工作面滞后支承压力分布规律  

Distributing discipline of abutment pressure behind working face

作　　者：樊胜强[1] 邹喜正[1] 刘国梁[1] 

机构地区：[1]中国矿业大学能源与安全工程学院,江苏徐州221008

出　　处：《黑龙江科技学院学报》2006年第2期78-81,共4页Journal of Heilongjiang Institute of Science and Technology

基　　金：国家自然科学基金项目(50490273);教育部博士点基金项目(20030290017)

摘　　要：为获得综采工作面滞后支承压力的分布规律,采用理论分析、数值模拟及现场实测的方法,对兖州矿区工作面滞后支承压力分布规律进行了分析.分层开采与综放开采工作面滞后支承压力变化规律是,随着采高的增大,工作面滞后支承力的距离加大,垂直应力集中系数差别不大.实例结果表明：分层滞后支承压力在工作面后方160～180m以外稳定,综放工作面在其后方200 m以外稳定.In order to gain the distributing variational discipline of abutment pressure behind the full- y-mechanized sub - level and slice mining working face, this paper analyses the distribution of abutment pressure behind working face in Yanzhou mining area by utilizing the methods of theoretical analysis, nu- merical simulation and spot test. The lag distance of abutment pressure behind working face increases, but the convergence coefficient of vertical stress doesn＇t change obviously with the increase of mining height. Practical examples indicate that the distributing variational discipline of abutment pressure is stable when it is in the back of working face, between 160 and 180 m , the fully-mechanized sub-level and slice mining working face is stable when it is in the back of 200 m.

关 键 词：综放与分层工作面 滞后支承压力 数值模拟 

分 类 号：TD323[矿业工程—矿井建设]