| 摘要 |
PROBLEM TO BE SOLVED: To quickly and safely remove a ceiling and a bulkhead constituting a tunnel partitioning body in a manner excellent in economy.SOLUTION: In a removal method of a tunnel partitioning body, firstly, a tunnel partitioning body 4a located in a removal objective zone in a tunnel axial direction is separated from an internal face of a tunnel 1, and placed on a transportation bogie 31 as a removal objective partitioning body 34. Next, the removal objective partitioning body 34 is moved to a bulkhead dismantling zone in the same tunnel which is provided separately from the removal objective zone. Next, the removal objective partitioning body 34 is dismantled by using a dismantling facility 41, and separated into a removal objective ceiling plate 45 and a removal objective bulkhead plate 48. Next, the above steps are repeated after the transportation bogie is returned to a new removal objective zone in a state that the removal objective ceiling plate 45 and the removal objective bulkhead plate 48 are placed on the transportation bogie 31, and after that, the removal objective ceiling plate 45 and the removal objective bulkhead plate 48 are carried out to the outside of the tunnel in a state of being placed on the transportation bogie 31 in a plurality of stages. |
