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Overcoring Equipment and Techniques Used in Rock Stress Determination (An Update of IC 8618).

Authors
Bickel-DL
Source
MISSING :27 pages
Link
NIOSHTIC No.
10004448
Abstract
Stress-relief techniques and instrumentation have been developed through many years of research in the Bureau of Mines and successfully used to determine the in situ state of stress in rock. This report describes the Bureau's three-component borehole deformation gauge and the drilling equipment and accessories used with it. Operation and calibration procedures for the deformation gauge are discussed in detail, along with site selection and overcoring procedures. Information and references included in this publicaiton provide a guide to the Bureau's overcoring method for determining rock stress.
Publication Date
19850101
Document Type
IH; Information Circular;
Fiscal Year
1985
NTIS Accession No.
NTIS Price
Identifying No.
IC 9013
NIOSH Division
DRC;
Source Name
MISSING
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