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agricultural impacts of longwall mine subsidence:the experience in Illinois,USA and Queensland,Australia

International Journal of Coal Science & Technology 2014年第2期1卷 207-212页

作者： Robert G.Darmody R.Bauer D.Barkley S.Clarke D.Hamilton Land Reclamation Division Illinois Natural Resources DepartmentIllinois Prairie Research InstituteUniversity of IllinoisChampaignUSA bandanna energy limited and agricultural coexistence research committee BrisbaneAustralia

Unlike conventional room and pillar underground coal mining,where subsidence is designed to be prevented,subsidence is a planned outcome of other *** include high extraction retreat,where the roof supporting pillars are systematically removed,and longwall mining,which employs a machine that mines a continuous strip of coal,thus leaving no roof *** types result in the surface dropping -70% of the mined-out *** Illinois there was a concern that farm land thus subsided would be lost to productive ***,the possibility that planned mine subsidence would be banned in Illinois lead to the creation of the Illinois Mine Subsidence research Program in 1985 to investigate agricultural impacts of planned mine subsidence and the possibility of mitigating its *** findings established that subsidence was not as detrimental as feared and that the impacts could be *** project was a successful collaboration of state and federal governments and local ***,in Queensland,longwall mining is opposed by some in the farming *** response,bandanna energy,the company planning the mining,organized the agricultural coexistence research committee to oversee research into the mitigation of longwall mining *** the soils,climate,and regulatory regimes are different,concerns of the local communities are similar.

关键词： agricultural impact Longwall mine subsidence Coal mining subsidence Subsidence mitigation

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