A DRAINING MESH MODULE AND A METHOD OF OPERATING A DRAINING MESH IN A CONSTRUCTION

A draining mesh module (1) for building into a construction such as a tunnel wall to provide draining channels in said construction comprises at least one semi pipe (21) of a flexible material. The draining mesh module (1) has a longitudinal direction (A) and a cross direction (B) extending crosswise to the longitudinal direction. The semi pipe (21) constitutes a part of a channel (2) extending from one longitudinal end (1a) to an opposite longitudinal end (1b) of the draining mesh module (1) and that the longitudinal ends of the draining mesh module comprise attachment means (11 12) for interconnecting longitudinal ends of two adjacent draining mesh modules (1-1 1-2) whereby a channel (2) in one of those two draining mesh modules is connected to a channel (2) in the other of those two draining mesh modules.