摘要
为解决芦岭煤矿II82新回风上山在上覆工作面跨采过程中的大变形问题,利用现场调研、数值模拟等手段,研究了跨采影响下底板软岩巷道围岩变形特征。针对II82新回风上山的具体情况,提出了二次高强锚网索+注浆+底板锚索综合控制技术。现场监测表明,巷道围岩的变形破坏得到了有效控制。
To solve the large deformation problem of II82 new return-air rise in Luling coal mine during across mining of overlying face, by using site investigation and numerical simulation methods , the deformation characteristics of high-stress soft rock roadway in floor during across mining have been researched. In the light of IIs2 new return-air rise, the control technology of second high-strength boltmesh-cable-grouting with cable in floor was proposed. Field monitoring showed the surrounding rock deformation and failure of roadway were controlled effectively.
出处
《煤炭技术》
北大核心
2016年第9期65-67,共3页
Coal Technology
关键词
跨采
高应力软岩
采动影响
底板巷道
across mining
high-stress soft rock
mining influence
roadway in floor
