SUBSIDENCE CONTROL FOR STRUCTURES ABOVE ABANDONED COAL MINES

Subsidence of the ground surface above abandoned coal mines can cause serious damage to highways, buildings, and other facilities. Two categories of techniques used in controlling subsidence are selective support for structures and filling of voids caused by past mining operations. The particular method used must be adapted to the local geologic setting and the mining methods that were employed in extracting the coal as well as the support requirements of the structure, because these factors vary within any given site and from one locality to another. This paper presents a case history of subsidence control for an electric substation. The subsurfaces stabilization techniques used included drilled piers and piling for support of the structures, and grout columns and dry fly ash injection for support of the roadways. /Author/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1976/612/612-003.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=SUBSIDENCE+CONTROL+FOR+STRUCTURES+ABOVE+ABANDONED+COAL+MINES&author=R.+Gray&author=H.+Salver&author=J.+Gamble&publication_year=1976
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Engineering Geology. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Gray, R E
  • Salver, H A
  • Gamble, J C
• Publication Date: 1976

Media Info

• Features: Figures; References;
• Pagination: p. 17-24
• Monograph Title: Subsidence over mines and caverns, moisture and frost actions, and classification
• Serial:
  • Transportation Research Record
  • Issue Number: 612
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Coal mines; Columns; Earthwork; Electric substations; Fly ash; Grout; Piers (Supports); Piers (Wharves); Structural supports; Subsidence (Geology); Void ratios
• Old TRIS Terms: Void
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00158163
• Record Type: Publication
• ISBN: 0309025885
• Files: TRIS, TRB
• Created Date: Sep 28 1977 12:00AM