Short communication. A numerical analysis of the foot-floor interaction in long wall workings

Short communication. A numerical analysis of the foot-floor interaction in long wall workings

A mathematical and numerical approach for the description of creep and failure of coal around a longwall is given. Two coal strata are considered. They are assumed to be elasto-viscoplastic. The variation in time of the stress and displacement around the excavation, as well as the limit thickness of...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:International journal for numerical and analytical methods in geomechanics 1994-01, Vol.18 (9), p.641-652
Hauptverfasser: Cristescu, Nicolae, Ionescu, Ioan R, Rosca, I
Format: Artikel
Sprache:eng
Schlagworte:
Coal
Creep
Elasticity
Excavation
Failure (mechanical)
Floors
Mathematical models
Numerical analysis
Retaining walls
Stress analysis
Viscoplasticity
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A mathematical and numerical approach for the description of creep and failure of coal around a longwall is given. Two coal strata are considered. They are assumed to be elasto-viscoplastic. The variation in time of the stress and displacement around the excavation, as well as the limit thickness of the upper stratum which would avoid failure was found.
ISSN:0363-9061