深井特厚泥岩底板巷道锚注联合修复技术

Remediation Technology of Combinning Bolt and Grouting for Special Thick Mudstone Floor Roadway in Deep Well

针对巷道的变形破坏特点,提出针对巷道底板并对顶帮薄弱部位进行加固的锚注联合修复技术,并采用FLAC3D3.0数值模拟软件对锚注联合修复的修复效果进行模拟,效果显著。在蒋家河煤矿回风大巷修复工程中的应用表明,修复后巷道200 d内底鼓量183 mm,顶板下沉量44 mm,两帮移近量86 mm,修复效果良好。

Floor is deformation and failure firstly for this characteristic,raise a technology base on high preload anchor cable and grouting, the repairing effect was tested by FLAC3D3.0. This remediation technology was successfully applied in roadway of return airway in Jiangjiahe mine, the results show after repairing roadway,that floor bulging is 183 mm,the roof subsidence is 44 mm and the reduced the amount of roadside is 86 mm in 200 days.