SEGMENT CONNECTOR AND SEGMENT CONNECTION METHOD

To provide a segment connector capable of preventing a pair of segments from moving relative to one another in the axial direction of a tunnel, while simplifying a connection structure of the pair of segments and suppressing a decrease in the strength of each segment.SOLUTION: A segment connector 1 includes an axial movement restricting portion 30 that restricts the relative movement of a pair of segments connected by an engagement of a male joint 10 and a female joint 20 in a direction opposite to the direction of engagement. The axial movement restricting portion 30 has a circumferential moving portion 31 and a contacted portion 41. The circumferential moving portion 31 is located on the female joint 20 at a position that always overlaps with the female joint 20 when viewed in the axial direction, and is provided so as to be movable in the circumferential direction while movement in the thickness direction and axial direction of the segments is restricted. The contacted portion 41 is located on the male joint 10 at a position that overlaps with the circumferential moving portion 31 that has moved in the circumferential direction when the male joint 10 and the female joint 20 are engaged with each other when viewed in the axial direction.SELECTED DRAWING: Figure 6C 【課題】一対のセグメントがトンネルの軸方向に相対移動するのを防止しつつ、前記一対のセグメントの連結構造を簡素化し且つ各セグメントの強度低下を抑制可能なセグメント連結具を提供する。【解決手段】セグメント連結具１は、雄継手１０及び雌継手２０の嵌合によって連結された一対のセグメントが前記嵌合する方向に対して逆方向に相対移動するのを規制する軸方向移動規制部３０を備える。軸方向移動規制部３０は、周方向移動部３１と、被接触部４１とを有する。周方向移動部３１は、雌継手２０に、軸方向に見て雌継手２０と常時重なる位置に位置し、且つ、セグメントの厚み方向及び軸方向の移動が規制されつつ周方向に移動可能なように設けられている。被接触部４１は、雄継手１０に、軸方向に見て、雄継手１０及び雌継手２０が嵌合した状態で周方向に移動した周方向移動部３１と重なる位置に設けられている。【選択図】図６Ｃ