中文摘要：

以西安地铁隧道建设与地裂缝发育为背景,选取地裂缝处隧道为研究模型,详细分析了地裂缝环境下地铁隧道衬砌结构的受力、变形破坏模式.地裂缝环境下,除了通常情况下的荷载以外,由于地裂缝的运动,地裂缝上下盘发生相对竖向位错运动直接作用在隧道结构上,对隧道结构的受力产生很大影响.对隧道衬砌结构的内力计算进行了讨论,建立了地裂缝环境下隧道衬砌结构纵向内力计算的简化计算模型,并通过分析得出了纵向受力的计算公式.

英文摘要：

Taking the construction of Xi＇an subway tunnel and the development of ground fissure as the background,the tunnel in the ground fissure is taken as the research model. The stress,deformation and failure modes of the lining structure of the subway tunnel under the ground fissure environment are analyzed in detail. In the environment of ground fissures,in addition to the load under normal circumstances,because of the movement of ground fissures,the relative vertical dislocation motion on the footwall of the ground fissure directly acts on the tunnel structure,which has a great influence on the stress of the tunnel structure. In this paper,the internal force calculation of tunnel lining structure is discussed. The simplified calculation model of longitudinal internal force of tunnel lining structure under ground fissure environment is established,and the calculation formula of longitudinal force is obtained by analysis.