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PREDICTING GROUND-WATER DRAINAGE TO SURFACE MINES.

By:
,
Edited by:
Schreiber David L.

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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.

Additional Publication Details

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
Number of Pages:
5
Conference Title:
Water for Resource Development, Proceedings of the Conference.
Conference Location:
Coeur D'Alene, ID, USA