Isotherm maps of virgin rock temperature in collieries of Katowicki Holding Węglowy

• Autorzy: Cygankiewicz J. , Knechtel J.

Identyfikatory

DOI

10.7424/jsm140401

• Języki publikacji: EN

Abstrakty

EN

Purpose Assessing the level of heat hazard in rock mass. Measurements of virgin rock temperature were made in 89 active workings of collieries located in the area of Katowicki Holding Węglowy. Methods Experimental method – in situ measurements, the results of the measurements are developed with the least square method. Using maps of the coal seams in the collieries, coordinates (x, y, z) of measurement points were determined, and then, by utilizing a surface map, the geodetic height of the physical surface over the measurement points was determined. The next stage was to analyse geological cross-sections; the thickness of stratigraphic layers i.e. overburden, carboniferous rocks and the total thickness of the coal seams located above the measurement points was determined. Coefficients characterising heat transport in the aforementioned types of rock were calculated using the least square method. By re-analysing geological cross-sections we determined the thickness of the previously mentioned stratigraphic layers for the locations, where rock temperature was to be determined. Virgin rock temperature was calculated for five levels in approximately 200 locations of Katowicki Holding Węglowy. Results Using these locations, isotherm maps of virgin rock temperatures in the collieries of Katowicki Holding Węglowy for the following levels were prepared: –450 m, –550 m, –650 m, –750 m and –850 m. Practical implications Preparing climate forecasts for the collieries of Katowicki Holding Węglowy. Originality/ value Developing a method to determine rock temperature in a point which cannot be reached, when values of the temperature in other points are known.

Słowa kluczowe

EN

workplace safety; heat hazard; geothermics; heat transfer; rock temperature; isotherm maps

PL

bezpieczeństwo pracy; zagrożenie temperaturowe; geotermia; przepływ ciepła; temperatura skał; mapy izolinii

• Wydawca: Elsevier ; Główny Instytut Górnictwa
• Czasopismo: Journal of Sustainable Mining
• Rocznik: 2014
• Tom: Vol. 13, iss. 4
• Strony: 1--4
• Opis fizyczny: Bibliogr. 13 poz.

Twórcy

autor

Cygankiewicz J.

• Department of Mining Aerology, Central Mining Institute (Katowice, Poland)

autor

Knechtel J.

• Department of Mining Aerology, Central Mining Institute (Katowice, Poland), tel. + 48 32 259 21 94, fax: [phone]

Bibliografia

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