为应对山岭隧道工程穿越活断层和高烈度地震区的挑战，提出在初期支护与二次衬砌之间填充新型橡胶隔震层结构，设计微孔发泡橡胶复合多孔橡胶结构、微孔发泡橡胶复合加劲骨架结构、点带支承隔震结构3种隔震层方案；研制速度相关高阻尼〖ＪＰ２〗橡胶材料，并开展循环加载试验验证材料的耗能效果。通过室内静力加载试验和数值计算发现，带状支承隔震结构的刚度随变形增大而增强，这种变刚度特性使隔震层能更好地抵抗地震时快速外部荷载作用，也能适应断层慢速错动。将带状支承橡胶隔震层结构应用于兰新高铁隧道震害修复工程中，设计隧道震害整治现场结构方案，提出施工工艺、工法，实践证明该结构可保证修复后的行车安全。

To overcome the challenges involved in the application of mountain tunnel engineering in regions with active faults and highintensity seismic activity, a structural solution of filling a novel rubber seismic isolation layer between the primary support and secondary lining is proposed. Three isolation layer structure schemes, including a microcellularfoamed rubbercompositeporous rubber structure, a microcellularfoamed rubbercompositestiffened skeleton structure, and a pointband supportdamping structure, are designed. In addition, a highdamping rubber material, tailored for speedrelated applications, is developed. Cyclic loading test is performed to evaluate the energy dissipation effect of these materials. The laboratory static loading test and numerical calculation reveal that the stiffness of the bandshaped supportdamping structure increases with increasing deformation. This variable stiffness of the seismic isolation structure allows for enhanced resistance to rapid external loads during earthquakes and accommodating the gradual shearing associated with fault activity. The bandshaped supportrubber isolation layer structure is implemented in the seismic damage repair project of the LanzhouXinjiang highspeed railway, and the structural solution for the tunnel seismic damage rehabilitation is designed. The application results reveal that the rehabilitation of the tunnel employing the proposed structure ensures the safe operation of vehicles.