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EN
Impact of the method of suspension and route stabilization of suspended monorail on forces loading the roadway roof support system is presented. This is important in the context of possible increasing the speed of monorails during personnel movement. Nature of load and displacement of the route, as well as deceleration of the transport set, with a dynamic excitation - an emergency braking of the transport set, are presented. The results are presented for seven configurations of slings and lashings stabilizing the route. The Head Injury Criterion (HIC), recorded using the Articulated Total Body (HYBRID III) model, during the impact of operator's cabin against an obstacle, is presented in the further part of the article. Analyzes are aimed at developing the guidelines to ensure safety of mining personnel (without exceeding the accepted overloads) and mining infrastructure (without exceeding the maximum accepted load of the roadway support) during operation of the suspended monorail at higher speed. Analyzes are the result of the authors numerical simulations.
EN
Mine transportation of materials in underground mine workings is realized by mine underground railways as well as by suspended monorails or floor-mounted railway. Transportation is realized on tracks placed on the floor of working or on rails suspended to roadway support. Each transport operation must be preceded by a transport design project, made in accordance with obligatory legislation. A part of the project are traction calculations. Their implementation in a computer program allows for minimization of the possibility of errors during the configuration of suspended queues and conducting traction calculations, which consequently leads to improve the level of safety. The article discusses the modular Safe Trans Design system, supporting the design of auxiliary mine transportation. The system has been implemented in the mines of JSW S.A. The assumptions and structure of the system as well as algorithms of operation of the ‘configurator of transportation sets’ and ‘assessment and reporting module’ are presented. The method of creating an auxiliary mine transportation system project is presented. Safe Trans Design system is used in planning, organizational and training activities implemented as part of transport safety management in mining plants. Developed methods can be easily adapted to other legislations of hard coal producers’ countries, where suspended monorails are used in underground auxiliary mining transportation systems.
PL
W artykule zaprezentowano koncepcję pomiaru obciążenia i geometrii obudowy wyro-biska korytarzowego z zastosowaniem przetworników z drgającą struną oraz przetworników linkowych. W ramach realizacji projektu europejskiego INESI przeprowadzono badania laboratoryjne, a następnie badania stanowiskowe kompletnych odrzwi obudowy łukowej pod obciążeniem. Wyniki odkształcenia uzyskane z przetworników strunowych są porównywalne z wynikami uzyskanymi z tensometrów. Zaprezentowano również obliczenia wytrzymałościowe MES, które wykazały dużą zgodność z wynikami badań stanowiskowych.
EN
A concept of measuring the load and geometry of a roadway support with the use of vibrating wire strain gauges and draw-wire sensors is presented. Laboratory and in-situ tests of complete frames of arch supports under load were carried out within the INESI project. The deformations recorded by the vibrating wire strain gauges are similar to those recorded by the strain gauges. FEM strength calculations (which were similar to the results from the stand tests) were also presented.
PL
W artykule przedstawiono zagadnienia związane z projektowaniem i wirtualnym prototypowaniem konstrukcji ochronnych operatorów samojezdnych maszyn górniczych. Przedstawiono wymagania formalno-prawne w zakresie konstrukcji chroniących operatora przez skutkami przewrócenia się maszyny oraz przed spadającymi przedmiotami. Wskazano na możliwości zastosowania oprogramowania klasy CAE w celu oceny konstrukcji chroniących, w obrębie kryterium bezpieczeństwa użytkowników, z zastosowaniem tzw. rozszerzonych modeli kryterialnych. Proces projektowania konstrukcji ochronnej, jej weryfikacja ze względu na kryterium wytrzymałościowe oraz walidacja wyników w postaci badań niszczących ukazują pełną procedurę zmierzającą do przemysłowego wdrożenia wyników prac badawczo rozwojowych.
EN
The problems associated with designing and virtual prototyping of the structures protecting the operators of self-propelled mining machines are presented. Formal and legal requirements for the structures protecting the operators against tilting and falling objects are given. Possibility of using CAE class software in assessing the protective structures regarding the user safety criterion with use of so-called expanded criterial models are discussed. Designing of the protective structures and its verification regarding the strength criterion as well as validation of the results (non-destructive tests) makes industrial implementation of the research project results possible.
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