Remotely placed concrete/gravel columns for point support with innovative concrete placement device and a pneumatic feeder for remote sealing and support of abandoned mines.
Burnett-M; El-Korchi-T; Burnett-JM
BoM, 1993 Nov; :1-45
This report covers three separate areas of abandoned mine subsidence abatement technology. The first is the development of a cost effective method of remote placement of point support columns in abandoned mines through boreholes. The second is the design and test of a twin screw pneumatic pipefeeder for metering fill material into a pipeline for stowing in abandoned mine entries. The third area is a demonstration task to fill an abandoned mine tunnel using the high-efficiency pneumatic ejector and the pneumatic pipefeeder.
Subsidence; Concrete-structures; Pipelines; Backfills; Design-criteria; Performance-evaluation; Abandoned-shafts; Underground-mining; Pneumatic-equipment; Mining-equipment; Mining-industry;
Final Contract Report
NTIS Accession No.
Bureau of Mines, Pittsburgh, Pennsylvania
Burnett Associates, Inc., Framingham, Massachusetts