Water intake for segment

摘要

PROBLEM TO BE SOLVED: To easily enable manufacture in a short time without causing cost increase, and further contrive the long period of the life of the tail brush of a shield machine. SOLUTION: A main girder plate 15 and a joint plate 16 comprising steel plates are provided on the circumference in the outer peripheral side of a skin plate 14 comprising the steel plate forming an inner peripheral face to make a frame body 12. The inside of the frame body 12 is divided into two spaces by a division plate 17. An outer face skin plate 18 is provided on the outer peripheral face of one space to make an enclosed enclosure space part 10A. A synthetic resin-made cylindrical body 22 is provided at a position facing a hole part 21 formed on the skin plate 14 in the other space, and permeable concrete is filled to make a permeable part 10B. Water permeated in the permeable concrete 13 of the permeable part 10B is guided from the intake hole 20 formed by the cylindrical body 22 and the hole part 21 of the skin plate 14 to an inner face side.