| 摘要 |
PROBLEM TO BE SOLVED: To automatically arrange the whole structure at the position of operation without requiring the assembly and disassembly of a timbering at each time, and to replace the whole structure at a time. SOLUTION: The timbering is composed of a rectangular fixed unit 1, leg frames 2 connected to the lower section of the fixed unit 1 in a foldable or extensible manner, and jacks 3 connected to the lower sections of the leg frames 2 vertically movably. The fixed unit 1 is constituted of a plurality of front-side vertical members 4 separately installed in the lateral direction, a plurality of rear-side vertical members separately mounted in the lateral direction similarly, a plurality of connecting materials built among each vertical member opposed before and behind, and front-rear lateral frames 6 built among the vertical members opposed left and right, and the upper sections of the leg frames 2 are united with the lower sections of each vertical member respectively.
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