Backfilling Problem in the Anthracite Region as it Relates to Conservation of Anthracite and Prevention of Subsidence

Backfilling Problem in the Anthracite Region as it Relates to Conservation of Anthracite and Prevention of Subsidence
Author: Simon Harry Ash
Publisher:
Total Pages: 22
Release: 1946
Genre: Anthracite coal
ISBN:

Federal participation in a cooperative "backfilling" program to prevent surface cave-ins in the anthracite region of Pennsylvania is recommended in this report, which describes a plan for filling worked-out underground areas with waste or other material. Presents the various systems of backfilling and the technical problems involved. Bibliography included

Bulletin

Bulletin
Author: United States. Bureau of Mines
Publisher:
Total Pages: 1002
Release: 1915
Genre:
ISBN:

Bulletin

Bulletin
Author:
Publisher:
Total Pages: 710
Release: 1913
Genre: Mines and mineral resources
ISBN: