Instability leading to coal bumps and nonlinear evolutionary mechanisms for a coal-pillar-and-roof system
نویسندگان
چکیده
منابع مشابه
Instability leading to coal bumps and nonlinear evolutionary mechanisms for a coal-pillar-and-roof system
This paper studies the unstable mechanisms of the mechanical system that is composed of the stiff hosts (roof and floor) and the coal pillar using catastrophe theory. It is assumed that the roof is an elastic beam and the coal pillar is a strain-softening medium which can be described by the Weibull s distribution theory of strength. It is found that the instability leading to coal bump depends...
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ژورنال
عنوان ژورنال: International Journal of Solids and Structures
سال: 2006
ISSN: 0020-7683
DOI: 10.1016/j.ijsolstr.2005.06.087