PURPOSE: To promote execution efficiency by pouring concrete from a hopper on a shaft through a telescopic connection chute, at the same time, and casting concrete from a basic pipe suspended from the upper part of the shaft with a hanging wire through rotational nozzles.
CONSTITUTION: Concrete C continuously thrown in a hopper 11 is made to flow down through a telescopic connection chute 2 and is discharged from a basic pipe 3 through branch discharge sections 40 of rotational nozzle bodies 4. Then, vibrators 6c mounted to the nozzles 4 are operated, and the concrete C is stirred. Then, a rotational driving mechanism 5 is operated to rotate the nozzles 4, discharging positions of the discharge sections 40 are displaced in the circumferential direction and, at the same time, the concrete C just discharged by the vibrators is stirred. The flowability of the concrete C is increased, and it is made to adhere to skeleton reinforcements B and liner plates (a). The basic pipe 3 is pulled out with a winch 12, and subsequently the surface for place concrete is raised. By the constitution, execution can be efficiently made with a simple device, and product quality and adhesion can be promoted.
SUZUKI SHIRO
TOYO MACHINERY CO
FUJIKURA LTD