对穿预应力锚索在煤矿井下地质病害治理中的应用

Application of Opposed Pre-stressed Anchor in Geological Disease Treatment in Underground Coal Mine

摘要:

胡家河矿井副井马头门因处于软岩地层中，在副井井筒安装中发生了较大的变形破坏，经分析论证对比，确定采用注浆锚索加固，通过对穿预应力锚索与短锚杆相结合，以锚索为主的加固方法进行施工，使软岩破坏变形趋于稳定，治理效果良好。

Abstract:

The horsehead of Hujiahe mine’s auxiliary shaft is located in soft rocks, serious deformation failure occurred in shaft case installment. By the analysis and demonstration, grouting anchor reinforcement was adopted by the combination of opposed prestressed anchor reinforcement with short anchor, and taking anchor as main reinforcement method, good effect of deformation treatment was received.