Accession Number:

AD0697752

Title:

THE PHOTOELASTIC UNIDIRECTIONAL STRESSMETER. A BOREHOLE ROCK STRESS GAUGE

Descriptive Note:

Special rept.

Corporate Author:

COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH

Personal Author(s):

Report Date:

1969-10-01

Pagination or Media Count:

24.0

Abstract:

The development, calibration and use of a simple and robust, unidirectional borehole rock stressmeter is described. Readout is in terms of the photoelastic isochromatic fringe order in a glass cylinder built into the meter. The meter, which is preloaded in the borehole, is intended for both stress change and absolute rock stress measurements.

Subject Categories:

  • Geology, Geochemistry and Mineralogy
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE