Analysis of the internal forces in lining caused by rolling correction of DOT shield

The Double-O-Tube（DOT） shield machine is more likely to roll during DOT tunnel construction and rolling correction operation should be always conducted during construction.The surrounding environment and the internal force in lining will change during the process of rolling correction.Finite element method was adopted to analyze the internal force in lining caused by rolling correction during DOT tunnel construction.It was indicated that the internal forces in lining would vary by considering rolling correction operation.With the increase of rolling angles,the internal force increased（the maximum up to 5⁶ times） at some points,and decreased at other points.Therefore,it was reasonable to consider the redistribution of internal force in lining design.