Using the GRAM Model to Reconstruct the Important Factors in Historic Groundwater Rebound in Part of the Durham Coalfield,UK |
| |
Authors: | L Kortas P L Younger |
| |
Affiliation: | (1) Laboratory of Engineering Geophysics, Dept of Geology and Geophysics, Central Mining Institute, Pl Gwarków 1, 40-166 Katowice, Poland;(2) Institute for Research on Environment and Sustainability, Devonshire Bldg, Univ of Newcastle Upon Tyne, Newcastle Upon Tyne, NE1 7RU, UK |
| |
Abstract: | Abstract: Modeling of mine water rebound in the southernmost zone of the Durham Coalfield has been undertaken in an attempt to reproduce
observed water level recovery, since the 1970s, within five coal blocks south of the Butterknowle Fault. The lumped parameter
model GRAM (groundwater rebound in abandoned mineworkings) was chosen to perform the simulations since it overcomes, to a large extent, a common problem found in such studies,
namely a lack (especially concerning historic hydrogeological records) and superabundance of various kinds of data. The results
obtained from this approach are satisfying and closely resemble the observed pattern of mine water rebound for the mining
blocks studied. Such research indicates the critical dependence of predictions on factors such as the volume of water flowing
into the system, the percentage runoff, and the value of storage coefficient assigned to the old workings. Model predictions
are most useful as a tool for improving the conceptual understanding of abandoned mine systems and as a basis for evaluating
alternative possibilities of coalfield behaviour, rather than as a strict quantitative assessment for all management purposes. |
| |
Keywords: | :" target="_blank">: Durham Coalfield GRAM model mine hydrology rebound |
本文献已被 SpringerLink 等数据库收录! |
|