Following the enlargement of the dip angle of the rock structure of the pressure of the surrounding rock and the internal force of the lining structure increase all the time.

• 最后详尽地阐述了在不同岩层倾角状况下，围岩压力与衬砌结构内力分布特征，即围岩压力与衬砌结构受力随岩层倾角的增大而增大。