Uniaxial stress relaxation behavior of marble after cyclic disturbance loads

Zhu, Yuefei; Yu, Jin; Zhou, Xianqi; Yang, Zhehao; Tang, Xin; Liu, Xueying

doi:10.1007/s11043-020-09458-w

Cited by 10 publications

(5 citation statements)

References 54 publications

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“…Many other applications of the second‐generation instrument were attempted in this study by the research team, but due to the space constraint, only a partial introduction is presented in this article. The details can be obtained from the literature (Chen et al, 2022; Yu et al, 2021, 2022; Zhu et al, 2021).…”

Section: Second Upgradation Of the Quasi‐dynamic Triaxial Instrumentmentioning

confidence: 99%

Development and applications of the quasi‐dynamic triaxial apparatus for deep rocks

Luo,

Cai,

et al. 2023

Deep Underground Science and Engineering

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The mechanical behaviors of deep rocks have always posed a challenge for the implementation and safe operation of major underground engineering projects. To this end, this study modified the existing mainstream rock mechanics instruments equipped with a dynamic disturbance loading system and developed a second‐generation TFD‐2000/D triaxial instrument. The first‐generation device is equipped with an independent disturbance system and an advanced EDC‐580 all‐digital servo controller, which can apply disturbing load independently, implement the function of cyclic disturbance, and combine dynamic and static disturbances. The instrument was found to be reliable for use in analyzing the damage process of rocks in the disturbance test of marbles. The second‐generation instrument tackles three limitations of the first‐generation instrument: (i) it upgrades the strain measurement system and uses extensometers with linear variable differential transformers to accurately measure deformation; (ii) it uses the self‐balanced chamber to replace the Hoek–Franklin triaxial cell and auto‐balancing triaxial pressure chamber; and (iii) the loading rod is independently equipped with an EDC‐580 all‐digital servo controller, which measures precise loads. The experimental findings confirmed that the second‐generation instrument can be used for rock mechanics testing under cyclic disturbance loading, the disturbance–stress relaxation cycle, and the creep–fatigue cycle. In this sense, the second‐generation instrument can be a useful addition to deep rock mechanical instruments and provide a valuable reference.

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Section: Second Upgradation Of the Quasi‐dynamic Triaxial Instrumentmentioning

confidence: 99%

Development and applications of the quasi‐dynamic triaxial apparatus for deep rocks

Luo,

Cai,

et al. 2023

Deep Underground Science and Engineering

Self Cite

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“…The majority of current research focuses on how cyclic loading parameters affect the mechanical behavior and damage of rock mass. The studied loading parameters mainly include the waveform (Taheri et al, 2016), amplitude (Vaneghi et al, 2020b;Wang et al, 2020;Zhu et al, 2021), frequency (Li et al, 2020), stress level (Chen et al, 2020), number of cycles (Chen et al, 2017), loading rate (Huang and Li, 2014;Meng et al, 2016Meng et al, , 2019Zhang et al, 2018). In particular, the effect of waveforms, i.e.…”

Section: Introductionmentioning

confidence: 99%

Deformation and damage properties of rock-like materials subjected to multi-level loading-unloading cycles

Liu

Cao

Zhao

et al. 2023

Journal of Rock Mechanics and Geotechnical Engineering

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“…In recent years, numerous scholars have conducted many experimental studies on the fracture characteristics of different types of rocks under cyclic loads. Zhu et al [10] developed a disturbance electro-hydraulic servo triaxial test system. A series of disturbance relaxation tests on marble with different frequencies and amplitudes were carried out.…”

Section: Introductionmentioning

confidence: 99%

Fracture and Damage Characteristics of Granite under Uniaxial Disturbance Loads

Fei

Wang

et al. 2022

Buildings

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To investigate the mechanical properties and damage characteristics of granite under frequent disturbance loads in the process of underground engineering construction, laboratory uniaxial compression tests were conducted on granite under combined dynamic and static loading conditions. The following conclusions were reached: (1) under a dynamic disturbance, the failure stress of granite grows gradually as the initial stress and disturbance load rise due to the coupling of damage and strain-rate effect; (2) the characteristic stresses of granite specimens grow with the increasing amplitude of disturbance Δσ under the disturbing loads; with the same Δσ, the characteristic stresses show an increase trend with the increasing initial stress σm; (3) the particle size distribution of rock fragments broken under the disturbance load follows the fractal law, and the fractal dimension F gradually enlarges with the growth of Δσ, indicative of an increased degree of fragmentation; and (4) the damage variable grows rapidly at first, then steadily, and, finally, shows a rapid growth trend again under the disturbance loads. The Δσ significantly influences the number of cycles and rate of change of the damage variable during the steady increase. This research has certain theoretical significance and engineering guidance value for dynamic disaster recognition and control.

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Uniaxial stress relaxation behavior of marble after cyclic disturbance loads

Cited by 10 publications

References 54 publications

Development and applications of the quasi‐dynamic triaxial apparatus for deep rocks

Development and applications of the quasi‐dynamic triaxial apparatus for deep rocks

Deformation and damage properties of rock-like materials subjected to multi-level loading-unloading cycles

Fracture and Damage Characteristics of Granite under Uniaxial Disturbance Loads

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