摘要
赵家寨矿12209下付巷沿空留巷施工流程包括"扩巷-充填",通过理论分析计算,确定充填墙尺寸为2.2m,使用FLAC3D软件模拟扩巷尺寸为2.5、3.0、3.5、4.0m时巷道位移及围岩塑性区分布情况,确定12209下付巷扩巷尺寸为3.5m。提出4种扩巷后支护方案,确定"锚杆+锚索+液压抬棚"为最优方案,并在现场取得了成功应用。
The construction process of gob-side entry retaining in 12209 Zhaojiazhai Mine includes"expanding lane and filling".Calculated by theoretical analysis,the size of the filling wall is determined as 2.2 m,and FLAC3D software is used to simulate the displacement of roadway and the distribution of surrounding plastic zone of 2.5 m,3.0 m,3.5 m and 4 m.It is determined that the size of 12209 lower lane is 3.5 m.Four kinds of support schemes after road expansion are proposed,and the"anchor+anchor cable+hydraulic lifting shed"is determined as the best solution,and successfully applied on site.
作者
李亮
姜彦军
于涛
韩冰
彭博
LI Liang;JIANG Yanjun;YU Tao;HAN Bing;PENG Bo(School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo 454003,China;Hebei Energy College of Vocation and Technology,Tangshan 063000,China;Xinzheng Coal Electricity Co.,Ltd.,Zhengzhou Coal Industry Group,Xinzheng 451100,China;Three Soft Coal Seam Mining Engineering Technology Research Center of Henan Province,Zhengzhou 450042,China;Technology Center of Sichuan Province Coal Industry Group,Chengdu 610091,China)
出处
《煤矿安全》
CAS
北大核心
2019年第10期107-111,共5页
Safety in Coal Mines
基金
国家安监局2016年安全生产重大事故防治关键技术科技资助项目（henan-0003-2016AQ）
河南理工大学博士基金资助项目（B2016-49）
河南省教育厅高等学校重点科研资助项目（16A440006）
关键词
三软煤层
厚顶煤
回采巷道
扩巷尺寸
围岩控制
"three soft"coal seam
thick top coal
mining roadway
expansion lane size
surrounding rock control
