| 摘要 |
PROBLEM TO BE SOLVED: To provide an erector device simplifying the connection with supports, capable of easily positioning and fixing the held supports at the assembling position in a tunnel, with excellent flexibility. SOLUTION: This erector device is provided with a pair of rocking base members pivotally supported on a pair of guide members 7 via pivotal support pins 34 rockably around the axis parallel with the tunnel axis and extending in the direction nearly perpendicular to the tunnel axis, a pair of rocking jacks 30 capable of rocking and driving the rocking base members respectively, a pair of moving frames 31 guided and supported movably along the linear guides provided on the rocking base members respectively, a pair of hydraulic cylinders 32 capable of moving and driving the moving frames 31 along a pair of rocking base members, and support connection sections 33 provided at the tip sections of the moving frames 31 respectively to connect the supports 28 together.
|
