Accession Number:
AD0689578
Title:
STUDIES IN ROCK FRACTURE.
Descriptive Note:
Technical rept. no. 1, 1 May 68-30 Apr 69,
Corporate Author:
TEXAS A AND M UNIV COLLEGE STATION CENTER FOR TECTONOPHYSICS
Personal Author(s):
Report Date:
1969-06-15
Pagination or Media Count:
48.0
Abstract:
The study is to evaluate the influence of residual elastic strain on the orientations of tensile and shear fractures in rock. As a first step the three-dimensional state of residual elastic strain was measured by X-ray diffractometry in each of three quartzose sandstones. A prediction was then made concerning the orientations of fractures that would be induced in each rock by loading normal to bedding. The prediction was based upon a knowledge of the prestrain, the applied loads, the maximum tensile stress and Coulomb-Mohr criteria. Each prediction was then tested by experimentally fracturing the rocks. Author
Descriptors:
Subject Categories:
- Geology, Geochemistry and Mineralogy