Failure Propagation of Pillars and Roof in a Room and Pillar Mine Induced by Longwall Mining in the Lower Seam
Sign Up to like & getrecommendations! Published in 2018 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-018-1630-y
Abstract: Underground mining using the room and pillar method leaves pillars to support the overlying strata. When longwall mining is used to extract a lower coal seam beneath the room and pillar mine, the bending of… read more here.
Keywords: mine; failure; longwall; room pillar ... See more keywords
Numerical Modeling Study of the Geo-mechanical Response of Strata in Longwall Operations with Particular Reference to Indian Geo-mining Conditions
Sign Up to like & getrecommendations! Published in 2019 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-019-02018-w
Abstract: India has been seeking technology for mass production of coal below ground. Longwall technology was accepted as one of the options a few decades ago. Unfortunately, it failed to meet the expected benchmark for success.… read more here.
Keywords: geo mechanical; geo mining; mining; strata ... See more keywords
Numerical simulation to determine the gas explosion risk in longwall goaf areas: A case study of Xutuan Colliery
Sign Up to like & getrecommendations! Published in 2020 at "International journal of mining science and technology"
DOI: 10.1016/j.ijmst.2020.07.007
Abstract: Abstract Underground gassy longwall mining goafs may suffer potential gas explosions during the mining process because of the irregularity of gas emissions in the goaf and poor ventilation of the working face, which are risks… read more here.
Keywords: goaf; risk; gas; longwall ... See more keywords
Assessing support alternatives for longwall gateroads subject to changing stress
Sign Up to like & getrecommendations! Published in 2021 at "International journal of mining science and technology"
DOI: 10.1016/j.ijmst.2020.12.016
Abstract: Abstract Longwall gateroad entries are subject to changing horizontal and vertical stress induced by redistribution of loads around the extracted panel. The stress changes can result in significant deformation of the entries that may include… read more here.
Keywords: stress changes; subject changing; longwall; stress ... See more keywords
Using integrated process data of longwall shearers in data warehouses for performance measurement
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Oil, Gas and Coal Technology"
DOI: 10.1504/ijogct.2017.10007433
Abstract: Coal, still considered as one of the primary energy resources worldwide, is mined by utilising large scale equipment both on surface operations and underground mines. Technology has become a fundamental piece of modern mining operations… read more here.
Keywords: process data; longwall shearers; data longwall; longwall ... See more keywords
Seismoacoustic Monitoring of a Longwall Face Using Distributed Acoustic Sensing
Sign Up to like & getrecommendations! Published in 2023 at "Bulletin of the Seismological Society of America"
DOI: 10.1785/0120220219
Abstract: Violent, dynamic failures of rockmasses in underground mines pose significant hazards to workers and operations. Over the past several decades, hardrock mines have widely adopted seismic monitoring to help address such risks. However, coal mines,… read more here.
Keywords: longwall face; acoustic sensing; distributed acoustic; monitoring ... See more keywords