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Geophysical Measurement System for Delineation of Channel Sands.

Authors
Cook-JC
Source
NTIS: PB/266-837 Available for Reference At Bureau Libraries :97 pages
Link
NIOSHTIC No.
10000844
Abstract
Channel sand bodies are deposits of barren, hard sediments that interrupt production and pose safety hazards when encountered in underground coal mining. To locate these costly impediments to mining in advance, from the surface of the ground, the seismic reflection method is recommended. High-resolution techniques for shallow seismic exploration of coalbeds have been worked out and are reported. New developed high-frequency, digital recording equipment was used, together with lightweight shot-drilling equipment and a variety of down-hole seismic impulse sources. Techniques for rapid but complete coverage of a coal prospect area with a crew of two to six men in two or three vehicles are described.
Publication Date
19760101
Document Type
CP; Final Contract Report;
Fiscal Year
1976
NTIS Accession No.
PB-266837
NTIS Price
A06
Identifying No.
OFR 83-77
NIOSH Division
DRC;
Source Name
NTIS: PB/266-837 Available for Reference At Bureau Libraries
Performing Organization
Teledyne Geotech
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