PROBLEM TO BE SOLVED: To provide a flexible segment for a shield method to which a waterproof rubber member can be attached without removing a thrust receiving material. SOLUTION: A flexible segment 1 is divided into a circumferential direction C and is connected in an annular shape. A pair of frame members 10 facing an axial direction A and a pair of frame members 10 are connected to each other and joined between the frame members 10. A support member provided between the thrust receiving material 20 that supports the thrust of the thrust receiving material 20 and the frame member 10 on the outer peripheral side of the thrust receiving material 20 and feeding between the annular frame members 10 while supporting the water blocking rubber that imparts flexibility. 30 and a guide rope 40 for passing a rope provided along the support member 30 and drawing in the water blocking rubber through the frame member 10 connected in an annular shape are provided, and the water blocking rubber is provided after the frame member 10 is connected in an annular shape. , The guide rope 40 is connected to the rope, and one end of the waterproof rubber is connected to the rope passed through the frame member 10 connected in an annular shape and pulled in along the support member 30, leaving the thrust receiving member 20 and the support member. Instead of 30, attach it by joining it in a ring shape. [Selection diagram] Fig. 3
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