No 4 (2016)

Probabilistic treatment of the deviation of real dimensions of bar elements from their nominal values leading to the errors in geometry of structures is presented in the paper. It is noticed that the distribution of errors in framed structures is of normal character.The main principles of statistical modelling of the real form of a space truss and estimation of errors are discussed, and the arguments presented for using the standard deviation as the primary statistical parameter of errors. It is demonstrated that the accuracy of calculation of standard deviations of errors must be accounted for in engineering problems. Based on the numerical values of the chi-square distribution the dependence is obtained between the accuracy of the standard deviation and the sample size for different levels of reliability.

Existing methods of hydraulic calculation of water supply looped networks is considered mainly transmission and distribution lines, without considering dead-and areas. In the design of water supply systems must take into account the area and configuration of the area, population density, height of buildings, standards of water consumption and other parameters that influence the hydraulic calculation of water supply networks. The principle of energy equivalenting allows to unite a plurality of dead-and areas, designating them as a fictitious line subsystem, which greatly simplifies the calculation of the whole scheme of the full length of the hydraulic system.

The combined model of synthesis of routes in which crossing of the conductors belonging to different chains is allowed is offered. For unambiguous stratification of resultant topology in work the unblocking mechanism which allows to increase sharply efficiency of distributing in comparison with classical wave algorithm is realized.

The relevance of reducing the cost of solid mixtures to fill technological voids in underground mining of ore deposits is due to the development of resource-saving and environmental trends in the mining industry.The aim of this work is to study the possibility of increasing the strength of the mixture by the use of liquid tailings multicomponent ores.In the course of laboratory and experimental - industrial experiment investigated the possibility of obtaining hardening stowing mixtures with the use of liquid tailings and ores.It is proved that the use of liquid waste processing processing significantly improves the strength and other technological properties of solid mixtures based on them is greater than the lower grade binder. Clarified the use of dam water as a sealer in the manufacture of solid mixtures for obtaining the same strength significantly reduces the consumption of cement, which is substantial economic effect. Dam water is used after the extraction of these metals, together with other associated commercial products reduces the cost of preparation of solid mixtures. Recommended method of extraction of the waste liquid metals under the influence of an electric field in diaphragm electrolyzers. It is shown that after extraction of the metals from pulpo-shaped waste, the latter represent a promising material for concrete production in the mining industry and construction industry.It is concluded that the use in the compositions of the solid mixtures, liquid waste hydrometallurgical processing significantly improves the strength and rheological properties of solid mixtures based on them due to salts of sodium sulfate, sodium chloride and surfactant water. Rational use of dam water increases the scope of progressive development systems with the bookmark hardening mixtures.

Geomechanical methods to control the deposits of dangerous gases are developed. Conditions for the formation of through and closed local gaz channels are established. It allows choosing efficient positioning of degasification wells, to find and apply the optimal settings. A correlation between residual pressure of methane after degassing events and horizontal deformations of the dangerous layer is holding. Using the results of researches will allow to prevent accidents or to reduce their negative impacts and to increase the efficiency of methane utilization.

The article analyzes the results of geodetic monitoring of bearing structures of the building during the work on strengthening its foundations. The technique works reasonably required accuracy of geodetic measurements. As a result of geodetic monitoring established quantitative and qualitative characteristics of the strain of bearing structures of the building. It is shown that as a result of works to strengthen the soil deformation processes at the base of the foundations of the building were stabilized.

This article is devoted to three components of the organic totality: human, architecture and environment. For many years people have evolved to the environment and were an integral part of it, dwelt in harmony and unity with nature, but due to the current established processes of urbanization there is a rupture of the connection between man and environment. For this reason, urban residents may feel uncomfortable in the urban space and try to move closer to human-nature environment. One of the main tasks of modern architecture is the revival and reunification of previously lost connection of the integral system “man-environment”. Since XIX-XX centuries the rethinking of the relationship between man and nature began and it gave a push to the latest ideas in the field of architecture. It led to the beginning of organic and harmonious fusion of man, architecture and nature. The goal of this article is to identify the fusion characteristics of architecture and landscape to prove necessity to arrange the person to environmental conditions as close as possible and, therefore, comfortable conditions to the natural environment. Analyzed the state of the metropolis’ architecture and the results of environmental impact on the human, there are factors that negatively affect to psychological and physical health in the urban environment. As well the urgency of individual housing is revealed. According to the principles of the organic approach solutions of architectural urban space changes are presented.

The article reviews influence of social and economic factors to development of space-planning structure of the low-rise residential buildings and facilities in Syria, including most recent military and political situation.