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Methods for computer aiding the configuration and assessment of auxiliary mine transportation means

100%

Tokarczyk J. , Dudek M.

Management Systems in Production Engineering

2020

tom nr 4 (28)

268--275

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.

Impact of suspension and route stabilization on dynamic parameters of self-driven mine suspended monorails

80%

Szewerda K. , Tokarczyk J. , Świder J. , Grodzicka A.

Eksploatacja i Niezawodność

2022

tom Vol. 24, no. 4

617--628

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.

Monitorowanie obciążeń w obudowie łukowej z zastosowaniem przetworników strunowych

80%

Woszczyński M. , Tokarczyk J. , Mazurek K. , Pytlik A.

2019

tom R. 57, nr 1

59--69

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.