摘要
为了对房柱法开采所形成的采空区稳定性和安全状况进行有效的评估,基于改进的从属面积承载理论(ITAT)和普氏理论分别对构成空区稳定的两大要素(矿柱和矿房顶板)的稳定性进行计算分析;在此基础上,进一步采用数值模拟方法分析空区影响范围内的应力和位移变化情况。计算分析和模拟结果均表明,矿山目前采用房柱法开采所形成的空区是稳定的,能够满足矿山今后的安全生产需要。
Two major elements（ore pillar and chamber roof ） for the goaf stability are calculated and analyzed based on the im- proved ITAT and Protojiakonov＇s theory to effectively evaluate the goal stability and safety situations of the goaf created in min- ing operation with the room and pillar mining method. On this basis, the stress and displacement changes of the goaf effective area are further analyzed using the numerical simulation method. Calculation analysis and simulation results show that the goaf cre- ated by the room and pillar mining method is stable and is able to meet the needs of safety production in the future.
出处
《化工矿物与加工》
CAS
北大核心
2016年第9期40-43,共4页
Industrial Minerals & Processing
关键词
房柱法
改进的面积承载理论
普氏理论
三维有限元模拟
room and pillar method
ITAT
Protojiakonov＇ s Theory
three-dimensional finite element simulation
