering enterprises mechanical contact

  • Analysis othodopererabatyvayuschih plants in Europe

    The article is devoted to acquaintance with foreign ways of recycling and use of secondary resources. The article also discusses the projects of landscaping plants.

    Keywords: waste, secondary material resources, landscaping, recycling, electrical energy, solid residue, chemicals, tightness, burning, filtration, organic matter, decomposition, anaerobic bacteria, energy efficiency, emissions

  • Optimizing sorting line woodworking enterprise through the use of dual-mode operation

    mathematical models, optimizing the cost of sorting of wood, provide a rationale for dual-mode operation sorting line woodworking enterprise

    Keywords: sorting line, round timber, mathematical models, forest drives

  • Optimizing the number and range of the PWG in view stable operation of the gas pressure regulator

    In modern conditions developed and used hydraulic calculation of gas networks program. With them, you can get the pressure value at the nodes of the distribution system of gas supply, costs, and gas velocity in the settlement areas. But do not count in these economic aspects, ie, It is not determined the most economical option, which can be obtained by optimizing the individual characteristics of the gas network. These characteristics in the development of the concept of gas supply is a rational distribution points gas reduction and determination of optimal kolichestva.Priveden calculation of the optimal number of the PWG and the optimal diameter of individual sections of the network of medium pressure gas pipelines to ensure the best economic performance timing system. Defined pressure regulator bandwidth capacity for its stable operation. To determine the effect an increase in the inlet pressure on the diameter of the pipeline.

    Keywords: optimum range, the optimum load, optimization of pressure, the diameter of the gas-supply circuit, the hydraulic calculation capacity pressure regulator.

  • Hot powder material, dope the ferrotitanium, based MXA chip D16, its structure and properties

    Considered hot-powder materials obtained by the joint mechano-chemical activation of chips D16 ferrotitanium powder in a medium saturated aqueous solution of boric acid with the addition of aluminum powder. The technology includes: mechanochemical activation composition; cold pressing; heating in air, and hot stamping. Investigated the mechanical properties and structure of the obtained hot-materials. Advanced technology allows to obtain a material with high values of strength and hardness.

    Keywords: mechanochemical activation, milling, chips D16, ferrotitanium, hot-powder materials, agglomeration

  • Study of production company activity in the market conditions

    the article deals with the attempt to reveal the trends in influencing of technology innovations on the economic growth of companies. The successful activity of a company in the market conditions depends on the development level of its innovation activity. The activity of a production company is studied and the subprocesses of its degradation and positive development are distinguished. The authors introduce the definitions and illustrate the spirals of degradations and system development. It is proposed to ensure the activity of the production company due to improving of organizational management and human recourse development. The key role in breaking of the vicious circle of the company development is played by the knowledge component.

    Keywords: economic growth, innovations, spirals of degradation and development, human resource management

  • Analysis techniques and methods to create digital models of the human figure, taking into account specific situations

    This paper analyzes the currently used techniques and methods of 3d technologies provide input for the design of clothing. Revealed their strengths and weaknesses, as well as the inability to use for the design of adaptive clothing for people with reduced mobility, to move from the use of wheelchairs. Identified requirements, allowing to develop a new approach to provide input for the design of adaptive clothing for people with reduced mobility.

    Keywords: adaptive clothing, digital mock-figure, three-dimensional scanning, technological complex, wheelchair

  • Analysis of information flows and improvement of management and technology reliability of railway transport enterprises

    The article is devoted to problems of development of railway transport enterprises in the modern period. The author studies information flows determined by vicious Knall circles and mechanisms of positive development based on determining enterprise growth factors. It is suggested to consider the decision making procedure relating to development variations with provision for criteria of railway transport enterprise functioning

    Keywords: railway transport enterprises, Knall circles, management and technology reliability, effective functioning of railway transport industrial facilities, optimal management of railway transport enterprise functioning

  • Theoretical bases of construction of regional monitoring systems

    Abstract: The article describes the theoretical and practical bases of formation of a regional system of monitoring technospheric security. Author's concept of a systematic approach to the solution of important scientific and technical problems. In particular, based on the literature review and the results of their own research found that for the purposes of implementing and monitoring the status of long-term forecasting of health and safety it is logical to apply the structure of the monitoring function of the feedback and the integrated forecasting, constructed using the principle of synergy of the elements.

    Keywords: territorial monitoring system, a comprehensive analysis of the system, the synthesis of elements, synergy, prediction, dynamics

  • The heat losses of steam lines in the deterioration of insulation properties in process of using.

    This article is devoted to the issues related to energy saving in extraction of petroleum with high viscosity and bitumen. The author identifies the shortcomings of existing methods of thermal insulation of steam lines. The article contains the calculation of the specific heat loss of steam pipelines with polyurethane insulation. The calculation is considering an influence of the thermal destruction on the coefficient of transcalency of insulation.

    Keywords: steam pipe, heat losses, polyurethane insulation, mineral wool, thermal destruction, petroleum-producing

  • The usage of the parametric methods of statistics in the oil field equipment diagnostics

    The methods of the diagnostics and oil-and-gas installations state analysis reliability increasing based on usage of the parametric methods of statistics are discussed in this paper. The variance analysis of the mechanical properties of the pump rods made of normalized steel is given in this paper (according to the data of the manufacturing plant for the period of 10 years). It is found that breaking point and yield stress are distributed with the truncated normal laws in the region of minimum values. The obtained average values and variation coefficients of the mechanical properties within the steel grade permit to calculate the statistically significant changes of the mechanical characteristics. The correlations between Vickers hardness and breaking point (Vickers hardness and yield stress) in the case of steels produced in the Russian Federation for the pressure-operated vessels are also presented in this paper. These correlations permit to determine the strength characteristics with the relative error of 12% according to the hardness value. In the case of transferring the obtained correlations on the steels produced in Japan the systematic underestimation of the yield stress is 0,85 fold with respect to the value given in the certificate. The factors that influence on the microanalysis sensitivity and accuracy are revealed, the optimal scanning electron microscope mode and research conditions for the chosen patterns are also determined. Evaluation of the systematic inaccuracy of determining the carbon content in the steel is obtained in this paper. It is found that the measurement error for the scan area from 3 x 3 to 20 x 20 mm and accelerating voltage from 10 to 15 kv is minimal. The usage of the obtained results permits to increase the validity of the findings in the diagnosed installations condition evaluation and determining the conditions of their further exploitation.

    Keywords: diagnostics, oil field equipment, parametric statistics, variance analysis, precision of measurements, mechanical properties, microanalysis

  • Scientific and technical support for closure of unviable coal mines on the basis of systematic analysis of information

    Abstract: The article is devoted to the description of the results of scientific research in the field of substantiation of the programme of action in the restructuring of the coal industry. The main attention of the authors focused on ensuring the environmental security of organizational and technical measures. It is shown that the goal of environmental protection on the territory of the liquidated mines can only be achieved when forming the production program considering the results of a comprehensive study of the object and its relationship with the external environment (geo-environment, groundwater and surface hydrosphere and atmosphere) with using theories of system analysis and prognostics. In particular, based on the analysis of scientific publications on the subject and the results of their own research to determine leading factors of negative impact on life safety of the population and the requirements of the forecast system. In the final part of the article provides information on the implementation of the methodology of research into practice.

    Keywords: scientific support, liquidation, coal mine, methodology, system analysis, prognostics, coal-rock massif, environmental safety, simulation

  • Evaluation of the payback period of gas-equipment taking into account changes in the reliability of methane-diesel vehicles

    In the article presents an analysis of changes in the flow of failures of trucks with diesel and methane-diesel engines. As a result of analysis revealed a change in the reliability of diesel cars converted to work on compressed natural gas. This led to a change in their effective operation because of the increased amount of downtime to repair. Another reason of the decline in effective work vehicles - reduction the carrying capacity, because of the need to transportation a extra weight in the form of compressed gas cylinders. These factors directly affect the final cost of transportation of cargos and payback period of the gas equipment. As a result it was proposed to take into consideration the change in the reliability of methane-diesel vehicles in the formation of cost transportation cargos and payback calculation of gas equipment.

    Keywords: Methane-diesel vehicles, gas equipment, time to failure, performance truck, the formation of cost transportation cargo, the payback period

  • The method of calculation of efficiency of thermal secondary energoresursov without changing the aggregate state industrial wastewater

    The relevance of this article stems from the situation in the energy sector. For issues of a more efficient use of the thermal capacity of industrial wastewater this article describes the method of determining the efficiency of heat utilization of industrial wastewaters produced during the implementation of thermal processes of service enterprises, as secondary energy. Conducted system analysis of the technological regime cards washing clothes in order to identify the energy potential of wastewater. Based on the analysis of the conditions of production of thermal equipment is composed of a heat balance, thermal process equipment, the methods of determining the heat capacity of industrial wastewater and the amount of saved fuel by use of this energy potential. As the calculation of the financial cost of additional heat exchanger regenerative type, the use of which allows to implement a system of heat utilization of industrial waste water as the heating fluid.

    Keywords: Energy efficiency, heat balance, energy, vapor, liquid, sewage, heat capacity.

  • Implementation of the methodology for calculating the number of process routes in the repair units of the car on an actual technical condition

    This article presents an example of two-dimensional implementation of the optimization calculations for the air leak in the top dead point of the engine and the oil pressure in the oil line. Calculation optimization of complex repair works in the form of an algorithm of the iterative optimization process. Defined optimization criteria for this batch of units of the car. The calculations are performed for all the investigated party repair Fund of the engines. By optimizing the number of process routes decreased by one set of repairs.

    Keywords: repairs on an actual technical condition, repair works, pre-diagnosis, optimization, multidimensional taxonomy, the Manhattan metric

  • The influence of drivers age on important professional and physical characteristics

    The process of the formation of important professional and physical characteristics of drivers concerning their age in order to increase automobile operation efficiency based on the forecast of driver’s behavior while driving.

    Keywords: drivers safety, professional and physical characteristics, automobile operation efficiency, driver’s age, traffic safety

  • System formation fuel consumption of special purpose vehicles of the airports

    "Today special motor depots in the airports are solving the problem of rationing fuel consumption of special cars. During operation, special vehicles are affected by various factors.Fuel consumption of special vehicle is made up of fuel consumption primary and secondary engines. Factors that affect fuel consumption are classified according to the following classification: controllable factors, partially driven factors considered factors. Localization of the formation of fuel consumption is made. Selected only the most important factors affecting fuel consumption. The result is a system of formation of fuel consumption, taking into account the main factors affecting the fuel consumption of a special vehicle in operation."

    Keywords: Fuel consumption, special purpose vehicles of the airports

  • The distribution of time intervals between applications for conducting autotechnical expertise

    Ensuring road safety a vital issue for many countries, and Russia no exception. To reduce the number of road accidents, you need high-quality and comprehensive investigation to identify the causes and guilty. The article discusses the evaluation of the expert services as a queuing system. The empirical distribution of time intervals between applications for conducting autotechnical expertise.

    Keywords: queueing system, distribution, accidents, expert, service applications