Ground reinforcement method of messer shield tunnel

摘要

In order to accomplish the above object, the present invention provides a method for reinforcing a mine shaft tunnel of a mesa shield tunnel of a mesa shield tunneling method for digging up soil of a clay ground by setting a steel material support on the excavated surface, A plurality of through holes for inserting the chemical solution injection pipe are formed in the steel material support nearest to the surface, and the chemical solution injection pipe is inserted into the ground of the expected excavation section through the through hole And an angle between the excavation surface and the chemical liquid injection pipe is set to a predetermined angle to prevent the occurrence of a reinforcing blind spot, in the masonry ground reinforcement method.