小浪底引黄工程出水池竖井溜渣井疏通钻探施工技术

Drilling technology about dredging wells of slipping slag

摘要:

溜渣井在矿山开采、隧道工程中经常应用，淤堵事故时有发生，通过采用动力头钻机+绳索取心钻具，进行跟管钻进的方法疏通溜渣井。本文结合小浪底引黄工程溜渣井疏通施工实例，介绍了疏通方法、配套设备、操作规程及注意事项；总结了这次跟管钻进技术的经验与不足，为类似疏通工程的施工提供了简单实用的工法借鉴。

关键词:出水池竖井;溜渣井;淤堵事故;绳索取心钻具;跟管钻进

Abstract:

Slag slipping wells are often used in the projects of mining and tunneling, which can be dredged through drilling with casing by using top head drilling machine and wire-line core drilling tools to deal with the frequent clogging accidents. Based on the example of the slag slipping well dredging construction in Xiaolangdi Dam Yellow River diversion project, this paper introduces the dredging methods, supporting equipments, operation rules and attentions, summarizes the experience and deficiency of the drilling with casing to provide practical reference for similar dredging projects.

Key words:diversion shaft; slag slipping well; clogging accidents; wire-line core drilling tools; drilling with casing