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“新奥法”这一隧道工程设计施工的新理论和新技术,以它省劳力、省材料、造价低、安全、可靠等优点在世界地下工程界中显露头角并处于蓬勃发展中。从新奥法的设计施工原理中可以概括一个基本观点,即围岩是隧道最根本的支护成分。在隧道设计施工中,最关键的是如何处理围岩的问题。当采用钻眼爆破法掘进隧道时,如何控制爆破才能减少对围岩的破坏、防止其强度下降和超挖是个重要课题。
“New Austrian Law” is a new theory and new technology in the design and construction of tunnel engineering. It shows itself in the world’s underground engineering circles with its advantages of labor-saving, material saving, low cost, safety and reliability, and is booming. From the new Austrian law design and construction principles can be summarized in a basic point of view, that is, the surrounding rock is the most fundamental support component of the tunnel. In the tunnel design and construction, the most crucial is how to deal with the problem of rock. When using tunnel blasting tunneling, how to control the blasting can reduce the damage to the surrounding rock to prevent its strength and over-excavation is an important issue.