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Rock Mechanics and Rock Engineering
Erschienen in: Rock Mechanics and Rock Engineering 2/2021

07.11.2020 | Original Paper

A Novel True Triaxial Apparatus for Simulating Strain Bursts Under High Stress

verfasst von: Manchao He, Jieyu Li, Dongqiao Liu, Kai Ling, Fuqiang Ren

Erschienen in: Rock Mechanics and Rock Engineering | Ausgabe 2/2021

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Abstract

This paper introduces a new high-pressure servo true triaxial rockburst experimental apparatus that can realize multi-face rapid unloading in the horizontal direction. The apparatus is used to simulate different types of strain burst phenomena in deep underground engineering, such as those at roadways, roadway intersections, and pillars with three and four free faces. In the research and development process, apparatus technologies were included to overcome five key challenges: rapid unloading under high pressure, loading gap removal fixture, three-way loading alignment, symmetrical loading, and system stability after unloading. The apparatus is used to carry out multi-face unloading strain burst experiments and can fully satisfy the experimental requirements. The entire strain burst process is recorded using a high-speed camera. The apparatus can provide experimental support for strain burst mechanism research and an experimental basis for different types of strain burst research.
Vorheriger Artikel Effect of Grain Size on the Mechanical Behaviour of Granite Under High Temperature and Triaxial Stresses
Nächster Artikel Experimental Study on Rock Strength and Deformation Characteristics Under Triaxial Cyclic Loading and Unloading Conditions

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Metadaten
Titel
A Novel True Triaxial Apparatus for Simulating Strain Bursts Under High Stress
verfasst von
Manchao He
Jieyu Li
Dongqiao Liu
Kai Ling
Fuqiang Ren
Publikationsdatum
07.11.2020
Verlag
Springer Vienna
Erschienen in
Rock Mechanics and Rock Engineering / Ausgabe 2/2021
Print ISSN: 0723-2632
Elektronische ISSN: 1434-453X
DOI
https://doi.org/10.1007/s00603-020-02285-y

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