... Abstract The development of Turkey’s deepest coal mine is currently underway to the proposed depth of 1200 meters (m) below surface at the Soma Coal Basin. An 11 m intersection forming an access way from one of the main declines was excavated at approximately 900 m below surface collapse...

... with buckling failure. Example of stress conditions from case studies are analyzed in this paper. Introduction Underground mechanized coal mining in the United States has transitioned significantly from room and pillar mining using cutting machines and continuous miners to mining a high percentage...

... limited applications over some underground coal mines and commercial applications for open pit mines. In this paper, the authors will review the subsidence monitoring over one of the Colorado operations utilizing precise GPS measurements. This case study will address geologic setting, vertical...

... Abstract Cable bolts are commonly used as anchoring element in many underground mines. Reports on the premature failure of cable bolts in underground coal mines due to stress corrosion cracking (SCC) have been increasing in the past two decades. The previous studies found that the diffusion...

... Abstract In this paper, a probabilistic design chart for coal pillar based on South African coal mine experience is proposed as a tool capable of estimating the pillar strength. A methodology based on the logistic regression is employed to identify failed and intact pillars...

... government reservoir geomechanics practice iop publishing iop conf dip-slip fault environmental science 833 mining engineering stability roadway rockburst characteristic coal mining rock engineering outburst prediction rock type metals & mining engineering rock mech accumulation theory...

... to formulate conclusions for longwall mining operations and evaluation of seismic activity in unfavourable geomechanical conditions within the area of protective shaft pillar border. Introduction Coal mining is still one of the most dangerous branches of all working environments. Seismic events induced...

..., the owner of land owns only the surface minerals. In English speaking countries the owner of the land owns the minerals to indefinite depth. Some exemptions to those rules for strategic minerals are still in order. Particularly coal mining in the Ruhr area led to the first mining law in 1865...

... and metamorphic rocks around the world. Q-slope has successfully been applied to slopes ranging from less than 5 m to more than 250 m in height in both civil and mining environments since its introduction in 2015. This paper describes the application of Q-slope to excavated coal mine slopes which are often hosted...

...Rock Mechanics in Civil and Environmental Engineering Zhao, Labiouse, Dudt & Mathier (eds) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-58654-2 Numerical analysis of geomechanical processes in coal mining using the Velenje mining method G. Jeromel Coal Mine Velenje, Velenje, Slovenia J...

... the biggest annual coal outputs In history of coalfield were achieved, i.e. 24 million t/a. It was expected, therefore, that the wind-up of coal mining, which occurred during nineties and during which coal production was gradually reduced up to annual output of about 14 million t/a, would be manifested...

... and conglomerates (Lower Sucha and Saddle strata of Upper Carboniferous, i.e. Middle and Upper Namurian). Equally in course of the last fifteen years in connection with privatisation and restructuring of mining companies the coal mining conditions in OKR have changed conspicuously as a wind-up of coal production...