Theory of the collapsed zone at the front of a coal seam and its effect on translatory rock bursting | Zendy

Lippmann H. | Zendy

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Theory of the collapsed zone at the front of a coal seam and its effect on translatory rock bursting

Author(s) -

Lippmann H.

Publication year - 1991

Publication title -

international journal for numerical and analytical methods in geomechanics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.419

H-Index - 91

eISSN - 1096-9853

pISSN - 0363-9061

DOI - 10.1002/nag.1610150503

Subject(s) - bursting , geology , geotechnical engineering , coal mining , front (military) , coal , stress (linguistics) , engineering , linguistics , oceanography , philosophy , neuroscience , biology , waste management

If the slope of the uniaxial stress–strain diagram in the post‐failure regime is steep enough, it is shown, using a simplified (‘elementary’) theory, that the frontal zone of a coal seam close to a cavity may suddenly collapse. This collapse, well known from in situ , evidence, is also shown to reduce in most cases the danger of initiation or the strength of a subsequent coal mine bump.

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