Groundwater as an environmental constraint of longwall coal mining
Groundwater impacts are a common reason for opposition to longwall mining. Most impacts are due to subsidence-related fracturing. Although upper aquifers are protected from drainage to the mine by a confining zone, water levels decline due to fracture dilation, and drawdown expands outward a few hun...
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Veröffentlicht in: | Environmental earth sciences 2006-03, Vol.49 (6), p.796-803 |
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Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | Groundwater impacts are a common reason for opposition to longwall mining. Most impacts are due to subsidence-related fracturing. Although upper aquifers are protected from drainage to the mine by a confining zone, water levels decline due to fracture dilation, and drawdown expands outward a few hundred meters. Recovery of water levels is common. |
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ISSN: | 0943-0105 1866-6280 1432-0495 1866-6299 |
DOI: | 10.1007/s00254-006-0173-9 |