欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
通过动力分析和振动台模型试验相结合的方法，研究穿越断层破碎带隧道在地震作用下沿纵向的动力响应特性，当隧道位于围岩与断层破碎带接触面附近时，衬砌地震内力和应力急剧增大；当隧道断面沿纵向远离断层破碎带一定距离后，衬砌地震内力和应力逐渐趋于一个稳定值。研究表明：断层与隧道轴线夹角为35°～90°时，穿越断层破碎带隧道合理抗震设防长度为隧道跨度的3.5倍，该研究成果可为隧道工程抗震设防提供参考。
英文摘要：
With the dynamic analysis and shaking table model test,this paper focuses on the dynamic response characteristics of tunnel through fault fracture zone in longitudinal direction under seismic action. When tunnel is located on the interface of surrounding rock and fault fracture zone,the seismic internal forces and stresses of lining will increase rapidly. When the tunnel cross-section moves away from the fault fracture zone along the longitudinal direction,the seismic internal forces and stresses of lining tend to be stable gradually. The research shows when the angle between the fault and the tunnel axis is in the range of 35°-90°,the reasonable aseismic fortified length for tunnel through fault fracture zone is 3.5 times of the tunnel span. The results could provide a reference for seismic fortification of tunnel engineering.
同期刊论文项目
同项目期刊论文
期刊信息
位置：