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State-of-the-Art Techniques for Backfilling Abandoned Mine Voids.

PB93232528

Publication Date	1993
Personal Author	Walker, J. S.
Page Count	63
Abstract	Abandoned underground mine openings are susceptible to collapse because of the mining methods used, the character of the overburden, and the typically large wide entries with minimal roof support. The final effect of the collapse of the underground workings is surface subsidence. To reduce the probability of subsidence, methods to backfill the mine void with various types of materials have been developed. The paper describes the available technologies for subsidence abatement and discusses their operation and application.
Keywords	Underground mining Subsidence Backfills Abandoned sites Abandoned shafts Overburden Land reclamation Coal mines Pneumatic equipment Stowing
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 48E - Soil Sciences
Corporate Authors	Bureau of Mines, Pittsburgh, PA. Pittsburgh Research Center.
Supplemental Notes	Library of Congress catalog card no. 91-41440.
Document Type	Technical Report
Title Note	Information circular/1993.
NTIS Issue Number	199324

State-of-the-Art Techniques for Backfilling Abandoned Mine Voids.

State-of-the-Art Techniques for Backfilling Abandoned Mine Voids.
PB93232528

Publication Date	1993
Personal Author	Walker, J. S.
Page Count	63
Abstract	Abandoned underground mine openings are susceptible to collapse because of the mining methods used, the character of the overburden, and the typically large wide entries with minimal roof support. The final effect of the collapse of the underground workings is surface subsidence. To reduce the probability of subsidence, methods to backfill the mine void with various types of materials have been developed. The paper describes the available technologies for subsidence abatement and discusses their operation and application.
Keywords	Underground mining Subsidence Backfills Abandoned sites Abandoned shafts Overburden Land reclamation Coal mines Pneumatic equipment Stowing
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 48E - Soil Sciences
Corporate Authors	Bureau of Mines, Pittsburgh, PA. Pittsburgh Research Center.
Supplemental Notes	Library of Congress catalog card no. 91-41440.
Document Type	Technical Report
Title Note	Information circular/1993.
NTIS Issue Number	199324