常村矿厚煤层巷道底鼓控制技术应用  

Application of Floor Heave Control Technology in Thick Coal Seam in Changcun Colliery

作　　者：袁小晨 Yuan Xiaochen(Changcun Colliery,Lu'an Environmental Energy Stock Co.,Changzhi,Shanxi 046200)

机构地区：[1]潞安环能股份公司常村煤矿,山西长治046200

出　　处：《江西煤炭科技》2020年第3期8-10,14,共4页Jiangxi Coal Science & Technology

摘　　要：为解决常村矿厚煤层2206运输平巷底鼓问题:首先,对巷道进行底鼓变形分析,计算得出底板破坏深度为1.55 m,确定底鼓类型为中部局部鼓起,求解出底鼓量为525 mm;其次,对巷道底鼓采取整体控制原则,为选择合理的支护方案,采用数值模拟方法对比3种支护方案,确定了“原支护加强方案+底脚锚杆+注浆加固”支护方案。经现场观测,巷道底鼓量最大值为120 mm,顶板下沉量为75 mm,两帮内移量为94 mm,整体而言,巷道底鼓控制效果明显,整体支护效果良好。In order to solve the problem of floor heave of thick coal seam at 2206 haulage entry of Changcun Colliery,the floor heave deformation analysis was carried out in the roadway.The author determines the support scheme of"original support reinforcement scheme,anchor bolt and grouting reinforcement"by comparison with two other selected support schemes by numerical simulation,with the maximum floor heave of 120 mm,the roof subsidence of 75 mm;and the interior displacement of two sides of 94 mm,which helps to control the floor heave effectively with good support effect.

关 键 词：厚煤层 软底板 控制底鼓变形 数值模拟 整体控制 

分 类 号：TD327.3[矿业工程—矿井建设]