CAGE USED FOR DIAPHRAGM WALL METHOD

摘要

PROBLEM TO BE SOLVED: To prevent the occurrence of the positional displacement of building. SOLUTION: A preceding cage 12 has a plurality of vertical reinforcements and horizontal reinforcements 16. Cutting spacers 30 are installed at both end sections in the connecting direction in the preceding cage 12. The cutting spacer 30 has a spacer body 30a, a fixture 30b, a metal fitting and a hold-down metal fitting 30d. The positions of the mounting of the spacers are set so that the outer peripheries of the spacer bodies 30a are brought near to ditch wall surfaces 100a in the connecting direction of a preceding excavated ditch 10a respectively when the preceding cage 12 is built into the preceding excavated ditch 10a.