【摘要】 5·12汶川大地震中隧道工程显现出的大量震害现象,再次提醒工程界应高度重视隧道结构的抗震设计问题。目前我国山岭隧道结构的抗震设计多采用地震系数法,文中引入反应位移法,在简要介绍其基本原理的基础上,以单线铁路隧道工程为背景阐述了计算过程,并与地震系数法的计算结果进行比较,供同行参考。更多还原

【Abstract】 A large amount of tunnel damages in 5·12 Wenchuan Earthquake.Engineering industry is reminded again about seismic design for tunnel structure.At present,seismic design of mountainous tunnels is most of earthquake coefficient method in China.This paper introduces response displacement method and describes its basic principle.In addition,it describes the calculation process of this method taking a singleline railway tunnel as an example and compares to the result from earthquake coefficient method,providing reference to the industry.更多还原