Causes, mechanism and environmental impacts of instabilities at Himmetoğlu coal mine and possible remedial measures

2001 ◽  
Vol 40 (6) ◽  
pp. 769-786 ◽  
Author(s):  
Reşat Ulusay ◽  
Candan Gökçeoğlu ◽  
Harun Sönmez ◽  
Ergün Tuncay
Keyword(s):  
Environmental Impacts ◽  
Coal Mine ◽  
Remedial Measures

Reducing life-cycle environmental impacts of coal-power by using coal-mine methane

2012 ◽  
Vol 37 (9) ◽  
pp. 1044-1058 ◽  
Author(s):  
Anna Śliwińska ◽  
Krystyna Czaplicka-Kolarz
Keyword(s):  
Life Cycle ◽  
Environmental Impacts ◽  
Coal Mine ◽  
Coal Mine Methane ◽  
Coal Power

Analysis of slope stability at Goonyella Mine

1981 ◽  
Vol 18 (2) ◽  
pp. 179-194 ◽  
Author(s):  
B. G. Richards ◽  
M. A. Coulthard ◽  
C. T. Toh
Keyword(s):  
Shear Strength ◽  
Numerical Methods ◽  
Coal Mine ◽  
Stress Relief ◽  
Dominant Factor ◽  
Remedial Measures ◽  
Laboratory Studies ◽  
Planar Surfaces ◽  
Factors Influencing ◽  
Significant Factors

Since the commencement of mining at the strip coal mine at Goonyella, Queensland, Australia, serious stability problems have been experienced in both the spoil piles and the highwalls. A collaborative investigation was commenced in 1974 and the significant factors influencing stability have now been defined. This paper outlines the results of field and laboratory studies associated with the investigation and describes the various numerical methods used to analyse stability. The main conclusions, which are similar for both the spoil piles and the highwalls, are that the failures generally occur along two or three planar surfaces; that the shear strength in the basal areas is controlled by the sensitivity of the materials to moisture and shear strain prior to failure; and that tensile cracking due to stress relief and blasting is the dominant factor in the upper or escarpment areas. Possible control and remedial measures are discussed briefly.

scholarly journals Implication of Mining to Health in Maiganga Coal Mine, Gombe State, Nigeria

2021 ◽  
pp. 4-14
Author(s):  
Engr. Amosu C.O. ◽  
◽  
Enitan C.S.A. ◽  
Eniola C.S.A. ◽  
◽  
...  
Keyword(s):  
Environmental Impacts ◽  
Coal Mine ◽  
Mining Industry ◽  
Well Being ◽  
Toxic Substances ◽  
Mining Communities ◽  
Mining Sites ◽  
Living Things ◽  
High Concentrations

Operations of mining are large industrial scale in nature, with significant environmental impacts. The mining industry generates and produces wastes containing high concentrations of metals and metalloids which are highly toxic and destructive to the immediate landscape and environment. In addition, the continued use of the traditional methods of mining intensifies the emission of toxic and products that are not friendly to the ecosystem.. Even regulated and controlled mining sites release toxins into the surrounding environment. While mining has prospects and benefits to the economy, both in terms of its own economic impact and the value to other industries of its product, it almost always has adverse environmental impacts and eventually health impacts. There are numerous ways in which mines impact the health of nearby environments and local communities. Mining involves some generally standard processes and practices. This paper considers the effects and harm done to living things around the mine location. By understanding mining’s threats to health and long-term well-being and by taking precautions to reduce harm in all mines, miners and other people in mining communities can better protect their health and improve their lives. This research will address questions like: which are the toxic substances causing health problems in Maiganga Coal Mine? What is the challenging impact of toxic substances in Maiganga coal Mine?.

scholarly journals Implication of Mining to Health in Maiganga Coal Mine, Gombe State, Nigeria

2021 ◽  
Vol 1 (2) ◽  
pp. 4-14
Author(s):  
Amosu C.O. ◽  
Enitan C.S.A. ◽  
Eniola C.S.A.
Keyword(s):  
Environmental Impacts ◽  
Coal Mine ◽  
Mining Industry ◽  
Well Being ◽  
Toxic Substances ◽  
Mining Communities ◽  
Mining Sites ◽  
Living Things ◽  
High Concentrations

Operations of mining are large industrial scale in nature, with significant environmental impacts. The mining industry generates and produces wastes containing high concentrations of metals and metalloids which are highly toxic and destructive to the immediate landscape and environment. In addition, the continued use of the traditional methods of mining intensifies the emission of toxic and products that are not friendly to the ecosystem.. Even regulated and controlled mining sites release toxins into the surrounding environment. While mining has prospects and benefits to the economy, both in terms of its own economic impact and the value to other industries of its product, it almost always has adverse environmental impacts and eventually health impacts. There are numerous ways in which mines impact the health of nearby environments and local communities. Mining involves some generally standard processes and practices. This paper considers the effects and harm done to living things around the mine location. By understanding mining’s threats to health and long-term well-being and by taking precautions to reduce harm in all mines, miners and other people in mining communities can better protect their health and improve their lives. This research will address questions like: which are the toxic substances causing health problems in Maiganga Coal Mine? What is the challenging impact of toxic substances in Maiganga coal Mine?

scholarly journals Field Investigation of Face Spall in Moderate Strength Coal Seam at Vang Danh Coal Mine, Vietnam

2021 ◽  
Vol 37 (2) ◽  
Author(s):  
Le Tien Dung ◽  
Dao Hong Quang
Keyword(s):  
Coal Seam ◽  
Coal Mine ◽  
Main Roof ◽  
Field Investigation ◽  
Stability Control ◽  
Remedial Measures ◽  
Face Stability ◽  
Pressure Profiles ◽  
The Face ◽  
Leg Pressure

Face spall in moderate strength coal seam occurs less frequently but can be more severe and takes a longer time to remedy compared to face spall in the weak coal seam. This paper presents a field investigation of face spall in moderate strength coal seam at Face I-8-1, Vang Danh coal mine, Quang Ninh coal field, Vietnam. The leg pressure of shield support and face condition were monitored within two months, and on-site remedial measures to the spall were discussed. The monitoring results confirmed that the front and rear leg pressure profiles are consistent with world-wide observations. The coal face condition in actual operation was found to be more stable than that in project design. The face spall occurred along face dip direction, but mostly in small extent of less than 0.5 m deep and during transitional time between working shifts. Proper ground control near gate ends by using higher capacity shield supports and supplemental hydraulic props was identified to improve face stability in the area. On-site remedial measures proved their efficiency in small to moderate face spall extent. For main roof rupture-associated face spall, technical measures have been applied but they need further investigation to clarify their effectiveness. The paper’s results can be consulted to improve longwall face stability control in similar coal seam conditions.  

scholarly journals Initial environmental impacts of the Obed Mountain coal mine process water spill into the Athabasca River (Alberta, Canada)

2016 ◽  
Vol 557-558 ◽  
pp. 502-509 ◽  
Author(s):  
Colin A. Cooke ◽  
Colin Schwindt ◽  
Martin Davies ◽  
William F. Donahue ◽  
Ekram Azim
Keyword(s):  
Environmental Impacts ◽  
Coal Mine ◽  
Process Water ◽  
Athabasca River
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