摘要
分析了三软煤层巷道的围岩特征,指出这类巷道支护的关键技术,提出了现行存在的一些切实可行的联合支护方案。并结合林南仓矿的具体工程实例分析了其中一种U形钢+锚网的联合支护方案。通过数值模拟和现场监测表明,这种方案能有效地控制围岩变形,U形钢+锚网联合支护是一种切实可行的三软煤层巷道支护方式。
The surrounding rock characteristics in the three soft coal seam roadway was analyzed,and pointed out the key technologies of this kind of roadway support,and put forward the present combined support scheme which is practical and feasible,combined with the engineering examples of Linnancang mine and analyzed one of the U-steel and anchor net combined support plan.Which showed that this scheme can effectively control the deformation of the surrounding rock through the numerical simulation and field monitoring.It indicated that U-steel and anchor net combined support is a kind of feasible way in the three soft coal seam roadway supporting.
出处
《煤炭技术》
CAS
北大核心
2014年第4期118-121,共4页
Coal Technology
关键词
三软煤层
联合支护
锚网喷支护
注浆加固
three soft coal seam
combined support
bolt-mesh-spurting supporting
grouting reinforcement
