Water table recovery in a reclaimed surface lignite mine, Grimes County, Texas /
(potential saturated thickness) of water table recovery.
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | (potential saturated thickness) of water table recovery. any water table elevation above the mine floor to which appear to be controlled by the amount of sand in the pre- area, and SW = Surface Water contribution to spoil As RC increases, recovery rate and/or magnitude increases. Coefficient (RC) is the average slope of the recovery curve. conclusions were made pertaining to water table recovery at constant Eo is the y-intercept which approximates the water containing replaced overburden has been monitored at Gibbons controlled by the complex interrelationships of several Creek Lignite Mine in Grimes County, Texas since 1986. Dimensions, HS = Hydrostratigraphic Setting, HP = Hydraulic down-gradient of the mined land, 4) mining in several drawdown during mining can impact the local water table equation: RC= f (MD, HS, HP, MB, S 99 where MD = Mine block factors which may be described by the following factorial forces hydraulic connection of many of the stratigraphic Gibbons Creek Lignite Mine: 1) rate of recovery does not If recovery is uniform with respect to mine floor elevation, in adjacent unmined land. It was found that water table is an exponential function of time and may be described by locations over an area composed of fluvial-deltaic sediments mine overburden, 2) surface water impoundments do not pre-mine confined ground-water systems. Properties of the spoil, MB = Moisture Balance for the mine RC distributions for wells in a mine block can be RC is proportional to inflow rate and the magnitude Recovery analysis was conducted based on data recorded at 27 recovery has occurred over the time, t, transpired between recovery in reclaimed mine blocks is predictable: recovery referenced from the time of spoil replacement. The Recovery resaturation. Based on the analyses the following significantly recharge the mine blocks, 3) water table standardized with respect to the mine block dimensions such table elevation at the beginning time of recovery, to that one RC value is attained for each mine block. RC is the following equation: Ew = RC log (t) + Eo where Ew equals the time recovery began to the time Ew is attained. The units producing an unconfined water table aquifer from the Water table recovery in four reclaimed mine blocks wells installed in the reclaimed land and 23 wells installed |
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| Item Description: | "Major subject: Geology". Vita. |
| Physical Description: | xii, 138 leaves : illustrations, maps ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |