摘要
本文根据岩石力学原理,从理论上研究了采煤工作面煤壁内的塑性区范围,推导出了三维应力状态下估算煤壁内塑性区宽度的理论公式为阐明煤壁内塑性区宽度不仅与煤体各处的应力状态有关,而且还与采深及其它力学参数有关。文中还对影响塑性区宽度的各主要因素作了比较详细的讨论。
A theoretical formula for estimating width of plastic zone in coal rib under 3 D stress conditions is derived based on theoretical study according to the principle of rock mechanics.It isIt depicts that width of plastic zone in coal rib is related not only to stress conditions at all points, but also to mining depth and other mechanical parameters. The paper discusses in details all the major factors that affect the width of plastic zone.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1989年第1期16-22,共7页
Journal of China Coal Society
