Prediction of absolute methane emissions into roadway workings driven by means of heading machines in hard coal mines

• Autorzy: Turek M. , Koptoń H.

Warianty tytułu

PL

Prognoza metanowości bezwzględnej wyrobisk korytarzowych drążonych kombajnami w kopalniach węgla kamiennego

• Języki publikacji: EN

Abstrakty

EN

The article presents formulae describing the mathematical model and assumptions of a new method of prediction of absolute methane emissions into roadways driven by means of heading machines in hard coal mines, developed on the basis of results of investigations carried out at the Central Mining Institute. The results of verification of the new method against the background of methods developed hitherto were presented and a calculational example was given. The developed new prediction method, in relation to the applied methods, takes into consideration additionally the mechanism of methane emission kinetics, as well as the shape and range of the so-called desorption zone for the roadway working. In the light of investigations carried out the new method of prediction of absolute methane emissions enables a more exact determination of the methane quantity emitted into the driven roadway working (with special regard to the zone located close to the face), what constitutes the basis for appropriate selection of methane prevention means, and thus has an essential impact on the safety of work conducting.

PL

W artykule przedstawiono wzory opisujące model matematyczny oraz założenia nowej metody prognozowania meta nowości bezwzględnej wyrobisk korytarzowych drążonych kombajnami w kopalniach węgla kamiennego, opracowanej w oparciu o wyniki badań przeprowadzonych w Głównym Instytucie Górnictwa. Przedstawiono wyniki weryfikacji nowej metody na tle dotychczas opracowanych metod oraz podano przykład obliczeniowy. Opracowana nowa metoda prognozowania, w stosunku do stosowanych metod, uwzględnia dodatkowo mechanizm kinetyki wydzielania się metanu, jak i określenie kształtu i zasięgu tzw. strefy desorpcji dla wyrobiska korytarzowego. W świetle przeprowadzonych badań, nowa metoda prognozowania metanowości bezwzględnej umożliwia bardziej dokładne określenie ilości metanu wydzielającego się do drążonego wyrobiska korytarzowego (ze szczególnym uwzględnieniem strefy przyprzodkowej), co stanowi podstawę do właściwego doboru środków profilaktyki metanowej a zatem ma znaczący wpływ na bezpieczeństwo prowadzenia robót.

Słowa kluczowe

EN

safety; mining; methane hazard; methane emissions; method of prediction

PL

bezpieczeństwo; górnictwo; zagrożenie metanowe; wydzielanie metanu; metoda prognozowania

• Wydawca: Instytut Mechaniki Górotworu PAN
• Czasopismo: Archives of Mining Sciences
• Rocznik: 2010
• Tom: Vol. 55, no 2
• Strony: 279--294
• Opis fizyczny: Bibliogr. 16 poz., rys., tab., wykr.

Twórcy

autor

Turek M.

autor

Koptoń H.

• Central Mining Institute, Pl. Gwarków 1, 40-166 Katowice, Poland

Bibliografia

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