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U.S. Department of Energy
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Ground subsidence and structural damage over an abandoned room-and-pillar coal mine at Hegeler, Illinois

Technical Report ·
OSTI ID:5218518
The Bureau of Mines and the University of Illinois investigated surface characteristics and damage to structures from mine subsidence over a room-and-pillar coal mine in Hegeler, IL. Data on three adjacent subsidence sags and associated structural damage were collected, summarized and evaluated.
Research Organization:
Bureau of Mines, Twin Cities, MN (USA). Twin Cities Research Center
OSTI ID:
5218518
Report Number(s):
PB-86-229770/XAB; BM-IC-9072
Country of Publication:
United States
Language:
English