新奥法在隧道塌方中的应用

Application of the New Austrian Method on Tunnel Landslide

隧道塌方的一般原因是施工违背了“新奥法”支护结构设计原则,本文介绍了新奥法在隧道塌方中的应用。普氏平衡拱理论表明,在一定的地质条件下,塌方高度与开挖宽度成正比。实践证实塌方高度与普氏平衡拱理论计算结果基本相符。

The general reason of the tunnel landslide is the course of construction disobeyed the ＂new austrian method＂ that the design principle about the construction supporting. This paper discusses the application of the new austrian method on tunnel landslide . PU＇s equilibrium arch theories express： under the certainly geology condition, landslide high degree is direct proportion with the dig width. Practice confirm the calculation result of landslide high degree and the PU＇s equilibrium arch theories to agree with substantially.