The development of underground space in the design of buildings and complexes determines the direction of modern construction. Special attention is paid to the use of new technologies and the organization of production in the development of underground spaces of historically developed urban areas. Constrained conditions of construction in existing urban development represent construction site bounded by city buildings and structures with their subterranean communications with the adjacent road network and land facilities. In such a situation when doing work to minimize the effect of underground construction on the existing development and the geological environment is required when strict compliance with the building regulations. The method "wall in the ground" can be considered important and priority in the technical progress of construction of buried structures.

Keywords: use of underground space in construction, cramped conditions of construction, technology of construction of the underground part of buildings

Increasing the efficiency of management of the activities of the organization is an actual issue for the enterprises of the construction industry in modern society. In a highly competitive environment the entrepreneurs use both innovative production technologies and marketing tools. Improvement and development of organizational behavior of the management system of business structures using the basic principles of marketing is one of the ways to improve the efficiency of any organization including enterprises in the construction industry.

Keywords: Enterprises of the construction industry; models of business structures; types of organizations; market structure, organizational behavior; organization of construction

During the construction or reconstruction of buildings and structures in dense urban areas it is necessary to perform geotechnical monitoring of buildings surrounding buildings, in order to determine the compliance of the projected and actual values of precipitation and their relation to the permissible normative values. The accuracy and the cyclical nature of geophysical measurements should be carried out in accordance with the requirements of SP 22.13330.2011 foundations of buildings and structures. The updated edition of SNiP 2.02.01-83* [2]. The need to perform geotechnical monitoring is also due to the timely detection of unacceptable additional sediment buildings surrounding buildings and prevent the development of defects and deformations caused by these precipitation. Due to the regular monitoring cycles, it is possible to predict the growth of additional sediments or stabilize them. In case of increase of additional precipitation of buildings of surrounding building up to maximum permissible values and availability of the forecast of its further increase it is necessary to carry out actions for their geotechnical protection. In case of stabilization of additional sediment of buildings of surrounding building, implementation of measures for geotechnical protection is not required, which in turn does not entail additional financial and time costs during construction. The article gives an example of geotechnical monitoring on the reconstruction object in conditions of dense urban development. The results of its implementation are given. The analysis of occurrence of additional sediment buildings surrounding buildings. The necessity of implementation of measures on geotechnical protection is defined. The economic efficiency of geotechnical monitoring on this object is given. The results of the study may be useful in carrying out geotechnical monitoring at other sites in dense urban areas, as show that the additional sediment of adjacent buildings may not always be caused only by the construction works. And in case of timely stabilization of additional sediments, it is possible to avoid additional financial and time costs, thanks, inter alia, to the results of geotechnical monitoring.

Keywords: geotechnical monitoring, additional sediment, geotechnical forecast, surrounding buildings, activities

The article presents the results of experimental studies of alternating torsion under a rigid loading regime, during which the features of the behavior of materials under such loading are revealed. The study of deformation diagrams in the sequence of load cycles and under loading with a stochastic sequence of intermediate unloadings of the sample is carried out. In this case, external force and deformation were measured, followed by recalculation into tangential stresses and the relative twist angle. It is established that the hysteresis loop of the first loading cycle differs considerably in shape from the subsequent cycles, but after three or four loads, the dimensions and shape of the loop in all cases stabilize. When loaded with intermediate discharges, small random loops do not go beyond the main (limiting) hysteresis loop, but are inside it, and the inner and outer branches are similar curves

Keywords: torsion, deformable in the elastoplastic region, rigid loading regime, pattern deformation pattern, loading cycle, energy absorbing element, hysteresis loop

The research is related to the specifics of construction project management and its history of development. Computer support projects companies are also described. There are construction projects that were implemented with the use of dedicated software for construction projects support. There is a special emphasis on the products of Primavera. The paper includes a detailed review of Primaver’s achievements in this field and its functionality for supporting construction projects software.

Keywords: construction project management, project management, construction projects, Primavera, Primavera Contractor

The article examines the organizational and technical aspects of detecting leaks and unauthorized taps as an important area of safety of oil pipelines. Priority to the timely detection and prevention of leaks and illegal taps in oil pipelines is the improvement of technical methods of detection.

Keywords: oil pipelines, safety, leakage, unauthorized tapping, warning, technical methods

The paper is considered modelling the process elaboration of a pit for high-rise building in the case of dense urban area. The research is analyzed stress strain state of soil with retaning wall. The authors are developed various design solutions of the retainig wall to decrease of displacement of the nodals in soil finite element model. According the results, it has selected rational design solution of retaining wall.

Keywords: dense urban areas, retaining wall, finite element method, stress-strain state, soil massif

The article suggests the use of agricultural wastes of the shell of the anacard nut, cultivated in the Republic of Cote d'Ivoire, as a sorption material. This carbon sorbent (0.5 g / l) was used to remove heavy metals, namely iron (Fe), C = 1.05 mg / l, aluminum (Al), C = 0.10 mg / l) from production waste water of the machine-building plant of LLC Rostselmash (Rostov-on-Don). According to the experimental data, the efficiency of metal removal depends on the sorption time and amounts to: for iron - from 28.6 to 97.1%, for aluminum - from 10 to 90% (Table 2). The concentration of metals in treated wastewater (iron C = 0.03 mg / l and aluminum C = 0.01 mg / l) corresponds to the norms of MPC (iron C = 0.1 mg / l, and aluminum C = 0.04 mg / l), which makes it possible to discharge them into the city water drainage system. From the experimental data, it was concluded that this material can be used as a sorbent.

Keywords: walnut shell anacard, Republic of Cote d'Ivoire, agricultural waste, carbon sorbent, wastewater treatment, heavy metals removal

The article presents the description of the creation of modern multitube designs of industrial pipes using the self-supporting thermoplastic polymer pipe Furanflex.The variant of the device of separate gas-exhaust trunk at reconstruction of boiler rooms and CHP by the heat-generating companies is offered. There is a specific example which gives description of technology the installation of industrial pipes Furanflex .The detailed description and the analysis of advantages and disadvantages of this technology by means of which it is possible to get rid of a problem of destruction of a chimney owing to influence of condensate is given forever. The article provides a brief overview of the existing alternative methods of protection and repair of chimneys with a brief description of the advantages and disadvantages.Data and conclusions of the presented work maybe interesting for different circle of readers, builders, designers-designers, architects.This article should be of interest to the heat-generating companies

Keywords: chimney, ventilation duct, corrosion, repair, restoration of the chimney, condensate,protection of the chimney, lining, furanflex, thermoplastic liner,corrosion, pipe repair, multitube designs of industrial pipes

The article substantiates the expediency of classification of technical heat-saving methods in the operation of residential and public buildings. The results of the study of the physical nature, efficiency and rational application of these methods were used in the classification according to their main function. The proposed classification of heat-saving methods is recommended for use in the integrated assessment of heat efficiency of residential and public buildings, and in determination of sources of heat savings during their operation.

Keywords: Operation of buildings, heat-saving methods, enclosing structures, heating system, hot water supply, ventilation

The article presents a technique for designing and assigning the composition of the molding mixture, which is based on the calculation and experimental approach to determining the composition, taking into account the quality of raw materials used and the requirements for the properties of concrete products produced.

Keywords: Hard pressed concrete, cement, water content of the mixture, two-factor experiment, rotatable composite simplexummable plan, regression equation of the experiment, quasi-factor analysis

This paper presents an analysis of domestic and international experience in the construction of modern non-rigid pavements. An assessment of existing structures on roads with high traffic volume; designated directory structure of non-rigid pavements, developed on the basis of the research.

Keywords: construction, non-rigid pavement, structural layers, the total number of rated load applications, traffic load class

The paper offers a brief overview of existing 3D printers. Some of them are described in the process of printing out specific real properties. The point is made that the adoption of additive technologies opens up a new era of industrialization in the construction sector. The paper discusses some conventional indicators, which can be used as well to assess the efficiency and environmental safety of additive construction technologies.

Keywords: construction 3D printer, additive technologies, efficiency and environmental safety indicators

The paper brings to the fore the prospects of using 3D printers in construction. Some of them are described in the context of resemblance to modern construction mechanisms. Additive construction technologies are reported to be currently used for adding on structural elements in low-rise and medium-rise buildings. At the same time, the authors argue that all theoretical prerequisites are in place for making multifunctional construction equipment, combining the functional capabilities of modern tower cranes and stationary concrete pumps, to put additive technologies into practice

Keywords: construction 3D printer, multifunctional construction equipment, additive technologies for construction of high-rise buildings

Actual problems of the organization and management of risks and uncertainty in the investment and construction complex are considered. The focus is on risk management in the context of the global economic crisis. The problem of insufficient planning efficiency in the modern construction industry is identified. The aspects of problems of management of construction production in the conditions of crisis are allocated.

Keywords: organization of construction; renovation and restoration, climatic factors

Based on the analysis of published in the open press the results of a large number of scientific studies on the development of reinforcement methods for strenghtening reinforced concrete structures, the rationale for the need to apply and the prospects for the development of a new method for their enhancement associated with the use of composite materials is given. The actual directions of additional experimental studies are proposed with the aim of improving the regulatory framework in Russia in this area.

Keywords: steel, concrete, reinforced concrete, composite material, strengthening, strength, reliability

An approach to assessing the safety of road traffic in the context of emergencies is developed based on an integral indicator of traffic safety, the use of which allows taking into account various factors affecting safety

Keywords: traffic safety indicators, emergency situation, traffic safety assessment, road, integrated indicators

This article deals with the history of the study of engineering-geological conditions of the territory of the Caucasian mineral waters and territory of the sanatorium "red rocks". Technical report provides details on engineering geological research on the site overhaul and reconstruction of the economic bloc, "red rocks"

Keywords: degree, engineering-geological territory conditions, geological structure, mineral water

Investigation of the stability of rectilinear rods, determination of critical loads, determination of eigenvalues ​​and forms using numerical methods and modern software.

Keywords: The stability, critical force, differential equations, square matrix, distributed load, rod of variable cross-section, bending moment, lateral force, moment of inertia

Media technologies in architecture allow creating dynamic, changing images of modern facades of buildings. With the help of media facades, it is possible to single out or visually link several buildings with a single architectural composition. Media facades are an effective means of rapidly promoting an advertising product or rapidly informing the public. The emergence of these technologies allowed to abandon the use of massive advertising structures, replacing them with a media facade integrated into the enclosing surfaces of the building.

Keywords: media facade, mesh media facade, cluster media facade, rack media facade, LED media facade, media technologies in architecture, design of architectural environment, facade transformation, dynamic architecture, facade advertising, interactive screen, light

The problem of formalizing the elastic line of a thin steel strip of great flexibility arose in the process of creating elastic elements with a nonlinear characteristic for use in various kinds of damping devices. Such elastic rods experience large displacements when the material operates within the elastic range, in particular when axial loading in the supercritical region, when the axial load exceeds the Euler force, but in the subcritical region the movements are not significant enough to obtain a regressive-progressive characteristic.The paper investigates the possibilities of softening the elastic characteristics under axial loading in the initial period by applying a rigid cantilever arm mounted on the end of the elastic rod with a vertical load applied to it. Simultaneously, the influence of the vertical force on the elastic characteristic of the circular trajectory is investigated. To formalize the stress-strain state of a thin steel plate of great flexibility, the method of elliptic parameters is applied. The resulting elastic characteristic actually has a regressive-progressive character. The results obtained using the ANSYS computation complex for a system with given geometric parameters correlate quite well with the theoretical dependences derived. It follows from the diagram that the eccentric compression of the elastic element forms a regressive part of the elastic characteristic, and the circular trajectory of the point of application of the vertical force forms a progressive section.

Keywords: elastic line, thin strip, greater flexibility, formalization, off-axis loading, elliptical parameters, regressive-progressive characteristic

It is studied problems of building of buildings with a difficult step skeleton. Prospects and economic efficiency of building of buildings of this kind are considered. One of perspective projects of this kind is in detail described. Building merits and demerits come to light.

Keywords: organization of construction; high-rise housing; reinforced concrete and steel structures

Prospects of a universalisation of civil-engineering designs of modern housing estates are studied. Possibility of erection of the multipurpose universal housing estates having a full infrastructure is considered. Questions of ergonomics, an aesthetics, economy and housing and communal services of ready object are studied

Keywords: organization of construction; high-rise housing; reinforced concrete and steel structures

We study the problem of creating a modern efficient Central heating systems and hot water. The analysis of the existing systems is carried out, the choice of the optimal system in the design of the object is proposed

Keywords: water supply and sanitation, Central heating, infrastructure design

The problem of erection of a combined frame in high-rise housing construction is studied. The issues of installation of structures, space-planning scheme of high-rise buildings. Organizational and economic ways of perfection of technology of high-rise housing construction are offered.

Keywords: organization of construction; high-rise housing; reinforced concrete and steel structures