摘要
大屯庄矿Z30111工作面是在Z2091工作面采后进行回采,为分析重复采动后Z30111工作面的底板破坏范围,采用3DEC软件建立数值模拟模型,先对开采Z2091工作面的底板破坏范围进行分析,然后在Z2091工作面开采后再对Z30111工作面回采过程中的底板破坏范围发育情况进行分析。结果表明:在Z2091工作面开采过程中底板岩层的最大破坏深度为21.36 m,破坏贯穿其下部的11号煤层;Z2091工作面采后再回采Z30111工作面,其底板最大破坏深度值为20.3 m。
The Z30111 working face of Datunzhuang Coal Mine was conducted after Z2091 working face mining stope,for analyzing after repeating Z30111 mining work face,the floor area of damage with 3DEC software numerical simulation model is set up,first to destroy Z2091 mining working face bottom range is analyzed,and then after Z2091 working face mining for Z30111 development situation floor area of damage in the process of mining face is analyzed.The results show that the maximum damage depth of the rock strata in the Z2091 working face is 21.36 m,which damages the coal seam No.11 Z2091 working face,Z30111 working face,the maximum damage depth of the bottom plate is 20.3 m.
作者
李文芳
LI Wenfang(The Coal Industry Bureau on the Outskirts of Changzhi City,Changzhi046000,China)
出处
《煤》
2018年第3期4-6,40,共4页
Coal
基金
国家自然科学基金资助项目(51774136)
"十三五"国家重大研发计划项目(2017YFC0804100)
关键词
底板破坏范围
重复采动
数值模拟
3DEC
damage scope of floor plate
repeated mining
numerical simulation
3DEC
