采空区下孤岛工作面矿压显现规律研究  

Study on Mine Strata Pressure Behavior Law of Coal Mining Face in Seam Island under Goaf

作　　者：李志华[1] 华心祝[1] 杨科[1] 杨积海[2] 刘乐枝[2] 

机构地区：[1]安徽理工大学煤矿安全高效开采省部共建教育部重点实验室,安徽淮南232001 [2]淮浙煤电公司顾北煤矿,安徽淮南232151

出　　处：《煤炭工程》2013年第11期72-74,78,共4页Coal Engineering

基　　金：国家自然科学基金项目(51174002;51074003);安徽理工大学博士科研启动基金资助项目(11057)

摘　　要：以顾北煤矿1232(1)采空区下孤岛工作面地质条件为背景,采用FLAC3D数值模拟软件对比分析了采空区下孤岛工作面矿压显现规律与一般孤岛工作面的差异。研究表明:受上覆煤层采动影响,会引起下方孤岛面煤体卸压,所以采空区下孤岛面相对于实体煤下孤岛面矿压显现不显著。通过现场实测分析,数值模拟所得的矿压显现规律与实测结果相吻合,说明利用数值模拟的方法确定采空区下孤岛面矿压显现是可行的。Based on the geological condition of the coal mining face in the seam island under the mining goaf of No. 1232 （ 1 ） coal mining face in Gubei Mine as a background, a FLAC3D numerical simulation software was applied to compare and analyze the difference between the mine strata pressure behavior law of the coal mining face in the seam island under the mining goat＂ and the coal mining face in the general seam island. The study showed that under the above seam mining influences, the seam pressure of the island coal mining face under the above mining seam would be released and the mine strata pressure behavior in the island coal mining face under the mining goaf would not be obvious in comparison with the mine strata pressure behavior of the coal mining face in the seam island under the above solid seam. With the site measurement and analysis, the mine strata pressure behavior law obtained from the numerical simulation could be well fitted with the site measured results, which could show that the application of the numerical simulation method to determine the mine strata pressure behavior of the coal mining face in the seam island under the goaf was feasible.

关 键 词：采空区 孤岛工作面 矿压显现 数值模拟 实测分析 

分 类 号：TD323[矿业工程—矿井建设]