摘要
井下采空区发生自燃发火在确定疑似火点的情况下,能否将钻孔通过冒落带、裂隙带到达火点附近成为灭火的关键。针对打钻过程中出现钻孔弯曲的原因从地质因素、工艺技术因素进行分析,介绍了采空区下注浆钻杆的特殊要求和应用实例。
In the case of determining the point of suspected fire underground air spontaneous combustion,whether drill can go through the caving zone,fracture zone near a fire is a key.Direct to the reasons for drilling bending during drilling,geological factors,the technology factors are analyzed,and the special requirements of grouting drill and application examples in goaf are introduced.
出处
《煤炭技术》
CAS
北大核心
2011年第8期129-130,共2页
Coal Technology
关键词
钻孔弯曲
注浆钻杆
现场应用
drilling bending
grouting drill
field application
