@inproceedings{59364bd49ab449d688e4915f7d169705,
title = "Elasto-plastic analysis of elliptical cavities in rock subject to non-hydrostatic loading",
abstract = "The paper describes a (FLAC) numerical analysis of the response of cavities of elliptical shape in isotropic elastic perfectly-plastic materials when subjected to non-hydrostatic external stresses and uniform internal pressure. Cases in which the plastic zone completely surrounds the cavity are considered. The material is assumed to obey a Mohr-Coulomb yield condition and the associated flow rule. The extension and shape of the plastic region and the amount of convergence occurring at the wall have been determined using FLAC. Results are compared with those for an equivalent circular cavity under hydrostatic and non-hydrostatic loading. The comparison provides insight on the appropriate orientation of elliptical and similar non-circular cavities (with respect to the directions of the far-field stresses) to minimize the size of the plastic failure region and the resulting convergence.",
author = "C. Carranza-Torres and C. Fairhurst",
year = "1999",
month = dec,
day = "1",
language = "English (US)",
isbn = "9058090744",
series = "FLAC and numerical modeling in geomechanics. Proceedings of the international FLAC symposium, Minneapolis, September 1999.",
pages = "215--223",
editor = "C. Detournay and R. Hart and C. Detourney and R. Hart",
booktitle = "FLAC and numerical modeling in geomechanics. Proceedings of the international FLAC symposium, Minneapolis, September 1999.",
note = "Proceedings of the 1999 FLAC and numerical modeling in geomechanics symposium. ; Conference date: 01-09-1999 Through 03-09-1999",
}