The calculations and assessment of the impact of the built dormitories on the design of the existing building in accordance with the requirements of SP 22.13330.2011 and techniques of the FEM program Plaxis 2012.01 (Build 8962)

Keywords: pile foundations, Plaxis program, Geology

The problem of calibration of a three-axis acceleration sensor is considered. A number of measurements obtained with the sensor at its different orientations in space are used as initial data for calibration. It is assumed that the sensor is stationary for each orientation variant. The measurement data are averaged at each static sensor position, and the averaged results are used as parameters in a system of nonlinear equations that are solved by the Levenberg-Marquardt method. The results of the proposed method in the article are presented in the experiment with a real sensor, which allows to check its effectiveness.

Keywords: three-axis accelerometer sensor calibration, the sensor coordinate system, the coordinate system of the gravitational field, the rotation of the coordinate system, the matrix of coordinate transformation, the correction factor, the average value of the me

The article deals with the idea of developing the social infrastructure of the new microdistrict "Suvorovsky" of Rostov-on-don. Prospects for the growth of the neighborhood, and the opportunity in the near future to become the core of the agglomerations of the city of Rostov-on-don.

Keywords: neighborhood, residential complex, state contract, landscaping, social infrastructure, the core of agglomerations, the project activities

In this paper, samples containing gold nanoparticles (NPs) distributed in different optically transparent media have been synthesized and characterized. A liquid (aqueous) and a solid (porous silicate glass and polymer (polyvinylpyrrolidone)) media were used. The samples obtained were characterized by optical spectroscopy and electron microscopy. The position of plasmon resonance band was analyzed depending on the dielectric constant of the medium.

Keywords: gold nanoparticles, colloidal solution, polymer, porous glass

The article presents the results of studies conducted by foreign and Russian authors on the assessment of urban air pollution with fine dust of natural origin

Keywords: air quality, dust, fine particles PM10, natural origin, atmosphere

The problem of improving the efficiency of construction through the use of advanced methods of labor organization is studied. Proposed improvement works by reducing, modernization of production

Keywords: organization of construction; operational reliability of buildings; efficiency of labor organization

In this article the relevance of development of the wood concrete meeting the modern requirements for an ecological component and energy efficiency is considered. Features of the mechanism of structurization at hydration of the cement knitting and organic filler with use of the X-ray diffraction analysis are shown. Indicators of concentration of basic elements in the cement test without organic filler are defined and at his existence. The comparative analysis of structure of steam solution of wood concrete and structure of solution from quick-hardening cement with use of data of a rastroelektronny microscope is carried out.

Keywords: Ivashchenko Y.G., Laushkina V. A., Timokhin D.K.

The article describes the design solution for the device of enclosing rows of bored piles and pile-anchors, ensuring the stability of the walls of the pit in the construction of structures under construction and excluding their influence on the adjacent structures. The results of calculations of the enclosing series are presented..The article describes the design solution for the device of enclosing rows of bored piles and pile-anchors, ensuring the stability of the walls of the pit in the construction of structures under construction and excluding their influence on the adjacent structures. The results of calculations of the enclosing series are presented.

Keywords: pile a row, the CFA piles-anchors, the fence of the pit

The article considers the aspects of parametric modeling, his key features, and the question of the relevance of this direction in the design of unique buildings and structures. Are presented surfaces that have not yet acquired the mass character of design and erection, or have not been built anywhere else, but have a high potential to become in the future a great adornment of urban development. In construction, a very limited number of thin-walled structures are used: cylindrical, spherical, shallow transfer shells, conical, shells of rotation. This is only a small fraction of the existing variety of geometric shapes developed by geometers, so the parametric architecture has a great potential for application. The finite element method allows modeling objects of a parametric architecture, approximating buildings and structures with rod, plate and shell elements. The parametric architecture expands the scope of the finite element method and allows the creation of unique high-altitude and long-span buildings and structures. However, the finite element library of the software complex requires modernization and expansion to design unique surfaces of the parametric architecture.

Keywords: parametric architecture, parametric modeling and design, surface, shell, shape, curvature

АнглийскийПеревести вGoogleBingThis article is devoted to the development of suhodolnyh pits in the permafrost zone. For the development of fields in the Arctic requires a large amount of sand for engineering training close to roads, well pads, sites for the installation of complex gas treatment, high pressure pump stations, the Central points of separation and other site projects. Development suhodolnyh quarries of sand in the Arctic requires further activities for the preparation of the sand to a condition suitable for construction. Range transport of sand from the quarry to the designed object will be considered acceptable when the object is within 20 km of the planned quarry, the transportation distance is more than 20 km puts an end to the possibility of further implementation of the project and directly affects the net present value of the project. Improvement of technology of development of dry sand in quarries can positively influence the Economics of the projectThis article is devoted to the development of suhodolnyh pits in the permafrost zone. For the development of fields in the Arctic requires a large amount of sand for engineering training close to roads, well pads, sites for the installation of complex gas treatment, high pressure pump stations, the Central points of separation and other site projects. Development suhodolnyh quarries of sand in the Arctic requires further activities for the preparation of the sand to a condition suitable for construction. Range transport of sand from the quarry to the designed object will be considered acceptable when the object is within 20 km of the planned quarry, the transportation distance is more than 20 km puts an end to the possibility of further implementation of the project and directly affects the net present value of the project. Improvement of technology of development of dry sand in quarries can positively influence the Economics of the project

Keywords: permafrost, perennial cryolithozone, quarries, sand, sand, career preparation to sand mining, development of oil and gas fields.production

The article contains material reflecting the prospects of development of hydrothermal resources formation waters of the Azov-Kuban artesian basin.

Keywords: hydrothermal energy, groundwater, methane gas saturation

In the article the algorithm of construction of an array of points, put in correspondence to points of a compartment of a surface is resulted. Calculation formulas for the coordinates of points are shown. The possible cases of the location of the corner points of the array are considered. And the conclusion is made that this algorithm will help in modeling acoustic, optical and other processes.

Keywords: array of points, surface area, algorithm for matching array points, geometric modeling, radix-vector

The article deals with the issues of impact interaction of particles with layers of dispersed material of different thickness. The influence of the interaction velocity and the thickness of the substrate on the appearance and structure of the collision result is investigated. It is established that at low speeds there is a crater formation while the particle is on the substrate surface. With the growth of the interaction rate, the formation of a crown is observed, and particles penetrate into the substrate material. Experimentally determined the values of the velocity and thickness of the substrate, corresponding to the beginning of the formation of the crown.

Keywords: particle, blow, flow, splash, reflection, speed, stream, the bulk material flow, the recovery factor of speed, the substrate

The problems of young families are analyzed. The relevance of the study of the social welfare of modern young families is shown. A cognitive model of achievement and stabilization of the social welfare of a young family was constructed on the basis of the results of the study ""The Life of a Young Family in the Rostov Region"", 2017. It is shown that the basic model of achieving social well-being is a two-loop scheme with positive feedback. Each of the contours of which corresponds to the basic characteristics: socio-cultural and economic well-being. The principal problem of the factor of satisfaction of needs is revealed. The necessity of creating a full-fledged monitoring system of the socio-economic level of a young family included in the social policy framework of the state is shown.

Keywords: young family, social welfare, system characteristic, cognitive modeling, model, two-circuit scheme, feedback

Background: The quality of electricity is one of the main problems necessary for the normal functioning of responsible technological processes in which a slight distortion of the supply voltage can lead to a violation of the normal operation of enterprises. There are several solutions to this problem: uninterruptible power systems, fast automatic power reserve technology (FAPR), dynamic voltage distortion compensator (DVDC). The most interesting solution is the application of dynamic voltage distortion. Material and methods: The principles of constructing a dynamic voltage distortion compensator with multilevel voltage inverters are investigated. An imitation model constructed under the following assumptions is proposed: an ideal case of the main circuit system (without higher harmonics) is considered, the nonlinearity of the transformer is not taken into account, short-circuit currents are absent, only constant load power is used. Assumptions are justified by the fact that in practice their error is no more than 3-5%, which is permissible. The results are obtained by modeling the system in the MatLab 2016b package. Results: A fundamentally new structural and functional scheme of a dynamic voltage distortion compensator with a multilevel system is developed. The requirements for the dynamic compensator of voltage distortion, load, LC-filters, current-voltage transformers and a converter are determined. Simulation of the simulation model has shown that the system works and corresponds to the expected results. Conclusions: The proposed voltage compensation system will solve the problem of the normal functioning of technological processes. The simulation results showed that the declared functional of the DVDC provides compensation of the voltage level in a given range of voltage dips. The obtained results can be used to stabilize the power supply: in the power supply systems of medical institutions, electric transport, critical energy facilities of a high category.

Keywords: Dynamic voltage distortion compensator (DVDC), automatic control system, operation modes of DVDC, model of the DVDC system, multilevel voltage inverter, simulation model, voltage distortion, volt-additional transformer, electric power, voltage failure