急倾斜煤层预应力锚杆作用效果研究  

Research on the effect of pre-stressed bolt in steeply inclined coal seam

作　　者：秦仕伟[1] 刘阳[1] 李阳[1] 

机构地区：[1]信息产业部电子综合勘察研究院,陕西西安710054

出　　处：《陕西煤炭》2016年第5期39-41,共3页Shaanxi Coal

基　　金：2016年陕西省创新人才推进计划项目(2016KCT-13);2016陕西省科技统筹创新工程计划项目(2016KTZDSF04-05-04);2016陕西省社会发展科技攻关项目(2016SF-455)

摘　　要：利用布辛奈斯克解推导了巷道横向挤压力与距锚杆距离大小的解析解,指出只有当锚杆横向挤压力最小值满足了稳定性控制时,巷道围岩才能形成一定的承载能力,并发挥其对围岩的控制作用。推导出的计算公式成功运用到急倾斜煤层巷道支护设计中,为类似巷道支护设计提供了较为可靠的理论基础。By using Boussinesq＇s Equation,the analytic solution of lateral extrusion pressure with its distance to anchor bolt was deduced. The result shows that the surrounding rock of roadway can form a certain load capacity and control the surrounding rock when the minimum value of the lateral extrusion pressure of the anchor bolt meets the stability control of the roadway. The deduced computational formula was used to design roadway support in steeply inclined coal seam,which provides reliable theoretical basis for similar roadway support design.

关 键 词：急倾斜煤层 预应力 解析解 巷道支护 

分 类 号：TD353.6[矿业工程—矿井建设]