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Failure criterion for soft rocks considering intermediate principal stress

International Journal of Mining Science and Technology, 2021
The significant differences between hard rocks (more brittle) and soft rocks (more ductile) may suggest the use of different failure criteria. A strength criterion for soft rocks that includes intermediate principal stress was proposed. The new criterion
Zhongwei Wang, Quansheng Liu
doaj   +3 more sources

The effect of the intermediate principal stress on pillar strength

International Journal of Coal Science & Technology
Room and pillar mining is an underground mining method that utilizes natural pillar support to control rock mass behavior, ensuring mine stability and a safe mine environment.
Duncan Maina, Heinz Konietzky
doaj   +3 more sources

Effect of Principal Stress Rotation and Intermediate Principal Stress Changes on the Liquefaction Resistance and Undrained Cyclic Response of Ottawa Sand [PDF]

Journal of Geotechnical and Geoenvironmental Engineering, 2022
In laboratory testing, the liquefaction resistance of sands is typically evaluated using cyclic triaxial and simple shear tests. These tests cannot be used in a rigorous manner to systematically assess the effects of principal stress rotation and intermediate principal stress changes on the undrained cyclic response of sands.
Erdem O. Tastan, J. Antonio H. Carraro
openaire   +4 more sources

Effect of intermediate principal stress on the stability of slopes [PDF]

Archives of Civil Engineering
The intermediate principal stress (σ2 ) effect is a mechanical property inherent in many rock and soil materials. However, the effect of σ2 is often ignored in slope stability analyses, and its impact on slope stability is seldom investigated.
Zongyuan Ma, Lei Liu
doaj   +2 more sources

Investigation of the influence of intermediate principal stress on the dynamic responses of rocks subjected to true triaxial stress state

International Journal of Mining Science and Technology, 2021
Precisely understanding the dynamic mechanical properties and failure modes of rocks subjected to true triaxial stress state (σ1 > σ2 > σ3, where σ1, σ2, and σ3 are the major principal stress, intermediate principal stress, and minor principal stress ...
Wei You, Feng Dai, Yi Liu, Hongbo Du, Ruochen Jiang   +4 more
doaj   +2 more sources

Stability analysis of a tunnel face reinforced with bolts considering the intermediate principal stress component [PDF]

Scientific Reports
The stability of the tunnel face during excavation is a critical issue in tunnel construction. Traditional methods have offered various approaches for analyzing tunnel face stability but often neglect complex factors such as the intermediate principal ...
Kai Xu, Xiang Chen, Gaofeng Luo, Xuebing Hu, Yong Li, Feng Dai, Junchao Chen   +6 more
doaj   +2 more sources

Experimental study on mechanical properties of fissured loess under true triaxial conditions [PDF]

Scientific Reports
Fissured loess is one of the important factors that cause geological disasters in the Loess Plateau. This paper analyzes the mechanical characteristics of fissured loess under different confining pressures and different intermediate effective principal ...
Jielong Sun, Rui Chen, Xingyu Qin, Bing Lou, Yu Wang, Wenbo Li   +5 more
doaj   +2 more sources

Study on calculation of nonlimit passive earth pressure of unsaturated soil behind retaining wall [PDF]

Scientific Reports
The accurate calculation of soil pressure behind retaining walls is essential for their design and construction. Currently, research on the non-limit soil pressure of unsaturated soil behind retaining walls is limited.
Yaxin Zhang, Wenchao Gu, Qiliang Xu, Shuai Zhang, Jie Huang, Shiyuan Huang   +5 more
doaj   +2 more sources

Influence of orientation of the intermediate principal stress on fracture reactivation in granite

Journal of Rock Mechanics and Geotechnical Engineering
Fracture (fault) reactivation can lead to dynamic geological hazards including earthquakes, rock collapses, landslides, and rock bursts. True triaxial compression tests were conducted to analyze the fracture reactivation process under two different ...
Wei Wang, Fanzhen Meng, Zhufeng Yue, Guanghao Cui, Qijin Cai, Zhiyuan Li, Dongliang Tian, Hui Zhou, Zaiquan Wang   +8 more
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Modified true triaxial Hoek-Brown criterion considering intermediate principal stress effect

Meitan kexue jishu
In order to improve the Hoek-Brown strength criterion not considering the influence of intermediate principal stress on rock strength, the evolutions of rock strength were investigated according to the results of the rock true triaxial compression test ...
Yapeng LI, Xiaosuo WU, Qiang ZHANG, Binsong JIANG   +3 more
doaj   +2 more sources