Abutment pressure distribution pattern and size optimization of coal pillar under repeated mining: a case study
Sign Up to like & getrecommendations! Published in 2020 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-020-06281-y
Abstract: Abutment pressure distribution is the decisive factor affecting the stability of coal pillars, which has an important significance in realizing safe and efficient mining. In recent years, many working faces adopting double-roadway arrangement have appeared… read more here.
Keywords: coal pillar; abutment pressure; mining; coal ... See more keywords
A New Closed-Form Solution of the Side Abutment Pressure Distribution of Roadway
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DOI: 10.1155/2018/1409493
Abstract: Instability of coal wall is one of the hot-button and difficult issues in the study of coal mine ground control. The shallow side coal of roadway in the coal measures is usually weak and consequently… read more here.
Keywords: abutment pressure; form solution; side abutment; closed form ... See more keywords
Study of Abutment Pressure Zone Formation in the System of "Paired Drifts"
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DOI: 10.17073/2500-0632-2020-1-49-55
Abstract: The paper presents comprehensive studies of abutment pressure formation zones in the geotechnical system of "paired drifts", including numerical simulation based on the finite element method. For the simulation, the Mohr - Coulomb elastic-plastic model… read more here.
Keywords: abutment pressure; pressure; formation; paired drifts ... See more keywords
Abutment Pressure Distribution Law and Support Analysis of Super Large Mining Height Face
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DOI: 10.3390/ijerph20010227
Abstract: Under the condition of the shallow coal seam, the laws of roof activity after large mining height longwall face mining and prevention measures for large-area roof weighting are problems that need to be solved urgently.… read more here.
Keywords: abutment pressure; face; mining height; mining ... See more keywords