中文摘要：

针对正断层错动引起的地铁隧道变形破坏仍缺乏有效的理论预测模型的情况,基于不排水条件下上覆土体的变形机理,建立地铁隧道变形的计算方法.理论模型表明,影响隧道衬砌纵向线应变的参数有隧道半径、土层厚度、基岩断层错动量、断层倾角、隧道埋置深度和形状参数.正断层错动影响下,隧道拱顶衬砌分别在基岩下盘和基岩上盘一侧出现受拉区和受压区.而隧道拱底衬砌则分别在基岩下盘和基岩上盘一侧出现受压区和受拉区.随着隧道埋深的增加,需要进行拉裂破坏加固的范围逐渐缩小,并向基岩断层附近趋于集中.而随着基岩断层倾角的增加,隧道拉裂破坏加固区域则往基岩上盘一侧偏移,但加固区域的大小范围受断层倾角的影响并不显著.

英文摘要：

There is no a theoretical model for deformation prediction of subway tunneling induced by normal faulting. Based on the deformation mechanism of overlying soil under a undrained condition,a theoretical model was developed to calculate deformation of subway tunneling. This theoretical model show that the main influencing factor includes radius of tunnel,soil thickness,magnitude of bedrock fault movement,dip angle of bedrock fault,depth of the tunnel and a shape parameter. After normal faulting,a tensile zone and a compressive zone were observed at the crown of the lining on the side of foot wall and hanging wall,respectively. Regarding the invert of the lining,the compressive zone and the tensile zone were observed on the side of foot wall and hanging wall,respectively. With the increase in depth of tunnel,the width of reinforcing zone of lining was reduced and localized around bedrock fault. With increase in dip angel of bedrock fault,enhancing zone of lining moved towards the side of hanging wall with almost the same width.