高烈度地震区双线公路隧道减震措施研究  

Study on Shock Absorption Measures for Double-lane Highway Tunnels in High Earthquake Intensity Regions

作　　者：凌燕婷[1] 高波[1] 

机构地区：[1]西南交通大学土木工程学院,成都610031

出　　处：《隧道建设》2008年第4期412-415,共4页Tunnel Construction

摘　　要：目前地下结构采用的减震措施主要有2种,即注浆加固和设置减震层。结合雅泸高速公路某隧道,从土-结构相互作用模型出发,运用时程分析方法研究同一地震作用下注浆加固及设置减震层这2种减震措施的地震反应,分析注浆加固范围变化对隧道地震反应的影响,得出这2种措施均可以减小隧道的地震响应,有利于减震。At present, there are two major shock absorption measures for underground structures, i. e. , grouting consolidation and shock absorption cushion. Taking a tunnel on Ya＇ an-Luzhou highway as example, the authors study on the shock reducing effect of grouting consolidation and shock absorption cushion under the same earthquake action by means of soil-structure interaction model and time-dependent analysis method. The authors also study on the influence of the changing of the grouting consolidation scope on the shock reducing effect. The authors conclude that both these two shock-reducing measures are helpful to reduce the shock response of the tunnels.

关 键 词：高烈度地震区 公路隧道 黏性边界 减震措施 

分 类 号：U452[建筑科学—桥梁与隧道工程] U457.5[交通运输工程—道路与铁道工程]