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Instrumentation to Monitor Subsidence Associated With High Extraction Mining in the Illinois Basin.

Authors
Huck-PJ; Bhattacharya-S
Source
NTIS: PB 88-241922 :60 pages
Link
NIOSHTIC No.
10006273
Abstract
Prime cropland and underground coal reserves constitute two significant natural resources in the state of Illinois. Utilization of both agricultural and mineral resources suggests the development of high-extraction mining methods which minimize damage to the over- lying croplands. Several Illinois agencies have therefore instituted a program to study high-extraction mining methods in an effort to characterize surface damage caused by subsidence. In support of this program, Engineers International, Inc. undertook a program from the U.S. Bureau of Mines, Twin Cities Research Center, to select and emplace appropriate subsidence instrumentation over a high-extraction mine panel selected by the cooperating Illinois state agencies. This instrumentation was to provide subsidence data for both short-term and long-term subsidence and hydrological effects of mining. The emplaced instrumentation included multipoint borehole extensometers (mbpx), observation wells, piezometers, subsidence monuments, and control monuments to provide local horizontal and vertical control. A suite of laboratory tests was conducted on specimens recovered during drilling, and rock properties data were culled from published and Engineers International, Inc. file data.
Publication Date
19880101
Document Type
CP; Final Contract Report;
Fiscal Year
1988
NTIS Accession No.
PB88-241922
NTIS Price
A05
Identifying No.
OFR 48-88
NIOSH Division
TCRC;
Source Name
NTIS: PB 88-241922
State
IL;
Performing Organization
Engineers International, Inc.
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