开滦 (集团 )有限责任公司东欢坨矿副井井筒开凿进入基岩后 ,为了加快建井速度 ,改工作面预注浆为地面预注浆 ,实现了下部地面预注浆与上部凿井平行作业。本文结合工程实例 ,介绍了定向斜孔的施工方法和地面预注浆施工工艺 Kailuan (Group) Co., Ltd. Donghuan Tuo mine shaft mine shaft drilled into the bedrock, in order to speed up the construction of speed, the surface pre-grouting for the ground pre-grouting, the realization of the lower ground pre-grouting and the upper shaft sinking Parallel operation. Combined with engineering examples, this paper introduces the construction method of directional oblique hole and ground pre-grouting construction technology