中文摘要：

针对跨走滑断层隧道设置套管式可变形抗减震措施开展了振动台模型试验研究。通过分析围岩与隧道结构的地震加速度响应、地震动应变响应以及隧道结构的震后破坏形态,以无抗减震措施和无断层为对比例,对在直立与倾斜走滑断层处设置的套管式可变形抗减震措施进行了系统研究。结果表明：隧道结构不跨断层时的破坏多由静力所致;无论隧道结构是否跨断层,即使采用抗减震措施,拱脚和仰拱的破坏均十分严重,应根据破坏机理对二者进行重点抗震加固;在实际工程中选用套管式可变形抗减震措施,宜将外套管设置在断层活动性较强的一侧,且让两套管共同承担断层的剪切作用能较好的发挥抗减震作用;在隧道结构选线阶段应尽量避免穿越断层或其他不良地质地段,保证隧道结构所在围岩介质的连续性,使隧道结构自身具备良好的抗震性能,胜过采用抗减震措施。研究结果有利于隧道结构新型抗减震措施的开发,以及为跨走滑断层隧道结构的抗震设防提供参考。

英文摘要：

Shaking table tests are conducted to simulate casing‐shape deformable damping measures on tunnel structures across strike‐slip faults .Tunnel structures across vertical and diagonal strike‐slip faults with casing‐shape deformable damping meas‐ures are systematically researched by analyzing seismic acceleration responses of surrounding rock ,seismic strain responses and post‐seismic destructive patterns of tunnel structures .The results show that ：Post‐seismic destructive patterns of tunnel are mostly caused by static force when there is no fault through tunnel .The arch springing and invert part of tunnel are seriously damaged in all test conditions and they need to be reinforced according to failure mechanism .If casing‐shape deformable damp‐ing measure is employed in practical engineering ,outer casing should be buried in one side of fault with strong activity .It will achieve favorable effect that outer and inner casing can share shearing action of fault movement .Tunnel structures are born with certain a seismic performance if they are constructed in homogeneous surrounding rock and it will be better than using an‐ti‐seismic and damping measures .Therefore ,tunnel should avoid crossing fault and other unfavorable geology areas in tunnel location phase .The above research results certainly contribute to research and develop new types of anti‐seismic and damping measures for tunnel structures .Meanwhile ,the research results can provide references for seismic fortification of tunnel and underground structures across strike‐slip faults as well .