Pressing in the grout material to the casing flexible pipe in ground anchor manufacture and the grout material

摘要

PROBLEM TO BE SOLVED: To solve a structural defect in a conventional ground anchor work wherein a prestress given to an anchor head hits grout material intruding into a compressed part, and a compressing region does not occur in an unstable layer.;SOLUTION: In this ground anchor work, the grout material between a casing pipe and a bellmouth tube is discharged through the pipe section of the bellmouth tube, and then a grout material discharging section from the pipe section is sealed. After the grout material between the casing pipe and a bellmouth tube is discharged, water is fed into the casing pipe. The bellmouth tube is inserted through a tension material head moved in a lifted state in the casing pipe via an auxiliary tool. The distance between a fixing member and a pressing member is shortened by an operation body suspended between the fixing member mounted to the casing pipe and the pressing member mounted to the pipe section to press the bellmouth tube into the casing pipe.;COPYRIGHT: (C)2004,JPO&NCIPI