Improving the method of roof fall susceptibility assessment based on fuzzy approach

• Autorzy: Ghasemi E. , Ataei M. , Shahriar K.

Identyfikatory

DOI

10.1515/amsc-2017-0002

Warianty tytułu

PL

Udoskonalenie metody określania skłonności stropu do zawału w oparciu o elementy logiki rozmytej

• Języki publikacji: EN

Abstrakty

EN

Retreat mining is always accompanied by a great amount of accidents and most of them are due to roof fall. Therefore, development of methodologies to evaluate the roof fall susceptibility (RFS) seems essential. Ghasemi et al. (2012) proposed a systematic methodology to assess the roof fall risk during retreat mining based on risk assessment classic approach. The main defect of this method is ignorance of subjective uncertainties due to linguistic input value of some factors, low resolution, fixed weighting, sharp class boundaries, etc. To remove this defection and improve the mentioned method, in this paper, a novel methodology is presented to assess the RFS using fuzzy approach. The application of fuzzy approach provides an effective tool to handle the subjective uncertainties. Furthermore, fuzzy analytical hierarchy process (AHP) is used to structure and prioritize various risk factors and sub-factors during development of this method. This methodology is applied to identify the susceptibility of roof fall occurrence in main panel of Tabas Central Mine (TCM), Iran. The results indicate that this methodology is effective and efficient in assessing RFS.

PL

Wybieraniu w kierunku od pola towarzyszy zazwyczaj większa ilość wypadków, większość z nich spowodowana jest zawałem stropu. Dlatego też opracowanie skutecznej metody oceny skłonności stropu do zawału jest kwestią kluczową. Ghasemi et al. (2012) zaproponował metodologię określania ryzyka zawału stropu w trakcie prowadzenia prac górniczych w kierunku od pola w oparciu o klasyczne metody oceny ryzyka. Główną wadą tej metody jest to, iż nie uwzględnia ona subiektywnych niepewności na poziomie językowym związanych z określaniem wartości wejściowych charakteryzujących czynniki ryzyka, inne niedociągnięcia to niska rozdzielczość metody, stałe przyporządkowania wag, przyjęcie ostrych granic pomiędzy kolejnymi klasami. Aby usunąć te niedociągnięcia i w ten sposób udoskonalić metodę, zaproponowano nowe podejście do określania stabilności stropu wykorzystujące elementy logiki rozmytej. Zastosowanie logiki rozmytej jest efektywnym narzędziem w przypadku niepewności na poziomie językowym. Ponadto podejście bazujące na określeniu hierarchii procesów i wykorzystujące elementy logiki rozmytej zastosować można do określania wagi poszczególnych czynników ryzyka oraz czynników cząstkowych. Opracowaną metodę zastosowano do oceny skłonności stropu do zawału w polu głównym wybierania w kopalni Tabas Central Mine, w Iranie. Uzyskane wyniki potwierdzają skuteczność metody prognozowania stabilności stropu.

Słowa kluczowe

EN

coal mining; room and pillar; retreat mining; roof fall susceptibility (RFS); analytical hierarchy process; AHP; risk assessment fuzzy approach

PL

górnictwo węgla; wybieranie filarowo-komorowe; wybieranie w kierunku od pola; podatność stropu na zawał; analityczne badanie hierarchii procesów; ocena ryzyka z wykorzystaniem elementów logiki rozmytej

• Wydawca: Instytut Mechaniki Górotworu PAN
• Czasopismo: Archives of Mining Sciences
• Rocznik: 2017
• Tom: Vol. 62, no. 1
• Strony: 13--32
• Opis fizyczny: Bibliogr. 46 poz., rys., tab.

Twórcy

autor

Ghasemi E.

• Department of Mining Engineering, Isfahan University of Technology, Isfahan, P.O. Box 8415683111, Iran

autor

Ataei M.

• Department of Mining, Petroleum and Geophysics Engineering, Shahrood University of Technology, Shahrood, P.O. Box 3619995161, Iran

autor

Shahriar K.

• Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, P.O. Box 158754413, Iran

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)