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由于地质、地形和环境的制约,开挖大型隧道洞门常常碰到特殊的困难。本文调查了意大利已经竣工或正在修建的一些大型隧道洞门的地层加固和选定的开挖方法,并就其修筑方法和效果提供了数据。
Due to the geological, topographic and environmental constraints, excavation of large tunnel doors often encounter special difficulties. This paper investigates stratigraphic consolidation and selected excavation methods for some of the large tunnel gates completed or under construction in Italy and provides data on the method and effect of their construction.