新奥法（ＮＡＴＭ）在松软岩巷掘进中的尝试平顶山矿务局五矿焦继红，李二团平顶山局五矿戊二大巷位于松软岩层中，巷道支护一度采用架棚、砌等支护形式。施工后当时看来支护效果不错，但时间一长，棚梁、棚腿产生严重变形，墙、拱变形破坏等等，问题逐渐显现出来，直接危... New Austrian law (NATM) in soft rock tunneling attempts Pingdingshan Mining Bureau Jiao Jihong, Li Erqun Pingdingshan Bureau Minmetals Mier two lanes are located in a soft rock, tunnel support was used shelter, brick and other support form. After construction, it seems that the supporting effect is good, but for a long time, shed beams, shed legs have severe deformation, wall, arch deformation damage, etc., the problem gradually emerged, the direct danger ...