Local instability of horizontal elliptic excavations in elastoviscoplastic rock masses

In the framework of three-dimensional stability equations, we study the local instability of a horizontal excavation with elliptic cross-section under the assumption that the rock mass behaves like an elastoviscoplastic media. An estimate of the influence of the rock mass parameters on the value of...

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Bibliographic Details
Published in:Mechanics of solids 2007-04, Vol.42 (2), p.321-328
Main Authors: Gotsev, D. V., Enenko, I. A., Sporykhin, A. N.
Format: Article
Language:English
Subjects:
Critical pressure
Dimensional stability
Rock masses
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Summary:In the framework of three-dimensional stability equations, we study the local instability of a horizontal excavation with elliptic cross-section under the assumption that the rock mass behaves like an elastoviscoplastic media. An estimate of the influence of the rock mass parameters on the value of the critical pressure is given.
ISSN:0025-6544
1934-7936
DOI:10.3103/S0025654407020161