围岩－隧道衬砌结构体系的减震研究

Research of Isolation of Rock Liner Structure Systems

隔震技术是近年来发展起来的一项减震新技术，对地面建筑效果显著。本文在分析了地面结构隔震原理的基础上，以隧道洞口段为研究对象，从隔震角度出发，提出了地下结构减震模式的基本构思。根据模型试验和数值分析的结果，论述了这一构思在技术上的可行性。

Isolation technique,a new technique developed in recent years for mitigating earthquake,is very effective on surface buildings. On the basis of analyzing isolation principle of surface building,and taking tunnel liner of portal part as objects,a basic conception of shock absorption model of tunnel is presented starting from seismic isolation.According to the result of model test and numerical computations,the engineering feasibility of the conception is discussed,and the contents of this paper may be used as a reference for earthquake resistant design of tunnel and underground in earthquake zones.