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Verification of a novel stress path method by true-triaxial test [PDF]

Scientific Reports
To verify the novel method of achieving a true-triaxial stress path with the pseudo-triaxial apparatus, a series of drained and undrained tests were carried out for the identical scheme with pseudo-triaxial apparatus and true-triaxial apparatus ...
Zhigang Ma, Xuefeng Li, Longlong Lv
doaj   +4 more sources

True-Triaxial Drained Test of Tengger Desert Sand [PDF]

Advances in Civil Engineering, 2020
For the lack of accurate test results in design and maintenance of desert-crossing highways in the Tengger Desert of western China, the GDS true-triaxial system was used to conduct the drained test on dense sand.
Xuefeng Li, Zhigang Ma, Wennan Lu, Yandong Wang   +3 more
doaj   +2 more sources

Evolution of mechanical properties and acoustic emission characteristics of granite with normal stress under true triaxial shear test [PDF]

Scientific Reports
Shear failure is a typical failure mode of surrounding rock in underground excavations. The mechanical properties and damage evolution characteristics of rock under true triaxial shear conditions are essential for stability evaluation and monitoring ...
Jizhe Guo, Zengchao Feng, Bichuan Zhang, Xuecheng Li, Yongxing Shen, Jiaqi Liu, Zhuochao Yan, Haosen Wang   +7 more
doaj   +2 more sources

Glass Beads Test with True Triaxial Stress Path Achieved by Conventional Triaxial Apparatus

Fractal and Fractional
The impact of fabric anisotropy, fractal dimension, and breakage on the strength and deformation of granular materials were diminished by uniform-size spherical glass beads.
Xuefeng Li, Jiahui Ma, Longlong Lv
doaj   +2 more sources

Calculation method and evolution rule of the strain energy density of sandstone under true triaxial compression [PDF]

Scientific Reports
Deep rock masses are typically in complex stress states, and research on the evolution of their strain energy density is of highly important for understanding their failure characteristics.
Liu Zhixi, Zhao Guangming, Meng Xiangrui, Gu Qingheng   +3 more
doaj   +2 more sources

A multi-scale observation and crack statistics based method for analyzing failure mechanism of pre-flawed rock under true triaxial stress. [PDF]

PLoS ONE
Understanding the failure mechanism of the rock mass under the general stress state is of great importance for the safe constructions of the underground engineering.
Bangxiang Li, Xiaoqun Wang, Hongbo Zhao, Dongyang Xu, Guanhua Wang, Tian Su, Xuelei An   +6 more
doaj   +2 more sources

A novel true triaxial test system for microwave-induced fracturing of hard rocks

Journal of Rock Mechanics and Geotechnical Engineering, 2021
This study introduces a test system for microwave-induced fracturing of hard rocks under true triaxial stress. The test system comprises a true triaxial stress loading system, an open-ended microwave-induced fracturing system, a data acquisition system ...
Xia-Ting Feng, Jiuyu Zhang, Chengxiang Yang, Jun Tian, Feng Lin, Shiping Li, Xiangxin Su   +6 more
doaj   +1 more source

Study of the mechanical characteristics of coal-serial sandstone after high temperature treatment under true triaxial loading

Scientific Reports, 2023
In this study, a series of true triaxial loading tests were carried out on coal-measure sandstone after high temperature treatment by using a self-developed true triaxial test system combined with acoustic emission (AE) monitoring, and the mass loss ...
Shuai Wang, Lianguo Wang, Bo Ren, Ke Ding, Chongyang Jiang, Jiaxing Guo   +5 more
doaj   +1 more source

Research on the mechanical characteristics of granite failure process under true triaxial stress path

Rock and Soil Mechanics, 2021
The true triaxial loading and unloading tests on granite were conducted to obtain the mechanical characteristics of the granite in the construction area of an underground cavern.
LIU Jie, ZHANG Li-ming, CONG Yu, WANG Zai-quan   +3 more
doaj   +1 more source

True Triaxial Strength Testing of Sandstones [PDF]

Proceedings, 2013
Laboratory rock mechanical tests allow estimation of rock strength and deformation behaviour under stress states similar to the in-situ conditions. In general, the in-situ stresses are described by three principal stresses, the vertical, maximum and minimum horizontal stresses.
H. Jafary Dargahi, V. Minaeian, V. Rasouli, D.N. Dewhurst   +3 more
openaire   +1 more source