Photoelastic simulation of the stress wave field around a tunnel in an anisotropic rock mass subject to shock load

2006 ◽  
Vol 42 (8) ◽  
pp. 948-950 ◽  
Author(s):  
M. P. Malezhik ◽  
I. S. Chernyshenko ◽  
G. P. Sheremet
Keyword(s):  
Rock Mass ◽  
Wave Field ◽  
Stress Wave ◽  
Shock Load ◽  
Anisotropic Rock ◽  
Anisotropic Rock Mass

scholarly journals The ARMR Classification System and the Modified Hoek-Brown Failure Criterion Compared to Directional Shear Strength Models for Anisotropic Rock Masses

2019 ◽  
Author(s):  
Neil Bar ◽  
Charalampos Saroglou
Keyword(s):  
Shear Strength ◽  
Rock Mass ◽  
Failure Criterion ◽  
Classification System ◽  
Failure Criteria ◽  
Rock Masses ◽  
Anisotropic Rock ◽  
Anisotropic Rock Mass ◽  
Degree Of Anisotropy ◽  
Strength Models

The anisotropic rock mass rating classification system, ARMR, has been developed in conjunction with the Modified Hoek-Brown failure to deal with varying shear strength with respect to the orientation and degree of anisotropy within an anisotropic rock mass. Conventionally, ubiquitous-joint or directional shear strength models have assumed a general rock mass strength, typically estimated using the Hoek-Brown failure criterion, and applied a directional weakness in a given orientation depending on the anisotropic nature of the rock mass. Shear strength of the directional weakness is typically estimated using the Barton-Bandis failure criterion, or on occasion, the Mohr-Coulomb failure criteria. Directional shear strength models such as these often formed the basis of continuum models for slopes and underground excavations in anisotropic rock masses. This paper compares ARMR and the Modified Hoek-Brown failure criterion to the conventional directional shear strength models using a case study from Western Australia.

Problems of stability of vertical excavations in an anisotropic rock mass

1978 ◽  
Vol 14 (12) ◽  
pp. 1253-1258
Author(s):  
Zh. S. Akopyan ◽  
I. Yu. Babich ◽  
A. N. Guz' ◽  
L. V. Deriglazov
Keyword(s):  
Rock Mass ◽  
Anisotropic Rock ◽  
Anisotropic Rock Mass
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