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本文作者对隧洞掘进机在意大利导洞开挖中的应用进行了评述.并筒要地介绍了同大隧洞设计和施工有关的、用隧洞掘进机开挖导洞的主要功用。本报告还将其费用与传统开挖方法的费用作了比较。
The author reviews the application of tunnel boring machines in the excavation of the guide tunnel in Italy, and introduces the main functions of tunneling with tunnel boring machines in connection with the design and construction of large tunnels. The report also compares its costs with those of traditional methods of excavation.