滑坡-隧道相互作用受力变形规律的研究

调查结果表明，相当数量修建于滑坡中的隧道因发生程度不同的病害而影响线路的正常运营。为研究滑坡－隧道间的相互作用机理及受力变形规律，应用接触问题的有限元算法对这一问题进行了计算分析。简要介绍了该算法的基本原理，并应用该法对一个工程实例进行了计算，根据计算结果对滑坡隧道的受力变形特征进行了分析。

Deformation Analysis for Landslide-Tunnel Interaction

Surveys reveal that various damages often occur to many railway tunnels which are constructed in landslides, thus the normal operations of railways are influenced. A finite element method for contact problems is developed to study the interaction mechanism between landslides and tunnels and to analyze the deformation of the tunnels in landslides. The paper begins with a brief introduction to the fundamentals of this computational method, followed by the numerical simulation of an engineering example in which the method is employed to compute the deformation of the tunnels in landslides. The results obtained are useful for understanding the behaviors of the tunnels in landslides and are helpful for the prevention or treatment of the hazards of tunnels.