ABSTRACT
Sensitivity analysis refers to finding out the sensitive factors that have important influence on tunnel deformation control from many uncertain factors, and analyzing their influence degree and sensitivity degree on tunnel deformation. Sensitivity analysis helps to determine which factors have the greatest potential impact on technology optimization. Common sensitivity analysis methods include orthogonal test method, grey correlation degree method and so on. In this paper, the orthogonal test method combined with MIDAS/GTS, a large-scale finite element analysis software, is used to get the influence rules of various factors on deformation control.
