Variability of in situ rock stress

2010 ◽  
pp. 3-10 ◽  
Author(s):  
J Hudson ◽  
X Feng
Keyword(s):  
Rock Stress

Estimating in-situ rock stress from spalling veins: A case study

2013 ◽  
Vol 152 (1) ◽  
pp. 38-47 ◽  
Author(s):  
Quan Jiang ◽  
Xia-ting Feng ◽  
Jing Chen ◽  
Ke Huang ◽  
Ya-li Jiang
Keyword(s):  
Rock Stress

In situ rock stress measurements in Western Australia’s Yilgarn Craton

2006 ◽  
pp. 35-42 ◽  
Author(s):  
M Lee ◽  
L Mollison ◽  
P Mikula ◽  
M Pascoe
Keyword(s):  
Rock Stress ◽  
Yilgarn Craton ◽  
Stress Measurements

scholarly journals Analytical Solution of Tunnel Surrounding Rock for Stress and Displacement Based on Lade–Duncan Criterion

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
MingZheng Zhu ◽  
Yugui Yang ◽  
Feng Gao ◽  
Juan Liu
Keyword(s):  
Internal Friction ◽  
Plastic Zone ◽  
Yield Criterion ◽  
Surrounding Rock ◽  
Rock Stress ◽  
Deformation And Failure ◽  
Displacement Based ◽  
The Stability ◽  
Coulomb Criterion

The deformation and failure of tunnel surrounding rock is the result of tunnel excavation disturbance and rock stress release. When the local stress of surrounding rock exceeds the elastic limit of rock mass, the plastic analysis of surrounding rock must be carried out to judge the stability of tunnel. In this study, the Lade–Duncan yield criterion is used to calculate the analytic solutions for the surrounding rock in a tunnel, and the radius and displacement of the plastic zone are deduced using an equilibrium equation. The plastic zone radius and displacement based on Lade–Duncan criterion and Mohr–Coulomb criterion were compared by using single-factor analysis method under the different internal friction angles, in situ stresses, and support resistances. The results show that the solutions of the radius and displacement of plastic zone calculated by the Lade–Duncan criterion are close to those of Mohr–Coulomb criterion under the high internal friction angle and support resistance or low in situ rock stress; however, the radius and displacement of the plastic zone calculated by the Lade–Duncan criterion are larger under normal circumstances, and the Lade–Duncan criterion is more applicable to the stability analysis of the surrounding rock in a tunnel.

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