CONCRETE PLACING PIPE FOR SMALL-SCALE CONTINUOUS WALL CONSTRUCTION METHOD AND CONCRETE PLACING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a concrete pouring pipe and concrete placing method for a small-scale continuous wall construction capable of preventing the dispersion in the quality of concrete an the collapse of the ground for the peripheral wall by eliminating the separation of agregates from concrete after the runoff by reducing the discharge speed concrete poured and also by preventing the floating of concrete pouring pipe by the reaction. SOLUTION: The concrete pouring pipe 5 for the small-scale continuous wall construction method is a pipe inserted vertically in a steel bar cage for pouring concrete when building a continuous wall of reinforced concrete underground by utilizing the steel bar cage, and a tip end face is closed and openings 11a, 11b are provided on the side surfaces facing each other adjacent to the closed portion 10.