摘要
本文借助于有限元计算方法,研究了巷道围岩,特别是底板岩层在自重应力及采动影响下的应力分布和破坏情况,找出了李子垭矿回采巷道底臌原因及影响因素,为制定防治回采巷道底臌措施提供了依据,对研究其它矿的巷道底臌问题也具有指导意义。
Using the finite element method, this paper studies the stress distribution and fracture of surrounding rock of entries, especiallg the entry, floors, under the effect of gravity stress and coal mining. The reasons and affecting factors of floor heaving in Liziya Coal Mine are diocovered provides a basis for formulating controlling measures of floor heaving of the mine, the research also has directive signitiecnce for solving the floor heaving problem in other coal mines.
出处
《山东矿业学院学报》
CAS
1992年第4期352-356,共5页
Journal of Shandong University of Science and Technology(Natural Science)
关键词
回采巷道
底板
底板隆起
有限元
entry
floor
floor heaving
rock fracture
plastic flow
the finite element method