一、施工方法在阿尔贝尔格(Arlberg)隧道施工中成功地使用并进一步发展了新奥法(NATM),这种施工方法的原则在其它一些文章中已有详细论述。在这些原则中,哪些要给予特殊的考虑,取决于特定的地质情况及当时的经济条件,这些又影响到施工方法的采用。必须认清阿尔贝尔格隧道是一条深入于岩体中的隧道,该岩体受到巨大的岩石压力,具有高度的可变形性,在这种情况下,下列原则有着 I. Methods of Construction The New Austrian Method (NATM) has been successfully used and further developed in the construction of the Arlberg Tunnel. The principles of this method of construction have been discussed in detail in other articles. Among these principles, which should be given special consideration depends on the specific geological conditions and prevailing economic conditions, which in turn affect the adoption of construction methods. It is important to recognize that the tunnel of Albergo is a tunnel penetrating into the rock mass that is subjected to tremendous rock pressure and a high degree of deformability, in which case the following principles exist