Experimental Study of the Mechanical Characteristics of Jinping Marble Under Multi-stage True Triaxial Compression Testing

2021 ◽  
Author(s):  
Gang Wang ◽  
Xia-Ting Feng ◽  
Chengxiang Yang ◽  
Qiang Han ◽  
Rui Kong
Keyword(s):  
Experimental Study ◽  
Mechanical Characteristics ◽  
Triaxial Compression ◽  
Compression Testing ◽  
True Triaxial ◽  
Multi Stage ◽  
True Triaxial Compression ◽  
Jinping Marble

Fractal characteristics of acoustic emissions from coal under multi-stage true-triaxial compression

2018 ◽  
Vol 15 (5) ◽  
pp. 2021-2032 ◽  
Author(s):  
Li Dexing ◽  
Wang Enyuan ◽  
Kong Xiangguo ◽  
Wang Xiaoran ◽  
Zhang Chong ◽  
...  
Keyword(s):  
Triaxial Compression ◽  
Acoustic Emissions ◽  
True Triaxial ◽  
Multi Stage ◽  
Fractal Characteristics ◽  
True Triaxial Compression

Brittle-ductile transition and failure mechanism of Jinping marble under true triaxial compression

2018 ◽  
Vol 232 ◽  
pp. 160-170 ◽  
Author(s):  
Jun Zhao ◽  
Xia-Ting Feng ◽  
Xi-Wei Zhang ◽  
Yan Zhang ◽  
Yang-Yi Zhou ◽  
...  
Keyword(s):  
Failure Mechanism ◽  
Triaxial Compression ◽  
True Triaxial ◽  
Brittle Ductile Transition ◽  
True Triaxial Compression ◽  
Jinping Marble

scholarly journals Influence of end effect on rock strength in true triaxial compression test

2017 ◽  
Vol 54 (6) ◽  
pp. 862-880 ◽  
Author(s):  
Y.H. Xu ◽  
M. Cai ◽  
X.W. Zhang ◽  
X.T. Feng
Keyword(s):  
Principal Stress ◽  
Failure Criterion ◽  
Rock Strength ◽  
Triaxial Compression ◽  
Numerical Approach ◽  
Compression Testing ◽  
End Effect ◽  
True Triaxial ◽  
The Coefficient Of Friction ◽  
True Triaxial Compression

The influence of the end effect on rock strength in true triaxial compression testing was studied using a numerical approach. The influence of the intermediate principal stress (σ2) on rock strength was isolated by using the two-dimensional Mohr–Coulomb failure criterion that depends only on the major principal stress (σ1) and minor principal stress (σ3). Thus, any enhancement to the rock strength with the increase of σ2 can be attributed to the end effect. It was shown that the end effect can result in an apparent σ2 effect, as long as the coefficient of friction (μ) at the rock specimen – steel platen contacts is not zero and the specimen in the σ2 loading direction is squat. When the strengthening due to the increase of σ2 predicted by a theoretical failure criterion was added to the strengthening due to the end effect, the results were in good agreement with the observed σ2 effect from some previous laboratory tests, indicating that the observed σ2 effect in true triaxial compression testing could be partially influenced by the end effect, particularly when σ3 was low. It is suggested to decrease the end effect to a level where the apparent σ2 effect is very small so that the obtained test results are more meaningful to characterize the actual σ2 effect.

Experimental Study of Failure Differences in Hard Rock Under True Triaxial Compression

2019 ◽  
Vol 52 (7) ◽  
pp. 2109-2122 ◽  
Author(s):  
Xia-Ting Feng ◽  
Rui Kong ◽  
Xiwei Zhang ◽  
Chengxiang Yang
Keyword(s):  
Experimental Study ◽  
Hard Rock ◽  
Triaxial Compression ◽  
True Triaxial ◽  
True Triaxial Compression

A Three-Dimensional Failure Criterion for Hard Rocks Under True Triaxial Compression

2019 ◽  
Vol 53 (1) ◽  
pp. 103-111 ◽  
Author(s):  
Xia-Ting Feng ◽  
Rui Kong ◽  
Chengxiang Yang ◽  
Xiwei Zhang ◽  
Zhaofeng Wang ◽  
...  
Keyword(s):  
Failure Criterion ◽  
Triaxial Compression ◽  
Three Dimensional ◽  
True Triaxial ◽  
Hard Rocks ◽  
True Triaxial Compression
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