Effect of Premining on Hard Roof Distress Behavior: A Case Study
Sign Up to like & getrecommendations! Published in 2019 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-018-1657-0
Abstract: Considering the complex geological conditions of mining in the fully mechanized 828 working face of the Qingdong Coal Mine, a mining plan was developed for premining the upper No. 7 coal seam to control the… read more here.
Keywords: coal; coal seam; hard roof; premining coal ... See more keywords
Numerical Analysis of Air Leakage Characteristics of Coal Seam Goaf Close to Thin Band
Sign Up to like & getrecommendations! Published in 2018 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-018-0526-7
Abstract: This paper aims to research the air leakage of coal goaf near to thin band in Nantun Coal Mine. With using PFC3D numerical simulation software and establishing close distance coal seams mining numerical model, it… read more here.
Keywords: coal; coal seam; seam goaf; upper coal ... See more keywords
The Thin Coal Seam (TCS) Mining Technology for Open Pit Mines in China
Sign Up to like & getrecommendations! Published in 2018 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-018-0562-3
Abstract: Coal seam that is thinner than a certain value is defined as thin coal seams (TCS). It commonly occurs in China as it covers 84.2% of the mining area. This situation is even severe in… read more here.
Keywords: coal; coal seam; tcs mining; thin coal ... See more keywords
Experimental Study on the Width of the Reasonable Segment Pillar of the Extremely Soft Coal Seam in the Deep Mine
Sign Up to like & getrecommendations! Published in 2019 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-019-00954-6
Abstract: Various dynamic disasters will happen in the extremely soft coal seam mining process of Gob-side entry in the deep mine, including large deformation of roadways, rock burst, gas unusual, floor water invasion, spontaneous combustion of… read more here.
Keywords: side entry; coal seam; gob side;
Experimental Research on Dynamic Evolution Characteristics of Roof Movement and Mining-Induced Stress of Superimposed Mining in a Close Distance Coal Seam Group
Sign Up to like & getrecommendations! Published in 2019 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-019-00968-0
Abstract: To obtain the evolution characteristics of roof movement and mining-induced stress, the evolution of roof movement and mining-induced stress are investigated during the mining of close coal seams based on 2# and 3 + 4# coal seams… read more here.
Keywords: superimposed mining; coal seam; mining; mining close ... See more keywords
Comprehensive prediction of coal seam thickness by using in-seam seismic surveys and Bayesian kriging
Sign Up to like & getrecommendations! Published in 2019 at "Acta Geophysica"
DOI: 10.1007/s11600-019-00298-y
Abstract: Quantitative determination of the coal seam thickness distribution within the longwall panel is one of the primary works before integrated mining. In-seam seismic (ISS) surveys and interpolations are essential methods for predicting thickness. In this… read more here.
Keywords: coal seam; prediction; thickness; seam thickness ... See more keywords
Prediction of coal-bearing strata characteristics using multi-component seismic data—a case study of Guqiao coalmine in China
Sign Up to like & getrecommendations! Published in 2018 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-018-3767-0
Abstract: The longwall mining method has been widely used in underground mining of coal seams. For longwall mining, the stability of coal-seam roofs and hardness of coal rocks in coal-bearing strata are particularly important. High-precision multi-component… read more here.
Keywords: coal seam; component seismic; multi component; seismic data ... See more keywords
Linkage-induced mechanism and control technology of pressure bump and surface geological damage in shallow coal seam mining of gully area
Sign Up to like & getrecommendations! Published in 2019 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-019-4511-0
Abstract: Coal mining will cause pressure bump in mining face and surface landslide, subsidence, and another geological damage in shallow thick coal seam mining of gully region. To analyze the linkage-induced mechanism and mutual influence relation… read more here.
Keywords: coal seam; mining; surface; damage ... See more keywords
Improvement on gas drainage of soft gassy coal seam with underground hydraulic flushing and fracturing: a case study in Huainan
Sign Up to like & getrecommendations! Published in 2020 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-020-5200-8
Abstract: The low gas drainage efficiency of soft coal seam is a key factor that induces gas disasters, such as gas explosion and outburst, in China. This study aims to improve the gas drainage efficiency of… read more here.
Keywords: coal; coal seam; gas drainage;
Formation Environment of Main Brown Coal Seam in Xi-2 Minefield of Shengli Coalfield Based on Coal Ash Phase Analysis
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the Geological Society of India"
DOI: 10.1007/s12594-018-0960-4
Abstract: The formation environment of the main coal seam in Shengli coal mine is analyzed, and the effect of coal ash parameters on the coal-forming environment is mainly discussed according to gray component parameters combined with… read more here.
Keywords: coal seam; water; formation; coal ... See more keywords
Evaluation of water inrush risk from coal seam floors with an AHP–EWM algorithm and GIS
Sign Up to like & getrecommendations! Published in 2019 at "Environmental Earth Sciences"
DOI: 10.1007/s12665-019-8301-5
Abstract: As coal mining is extended to ever-greater depths, the factors affecting the safe mining of coal seams are becoming increasingly complicated. High-pressure confined water in the coal seam floor can pose a major threat to… read more here.
Keywords: coal; coal seam; water; water inrush ... See more keywords