Distribution of the methanotrophic bacteria in the Western part of the Upper Silesian Coal Basin (Borynia-Zofiówka and Budryk coal mines)

Abstract Hard coal mines and mining enterprises involved in hard coal exploitation in the area of the Upper Silesian Coal Basin (Górnośląskie Zagłębie Węglowe) are characterised by the presence of natural hazards typical of this type of exploitation. These hazards include the risks related to methane, coal dust explosion, endogenous fires, as well as rock burst and caving of roof rocks. The article presents the results of a taxonomic analysis aimed at determining the similarity of hard coal mines and mining enterprises in Poland in terms of the dangerous incidents caused by the risks related to methane, coal dust explosion, endogenous fires, as well as rock burst and caving of roof rocks. The analysis was carried out for the 2008-2018 data and encompassed a total of 26 hard coal mines and mining enterprises located in the Upper Silesian Coal Basin. The analysis was performed using the k-means method of non-hierarchical clustering. The main objective of the article was to determine homogenous groups (clusters) of mines exhibiting the greatest similarity in terms of dangerous incidents caused by the activation of natural hazards in the years 2008-2018. These data can be successfully used for the development of preventive measures and risk analyses for these enterprises.

Download Full-text

Effect of mine waters from coal mines of the Upper Silesian Coal Basin in the content of Ca and Mg in the catchment of the Upper Odra river

Calcium and Magnesium in Groundwater ◽

10.1201/b17085-14 ◽

2014 ◽

pp. 141-146

Keyword(s):

Coal Mines ◽

Coal Basin ◽

Mine Waters ◽

Upper Silesian Coal Basin ◽

Odra River

Download Full-text

Rockburst of parameters causing mining disasters in Mines of Upper Silesian Coal Basin

E3S Web of Conferences ◽

10.1051/e3sconf/20183603005 ◽

2018 ◽

Vol 36 ◽

pp. 03005 ◽

Cited By ~ 4

Author(s):

Renata Patyńska ◽

Adam Mirek ◽

Zbigniew Burtan ◽

Elżbieta Pilecka

Keyword(s):

Natural Hazards ◽

Seismic Activity ◽

Coal Mines ◽

High Energy ◽

Coal Basin ◽

Structural Units ◽

The Past ◽

Upper Silesian Coal Basin ◽

Mining Conditions ◽

Weak Earthquakes

In the years 2001-2015, 42 rockbursts were recorded in Polish coal mines. For the past 15 years the scale of the phenomena has been similar and ranges from 1 to 5 rockbursts per year. However, the number of recorded high energy seismic tremors of 108 and 109J (E) energy that has occurred in recent years, 2 to 5, is alarming. According to the data, 27 of tremors of E > 108 J energy that occurred between 2001 and 2015 caused 3 rockbursts. Confronting these data with seismic activity from 1989-2000, it should be noted that only 2 events out of 99 rockbursts caused tremors with energies of E>108 J. Against the background of the scale of seismic and rockburst hazards, the geological and mining conditions of the Upper Silesian Coal Basin (USCB) have been analysed, detailing the structural units in which the rockbursts occurred. On this basis, the author characterised factors that impacts on the mining excavations resulting in rockbursts that caused damage on a larger scale. These rockbursts had the characteristics of mining catastrophes and weak earthquakes not recorded in mining statistics of natural hazards of USCB so far.

Download Full-text