小导管超前支护在煤矿建设施工中的应用

摘要

通过分析不同超前支护措施在斜井表土段暗槽及风化基岩段施工过程中的适用性，结合隧道新奥法施工，以诚南煤业回风斜井为例，探索了小导管超前支护施工工艺和方法在煤矿建设中的应用，该方法不仅可简化施工工艺，施工便捷，而且施工技术易掌握，安全性高，是一种有效的超前支护手段。%Through analyzing the applicability of different advanced support measures in the cove of topsoil seg-ment in the inclined shaft and weathered bedrock section construction process,combined with New Austrian Tunneling Method(NATM)construction,takes the return air slope of Chengnan coal company as example,explore application of a small duct advanced support construction technology and method in the construction of coal mines.The method not only simplifies the construction process,construction is convenient,easy to grasp construction technology,safety ishigh,it is an effective means of advance support.