高烈度地震区双线公路隧道减震措施研究

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。

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

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 ...