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Development of a Deep Penetrating Borehole Geophysical Technique for Predicting Hazards Ahead of Coal Mining.

Authors
Suhler-SA; Owen-TE; Hipp-JE; Peters-WR
Source
NTIS: PB/80-208614 :124 pages
Link
NIOSHTIC No.
10002057
Abstract
A field operable, breadboard model, borehole radar was developed to detect hazardous geological anomalies in and above a coal seam in advance of mining. A 4-inch-diameter downhole probe was fabricated and tested in several environments. The radar transmitter was also employed in a cross-hole or through-transmission mode to determine natural geotechnical and manufactured conditions between boreholes. Sensitivity to underground conditions in both modes of operation were indicated.
Publication Date
19780101
Document Type
CP; Final Contract Report;
Fiscal Year
1978
NTIS Accession No.
PB80-208614
NTIS Price
A07
Identifying No.
OFR 77-80
NIOSH Division
DRC;
Source Name
NTIS: PB/80-208614
Performing Organization
Southwest Research Institute
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