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Abstract
A two-dimensional, finite-difference numerical model is used to simulate the drainage of ground water into a surface coal mine. Graphs of dimensionless head as a function of dimensionless distance, and dimensionless seepage flux as a function of dimensionless time are developed from results of the numerical modeling. Changes in seepage flux and ground-water levels can be estimated from the dimensionless hydrographs, from knowledge of aquifer characteristics prior to mining, and by means of several 'simple-to-use' equations. The technique is an improvement on previous experimental, analytical, and other numerical solutions because drainage from the unsaturated zone also is considered. The procedure is applicable to a wide range of hydrogeologic settings, but is especially applicable to hydrogeologic conditions typically encountered in the coal strip-mining regions of Illinois.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | PREDICTING GROUND-WATER DRAINAGE TO SURFACE MINES. |
| ISBN | 0872624099 |
| Year Published | 1984 |
| Language | English |
| Publisher | ASCE |
| Publisher location | New York, NY, USA |
| First page | 184 |
| Last page | 188 |
| Conference Title | Water for Resource Development, Proceedings of the Conference. |
| Conference Location | Coeur D'Alene, ID, USA |
| Google Analytic Metrics | Metrics page |