In this paper, three-dimensional numerical modeling is performed to study the effects of strike-slip fault movement on the performance of shotcrete and segmental linings in shallow tunnels that transversely cross the fault. For this purpose, a parametric study is conducted on lining thickness, soil geo-mechanical properties, tunnel depth, and fault dip angle to assess their influence on the tunnel movements and deformation. A comparison between the segmental and the shotcrete tunnels is made to highlight their performance. The results show that the greater strike-slip fault dip angle increases the separation of the lining segments. As well, after faulting, the maximum tunnel displacement in denser soils is greater than in loose soils.

本文进行了三维数值模拟，研究了走滑断层运动对横穿断层的浅埋隧道中喷射混凝土和分段衬砌性能的影响。为此，对衬砌厚度，土壤地质力学特性，隧道深度和断层倾角进行了参数研究，以评估它们对隧道运动和变形的影响。比较分段和喷射混凝土隧道以突出其性能。结果表明，较大的走滑断层倾角增加了衬砌段的间隔。同样，断层后，在较稠密的土壤中最大的隧道位移要大于在疏松土壤中的最大隧道位移。