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1

Geomechanics of interference between the operation modes of mine working support elements at their loading

Bondarenko V., Kovalevska I., Symanovych G., Sotskov V., Barabash M.

Mining Science

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2018

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Vol. 25

219--235

EN

The problem has been studied of reducing the materials consumption of a combined support in extraction mine workings and increasing their stability in a zone of stope works influence when reused mining of flat-lying coal seams at adjacent mining site. The mechanism has been developed of rock pressure manifestation in the vicinity of mine working and the loading of its support elements on the basis of the following key positions: the formation of zones of unloading and increased rock pressure around the mine working; the formation of areas of weakened and broken rocks, their interaction with support and holistic rock massif; development of stratification along the planes of weakening by thickness of a lithological variety and along the planes of bedding the adjacent lithotypes; partitioning of rock layer into blocks by fractures, by perpendicular planes of weakening and bedding planes, and other factors. The specific tasks have been solved by the finite element method according to the four-parameter spatial optimization scheme of the support interaction with a rock massif. The patterns have been determined of connection between the rational operation modes of mine working support elements and basic geomechanical factors, affecting significantly on the loading of these elements, as well as their interaction with different deformation and force characteristics.

2

Features of iron ore extraction from the Southern Belozerskoye deposit of Ukraine

Bondarenko V., Zubko S.

Cuprum : czasopismo naukowo-techniczne górnictwa rud

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2016

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nr 1

5--15

EN

The mining and geological conditions and mining system of the Southern Belozerskoye iron ore deposit are described. Measurements and analysis of subsidence of the rock mass along the heading of the hanging wall at a depth of 740 m are carried out. Simulations with equivalent materials are conducted and results of modeling are analyzed. Dependencies between room and pillar parameters and the condition and type of surrounding rock are defined. The parameters of the mining system have been rationally justified in weak rock zones. Improved room and pillar mining technology is proposed.

PL

W artykule opisano warunki geologiczno-górnicze oraz system wybierania Południowo-Biełozirskiego złoża rudy żelaza na Ukrainie. Dokonano pomiarów i analizy osiadania górotworu wzdłuż stropu chodnika na głębokości 740 m. Przeprowadzono symulację z wykorzystaniem odpowiednich materiałów i przedstawiono analizę modelowania. Określono zależności pomiędzy parametrami komór i filarów a stanem i typem skał otaczających. Uzasadniono parametry systemu wybierania w strefach słabych skał. Zaproponowano udoskonalony system komorowo-filarowy.

3

Project-oriented management of industrial production of fire and rescue equipment by means of geometric modelling

Bondarenko V., Rak Y. P.

Bezpieczeństwo i Technika Pożarnicza

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2013

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Nr 4

25--30

EN

Objective: The objective of the research is to develop a method based on the geometric modelling for the purpose of improving the effectiveness of fire protection project management in industrial production of fire protection technology systems. Methods: The theoretical inheritance mode of effective management in project-organizational structure of fire protection and specialized technical equipment production using geometric modelling. Results: Mathematical and geometric models of project management describe graphically the process of optimal financial resources allocation in conditions of project-organizational production structure of fire protection and a special type of fire rescue equipment. Methodological basis of the project and program management subject area were enhanced through the introduction of project-oriented management using techniques of geometric modelling in industrial production of fire-rescue specialized equipment. The use of geometric modelling methods in the project-organizational management of specialized technical systems manufacturing and systems engineering provides optimization of whole production process and management automation. Conclusions: Mathematical and geometrical models of resource management in fire protection and industrial production of specialized equipment were developed. The graphical visualization process of effective project management in the allocation of financial resources for the industrial production of special fire-rescue equipment was constructed; The use of geometric modeling methods in project organizational management of specialized systems production provides optimization process of whole production process and management automation.

PL

Cel: Opracowanie metody opartej na modelowaniu geometrycznym w celu zwiększenia skuteczności zarządzania w środowisku projektów ochrony przeciwpożarowej w produkcji przemysłowej technologicznych systemów przeciwpożarowych. Metody: Teoretyczna metoda dziedziczenia skutecznego zarządzania strukturą projektowo-organizacyjną w ochronie przeciwpożarowej i produkcji wyspecjalizowanego sprzętu technicznego przy użyciu modelowania geometrycznego. Wyniki: Modele matematyczne i geometryczne zarządzania projektem opisujące w sposób graficzny proces optymalnej alokacji środków finansowych w warunkach projektowo-organizacyjnej struktury produkcji przemysłowej sprzętu przeciwpożarowego i ratowniczego. Podstawa metodologiczna tematyki projektowej i zarządzania programem została rozszerzona o zarządzanie projektami zorientowanymi na zastosowanie techniki modelowania geometrycznego w warunkach produkcji przemysłowej produktów techniki pożarowo-ratowniczej. Zastosowanie metod modelowania geometrycznego w zarządzaniu projektowo-organizacyjnym produkcji wyspecjalizowanych systemów technicznych oraz inżynierii systemów zapewnia optymalizację całego procesu produkcji i automatyzację zarządzania. Wnioski: Opracowano matematyczne i geometryczne modele zarządzania zasobami do zastosowania w produkcji przemysłowej wyspecjalizowanych produktów technicznych oraz produktów związanych z ochroną przeciwpożarową. Stworzono model graficznej wizualizacji procesu skutecznego zarządzania projektem przy podziale środków finansowych dla warunków produkcji przemysłowej wyspecjalizowanej techniki pożarowo-ratowniczej. Zastosowanie mechanizmów geometrycznego modelowania pozwoliło osiągnąć cel główny – synergię elementów całego procesu produkcji.

4

Profesijna kul'tura inzeneriv i psihologo-pedagogicni aspekti ii formuvanna

Romanovs'kij O., Ponomar'ov O., Bondarenko V.

Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Edukacja Techniczna i Informatyczna

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2006

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T. 1

217-224

EN

In high technology conditions and its constant renovation in order to achieve vital success, professional and career increase, at present day high professionalism in its traditional meaning is insufficient. Integral part of it became not only knowledge, skills and habiits but also value perseption of expert his professional activities, his high general and professional culture. In this article were considered issues of forming professional culture of future engineers. Unfortunately, at present day neither pedagogical theory nor real practice in high school do not give to this problem enough consideration.

5

Formuvanna i rozvitok navicok spilkuvanna u sistemi profesijnoi kul'turi majbutn'ogo inzenera

Ponomar'ov O., Bondarenko V., Snigurova I.

Prace Naukowe Akademii im. Jana Długosza w Częstochowie. Edukacja Techniczna i Informatyczna

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2006

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T. 1

209-216

EN

There are three major criteria of forming and developing of communicative skills in future engineer's professional culture system: knowledge, ability and skills in the sphere of activity; general and professional culture; personal features and qualities. So engineers should involve themselves into the process of education and self-education during all active labor life. According to this criteria National technical university the "Kharkiv polytechnic institute" (Ukraine) has developed a model of engineer of XXI century, prepared and launched an original educational disciplines into educational process. The courses teach future engineers that language and communication, that can be translated and understandable, represents the culture itself.

6

Solving Parabolic Equations by Using the Method of Fast Convergent Iterations

Bondarenko V., Bidyuk P., Bernatska J.

International Journal of Applied Mathematics and Computer Science

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2000

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Vol. 10, no 2

333-344

EN

The paper describes an approach to solving parabolic partial differential equations that generalizes the well-known parametrix method. The iteration technique proposed exhibits faster convergence than the classical parametrix approach. A solution is constructed on a manifold with the application of the Laplace-Beltrami operator. A theorem is formulated and proved to provide a basis for finding a unique solution. Simulation results illustrate the superiority of the proposed approach in comparison with the classical parametrix method.