Rockburst mechanism research and its control

A new rockburst classification, innovative works in developing a “strainburst test machine” and an “impact-induced rockburst test machine” that can reproduce rockbursts in laboratory were researched. New concepts were proposed regarding the stress paths that take into account both the static and dyn...

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Bibliographic Details
Published inInternational journal of mining science and technology Vol. 28; no. 5; pp. 829 - 837
Main Authors He, Manchao, Ren, Fuqiang, Liu, Dongqiao
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2018
Elsevier
Subjects
Energy-absorbing bolt
Rockburst
Rockburst control
Stress paths
Energy-absorbing bolt
Rockburst
Rockburst control
Stress paths
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Summary:A new rockburst classification, innovative works in developing a “strainburst test machine” and an “impact-induced rockburst test machine” that can reproduce rockbursts in laboratory were researched. New concepts were proposed regarding the stress paths that take into account both the static and dynamic stresses analogous to that at excavation boundaries for generating artificially-induced strainburst and impact-induced rockburst. As an important method for rockburst control, a novel energy-absorbing bolt was developed, which has a constant-resistance under both static and impact loadings and a large-elongation capacity for containing large deformations of rock masses under burst-prone conditions.
ISSN:2095-2686
DOI:10.1016/j.ijmst.2018.09.002