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一、提要通过对发生在联德国铁新建高速铁路线上隧道坍方的初步分析证实,在德国Mitt- elgebire(丘陵地区)的不良地质条件下,依据新奥法(NATM)原理,采用传统的掘进方法是可行的。坍方大部分是由于多种不利因素的组合而引发的。例如,有些情况下,突发不良地质条件和施工不当组合在一起导致了坍方。由坍方最终造成的附加费用只占施工总费用的千分之几的事实说明,隧道的修建是经济和安全的。
A preliminary summary of the preliminary analysis of the tunnel collapse in the new high-speed railway line linking Germany and Germany shows that under the unfavorable geological conditions in the Mittelgebire (hilly area) in Germany and according to the NATM principle, conventional excavation The method is feasible. Most of the collapse is caused by a combination of unfavorable factors. In some cases, for example, a combination of unexpectedly poor geological conditions and improper construction led to landslides. The fact that the surcharge caused by the landslide only accounts for a few thousandths of the total cost of construction shows that the construction of the tunnel is economical and safe.