TUNNELLING METHOD FOR CONSTRUCTING LINING REAR SIDE CUSHIONING MATERIAL LAYER

摘要

PROBLEM TO BE SOLVED: To provide a tunneling method for constructing a lining rear side cushioning material layer capable of protecting a lining by absorbing the deformation of the lining caused by the ground, when an earthquake occurs by constructing a cushioning material layer on the rear side of the lining. SOLUTION: In this tunneling method for constructing a lining rear side cushioning material layer, the lining rear-side cushioning material layer 4 is constructed on the rear surface of the lining 3 of a mountain tunnel. COPYRIGHT: (C)2010,JPO&INPIT