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

Jinzhi Luo; Yanyan Cai; Jin Yu; Jianzhi Zhang; Yaoliang Zhu; Yao Wei

doi:10.1002/dug2.12061

Deep Underground Science and Engineering ›› 2024, Vol. 3 ›› Issue (1) :70 -90. DOI: 10.1002/dug2.12061

RESEARCH ARTICLE

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

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Abstract

• The development of the dynamic rock mechanics instrument is clarified, and the three major shortcomings of the existing instruments are summarized.

• Based on the conventional triaxial instrument, the first generation of the TFD-2000/D triaxial instrument was developed, which can apply disturbing load independently, implementing the function of cyclic disturbance and combined dynamic and static disturbances.

• The second generation of the TFD-2000/D triaxial instrument is improved to achieve variable amplitude cyclic loading, low-frequency high-level ground stress loading, and cyclic dynamic disturbance alternating with creep.

Keywords

complex stress conditions / deep rock / disturbance loading / modification of instrument / rock mechanics

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Jinzhi Luo, Yanyan Cai, Jin Yu, Jianzhi Zhang, Yaoliang Zhu, Yao Wei. Development and applications of the quasi-dynamic triaxial apparatus for deep rocks. Deep Underground Science and Engineering, 2024, 3(1): 70-90 DOI:10.1002/dug2.12061

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2023 The Authors. Deep Underground Science and Engineering published by John Wiley & Sons Australia, Ltd on behalf of China University of Mining and Technology.