中文摘要：

基于弱场控制原理,以煤柱顶板整体系统为例,分析包括强度弱场、刚度弱场和稳定性弱场控制下的煤柱顶板应力及位移演化规律,证实了煤柱顶板系统整体稳定性受弱场控制。研究结果表明:煤柱顶板整体系统可以同时存在多个弱场,而各个局部弱场的主导作用随着外部环境的改变而可以相互转化,并对应着不同的破坏模式。对于煤柱顶板整体系统而言,局部弱场具有层次性,煤柱、顶板子系统的强度弱场或刚度弱场构成了局部稳定性弱场,局部稳定性弱场对煤柱顶板整体系统的稳定性起到控制作用。

英文摘要：

In this paper,analysis was carried out on the the coal pillar roof stress and displacement evolution law under the control of the intensity weak field,stiffness weak field and stability weak field based on the weak field control theory and by taking the whole system of the coal pillar roof as an example,and it was confirmed that the whole system stability of the coal pillar roof was controlled by the weak field.The research results showed that multiple weak fields might exist in the whole system of the coal pillar roof at the same time,the leading function of each local weak field could transform each other with the change of the external environment,and corresponded to a different failure mode.For the whole system of the coal pillar roof,the local weak field had the hierarchy,the intensity weak field or stiffness weak field of the coal pillar and roof subsystem constituted the weak field of the local stability,and the weak field of the local stability had the control effect on the stability of the whole system of the coal pillar roof.