普遍认为目前美国的隧道成本高得出奇--几倍于其他国家。特别是地铁成本,简直是扶摇直上,威胁到纳税人不堪忍受,使隧道工业有失去市场的危险。所以,大力改进美国隧道工程的成本是当务之急。改进的途径,过去己指出了方向:昂贵的工艺应由有创造性和经济的技术取而代之。换言之,首先要革新。本文试图概述其改革的现状和如何使改革到来,并讨论可以做些什么。 It is generally believed that the current cost of tunnels in the United States is surprisingly high - several times that of other countries. In particular, the cost of the subway is simply skyrocketing, threatening taxpayers’ unbearableness and threatening the tunnel industry to lose its market. Therefore, it is imperative to vigorously improve the cost of U.S. tunnel projects. The way to improve has been pointed out in the past: expensive processes should be replaced by creative and economical technologies. In other words, we must first reform. This article attempts to outline the status quo of its reforms and how to bring the reforms to a conclusion and discuss what can be done.