ACCRETION REMOVAL TOOL OF CORE MATERIAL OF UNDERGROUND CONTINUOUS WALL

To provide an accretion removal tool of a core material of an underground continuous wall which removes an accretion attached to a male joint and prevents entry of a foreign matter to the inside of a female joint, and is easily constructed and dispenses with a device for special construction.SOLUTION: An accretion removal tool 5 for removing an accretion attached to a core material 2 of an underground continuous wall used when a female joint 30 of a core material 3 is connected to a male joint 20 of a core material 2 of a previously built underground continuous wall includes a body part 50 having an upper surface 50a in contact with a lower end opening 30a of an inner space part 301 of the female joint 30, and a notch part 51 which surrounds a retaining piece 201 and an extension piece 200 of the male joint 20 and is slidably engaged in a longitudinal direction of the male joint 20, wherein an outer shape of the upper surface 50a is larger than an inner shape of a lower end opening 30a other than the notch part 51.SELECTED DRAWING: Figure 2 【課題】雄継手に付着している付着物を除去するとともに雌継手内部に異物が侵入するのを防ぎ、施工が容易で特殊な施工用機器を必要としない連続壁の芯材の付着物除去具を提供すること。【解決手段】既に建て込まれた地中連続壁の芯材２が有する雄継手２０に芯材３が有する雌継手３０を連結させて建て込まれる際に用いられる地中連続壁の芯材２に付着した付着物を除去する付着物除去具５で、雌継手３０の内空部３０１の下端開口部３０ａに当接する上面５０ａを有する本体部５０と、雄継手２０の延出片２００と抜け止め片２０１を取り囲み、且つ、雄継手２０の長手方向に沿って摺動可能に係合させる切欠き部５１と、を備え、上面５０ａの外形は、切欠き部５１以外において下端開口部３０ａの内形より大きい。【選択図】図２