Flexible tunnel lining segments and method for lining tunnels using these segments.

摘要

This invention provides a flexible shield tunnelling segment comprising spaced apart outer side ring members (5) arranged whereby the segment has substantially the same width as a non-flexible standard segment with which the flexible segment is used; flexible members (1) disposed between the outer side ring members (5) and internal of an outer surface member (7) and each having a flexible portion in the form of a "V" or "U" shape and upstanding joint portions on either side of the flexible portions; at least one connection ring member (3) or interconnecting flexible members (1) and a removable thrust-receiving member (9) arranged internally of the flexible member (1).