Assessment of potential impacts to surface and subsurface water bodies due to longwall mining

Ground movements due to longwall mining operations have the potential to damage the hydrological balance within as well as outside the mine permit area in the form of increased surface ponding and changes to hydrogeological properties. Recently, the Office of Surface Mining, Reclamation and Enforcem...

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Bibliographic Details
Published inInternational journal of mining science and technology Vol. 27; no. 1; pp. 57 - 64
Main Authors Newman, Christopher, Agioutantis, Zacharias, Boede Jimenez Leon, Gabriel
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2017
Department of Mining Engineering, University of Kentucky, Lexington, KY 40506, USA
Elsevier
Subjects
Aquifers
Coal mining
Ground strain
Streams
可能影响
地表积水
地面运动
水体
水文地质特性
评估
采矿作业
长壁开采
Ground strain
Coal mining
Streams
Aquifers
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Summary:Ground movements due to longwall mining operations have the potential to damage the hydrological balance within as well as outside the mine permit area in the form of increased surface ponding and changes to hydrogeological properties. Recently, the Office of Surface Mining, Reclamation and Enforcement （OSMRE） in the USA, has completed a public comment period on a newly proposed rule for the protection of streams and groundwater from adverse impacts of surface and underground mining operations （80 FR 44435）. With increased community and regulatory focus on mining operations and their potential to adversely affect streams and groundwater, now there is a greater need for better pre- diction of the possible effects mining has on both surface and subsurface bodies of water. With mining induced stress and strain within the overburden correlated to changes in the hydrogeological properties of rock and soil, this paper investigates the evaluation of the hydrogeological system within the vicinity of an underground mining operation based on strain values calculated through a surface deformation pre- diction model. Through accurate modeling of the pre- and post-mining hydrogeological system, industry personnel can better depict mining induced effects on surface and subsurface bodies of water aiding in the optimization of underground extraction sequences while maintaining the integrity of water resources.
Bibliography:32-1827/TD
Streams;Aquifers;Ground strain;Coal mining
Ground movements due to longwall mining operations have the potential to damage the hydrological balance within as well as outside the mine permit area in the form of increased surface ponding and changes to hydrogeological properties. Recently, the Office of Surface Mining, Reclamation and Enforcement （OSMRE） in the USA, has completed a public comment period on a newly proposed rule for the protection of streams and groundwater from adverse impacts of surface and underground mining operations （80 FR 44435）. With increased community and regulatory focus on mining operations and their potential to adversely affect streams and groundwater, now there is a greater need for better pre- diction of the possible effects mining has on both surface and subsurface bodies of water. With mining induced stress and strain within the overburden correlated to changes in the hydrogeological properties of rock and soil, this paper investigates the evaluation of the hydrogeological system within the vicinity of an underground mining operation based on strain values calculated through a surface deformation pre- diction model. Through accurate modeling of the pre- and post-mining hydrogeological system, industry personnel can better depict mining induced effects on surface and subsurface bodies of water aiding in the optimization of underground extraction sequences while maintaining the integrity of water resources.
ISSN:2095-2686
DOI:10.1016/j.ijmst.2016.11.016