地下水位下降导致的隧道衬砌位移变化规律研究

Deformation of Tunnel Lining Induced by the Variation of Underground Water Level

本文针对武汉地区某地铁隧道地下水位变化,研究地下水位的下降导致的隧道衬砌位移变化规律。通过有限元三维数值模拟,分析地下水位下降对隧道的影响。研究表明:随着地下水位的降低,隧道衬砌受到的有效土压力增加,隧道的变形随之增加。

In this paper, the groundwater level change of a subway tunnel in Wuhan area is studied to study the variation law of tunnel lining displacement caused by the decline of groundwater level.The influence of the de- cline of groundwater level on the tunnel is analyzed by finite element three-dimensional numerical simulation.The results show that with the decrease of groundwater level, the effective earth pressure of tunnel lining increases, and the deformation of tunnel increases.